gl_backend.c File Reference

#include "quakedef.h"
#include "cl_collision.h"

Include dependency graph for gl_backend.c:

Go to the source code of this file.

Data Structures
struct	gl_state_t
struct	gltextureunit_t

Macros
#define	BACKENDACTIVECHECK   if (!gl_state.active) Sys_Error("GL backend function called when backend is not active");
#define	MAX_RENDERTARGETS   4

Functions
void	GL_ActiveTexture (unsigned int num)
void	GL_AlphaToCoverage (qbool state)
unsigned int	GL_Backend_CompileProgram (int vertexstrings_count, const char **vertexstrings_list, int geometrystrings_count, const char **geometrystrings_list, int fragmentstrings_count, const char **fragmentstrings_list)
static qbool	GL_Backend_CompileShader (int programobject, GLenum shadertypeenum, const char *shadertype, int numstrings, const char **strings)
static void	gl_backend_devicelost (void)
static void	gl_backend_devicerestored (void)
void	GL_Backend_FreeProgram (unsigned int prog)
void	gl_backend_init (void)
static void	gl_backend_newmap (void)
static void	GL_Backend_ResetState (void)
static void	gl_backend_shutdown (void)
static void	gl_backend_start (void)
static void	GL_BindEBO (int bufferobject)
static void	GL_BindUBO (int bufferobject)
static void	GL_BindVBO (int bufferobject)
void	GL_BlendEquationSubtract (qbool negated)
void	GL_BlendFunc (int blendfunc1, int blendfunc2)
void	GL_Clear (int mask, const float *colorvalue, float depthvalue, int stencilvalue)
void	GL_Color (float cr, float cg, float cb, float ca)
void	GL_ColorMask (int r, int g, int b, int a)
void	GL_CullFace (int state)
static void GLAPIENTRY	GL_DebugOutputCallback (GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length, const GLchar *message, const GLvoid *userParam)
void	GL_DepthFunc (int state)
void	GL_DepthMask (int state)
void	GL_DepthRange (float nearfrac, float farfrac)
void	GL_DepthTest (int state)
void	GL_Finish (void)
void	GL_Mesh_ListVBOs (qbool printeach)
void	GL_PolygonOffset (float planeoffset, float depthoffset)
void	GL_ReadPixelsBGRA (int x, int y, int width, int height, unsigned char *outpixels)
void	GL_Scissor (int x, int y, int width, int height)
void	GL_ScissorTest (int state)
void	GL_SetMirrorState (qbool state)
static void	GL_VBOStats_f (cmd_state_t *cmd)
void	R_GetViewport (r_viewport_t *v)
void	R_Mesh_ClearBindingsForTexture (int texnum)
void	R_Mesh_ColorPointer (int components, int gltype, size_t stride, const void *pointer, const r_meshbuffer_t *vertexbuffer, size_t bufferoffset)
void	R_Mesh_CopyToTexture (rtexture_t *tex, int tx, int ty, int sx, int sy, int width, int height)
int	R_Mesh_CreateFramebufferObject (rtexture_t *depthtexture, rtexture_t *colortexture, rtexture_t *colortexture2, rtexture_t *colortexture3, rtexture_t *colortexture4)
r_meshbuffer_t *	R_Mesh_CreateMeshBuffer (const void *data, size_t size, const char *name, qbool isindexbuffer, qbool isuniformbuffer, qbool isdynamic, qbool isindex16)
void	R_Mesh_DestroyFramebufferObject (int fbo)
void	R_Mesh_DestroyMeshBuffer (r_meshbuffer_t *buffer)
void	R_Mesh_Draw (int firstvertex, int numvertices, int firsttriangle, int numtriangles, const int *element3i, const r_meshbuffer_t *element3i_indexbuffer, int element3i_bufferoffset, const unsigned short *element3s, const r_meshbuffer_t *element3s_indexbuffer, int element3s_bufferoffset)
void	R_Mesh_Finish (void)
void	R_Mesh_PrepareVertices_Generic_Arrays (int numvertices, const float *vertex3f, const float *color4f, const float *texcoord2f)
void	R_Mesh_PrepareVertices_Mesh_Arrays (int numvertices, const float *vertex3f, const float *svector3f, const float *tvector3f, const float *normal3f, const float *color4f, const float *texcoordtexture2f, const float *texcoordlightmap2f)
void	R_Mesh_PrepareVertices_Vertex3f (int numvertices, const float *vertex3f, const r_meshbuffer_t *vertexbuffer, int bufferoffset)
void	R_Mesh_ResetTextureState (void)
void	R_Mesh_SetRenderTargets (int fbo)
void	R_Mesh_Start (void)
void	R_Mesh_TexBind (unsigned int unitnum, rtexture_t *tex)
int	R_Mesh_TexBound (unsigned int unitnum, int id)
void	R_Mesh_TexCoordPointer (unsigned int unitnum, int components, int gltype, size_t stride, const void *pointer, const r_meshbuffer_t *vertexbuffer, size_t bufferoffset)
void	R_Mesh_UpdateMeshBuffer (r_meshbuffer_t *buffer, const void *data, size_t size, qbool subdata, size_t offset)
void	R_Mesh_VertexPointer (int components, int gltype, size_t stride, const void *pointer, const r_meshbuffer_t *vertexbuffer, size_t bufferoffset)
qbool	R_ScissorForBBox (const float *mins, const float *maxs, int *scissor)
void	R_SetStencil (qbool enable, int writemask, int fail, int zfail, int zpass, int compare, int comparereference, int comparemask)
void	R_SetViewport (const r_viewport_t *v)
static void	R_Viewport_ApplyNearClipPlaneFloatGL (const r_viewport_t *v, float *m, float normalx, float normaly, float normalz, float dist)
void	R_Viewport_InitCubeSideView (r_viewport_t *v, const matrix4x4_t *cameramatrix, int side, int size, float nearclip, float farclip, const float *nearplane)
void	R_Viewport_InitOrtho (r_viewport_t *v, const matrix4x4_t *cameramatrix, int x, int y, int width, int height, float x1, float y1, float x2, float y2, float nearclip, float farclip, const float *nearplane)
void	R_Viewport_InitOrtho3D (r_viewport_t *v, const matrix4x4_t *cameramatrix, int x, int y, int width, int height, float frustumx, float frustumy, float nearclip, float farclip, const float *nearplane)
void	R_Viewport_InitPerspective (r_viewport_t *v, const matrix4x4_t *cameramatrix, int x, int y, int width, int height, float frustumx, float frustumy, float nearclip, float farclip, const float *nearplane)
void	R_Viewport_InitPerspectiveInfinite (r_viewport_t *v, const matrix4x4_t *cameramatrix, int x, int y, int width, int height, float frustumx, float frustumy, float nearclip, const float *nearplane)
void	R_Viewport_InitRectSideView (r_viewport_t *v, const matrix4x4_t *cameramatrix, int side, int size, int border, float nearclip, float farclip, const float *nearplane, int offsetx, int offsety)
void	R_Viewport_TransformToScreen (const r_viewport_t *v, const vec4_t in, vec4_t out)
void	SCR_ScreenShot_f (cmd_state_t *cmd)

Variables
static int	bboxedges [12][2]
static const char *	buffertypename [R_BUFFERDATA_COUNT] = {"vertex", "index16", "index32", "uniform"}
float	cubeviewmatrix [6][16]
static const GLuint	drawbuffers [4] = {GL_COLOR_ATTACHMENT0, GL_COLOR_ATTACHMENT1, GL_COLOR_ATTACHMENT2, GL_COLOR_ATTACHMENT3}
cvar_t	gl_debug = {CF_CLIENT, "gl_debug", "0", "enables OpenGL 4.3 debug output, 0 = off, 1 = HIGH severity only, 2 = also MEDIUM severity, 3 = also LOW severity messages. (note: enabling may not take effect until vid_restart on some drivers, and only X11 and Windows are known to support the debug context)"}
matrix4x4_t	gl_modelmatrix
qbool	gl_modelmatrixchanged
float	gl_modelview16f [16]
matrix4x4_t	gl_modelviewmatrix
float	gl_modelviewprojection16f [16]
matrix4x4_t	gl_modelviewprojectionmatrix
cvar_t	gl_paranoid = {CF_CLIENT, "gl_paranoid", "0", "enables OpenGL error checking and other tests"}
cvar_t	gl_polyblend = {CF_CLIENT | CF_ARCHIVE, "gl_polyblend", "1", "tints view while underwater, hurt, etc"}
cvar_t	gl_printcheckerror = {CF_CLIENT, "gl_printcheckerror", "0", "prints all OpenGL error checks, useful to identify location of driver crashes"}
matrix4x4_t	gl_projectionmatrix
static gl_state_t	gl_state
matrix4x4_t	gl_viewmatrix
r_viewport_t	gl_viewport
int	polygonelement3i [(POLYGONELEMENTS_MAXPOINTS-2) *3]
unsigned short	polygonelement3s [(POLYGONELEMENTS_MAXPOINTS-2) *3]
int	quadelement3i [QUADELEMENTS_MAXQUADS *6]
unsigned short	quadelement3s [QUADELEMENTS_MAXQUADS *6]
cvar_t	r_render = {CF_CLIENT, "r_render", "1", "enables rendering 3D views (you want this on!)"}
cvar_t	r_renderview = {CF_CLIENT, "r_renderview", "1", "enables rendering 3D views (you want this on!)"}
cvar_t	r_waterwarp = {CF_CLIENT | CF_ARCHIVE, "r_waterwarp", "1", "warp view while underwater"}
float	rectviewmatrix [6][16]
cvar_t	v_flipped = {CF_CLIENT, "v_flipped", "0", "mirror the screen (poor man's left handed mode)"}
qbool	v_flipped_state = false

Macro Definition Documentation

BACKENDACTIVECHECK

#define BACKENDACTIVECHECK   if (!gl_state.active) Sys_Error("GL backend function called when backend is not active");

Definition at line 110 of file gl_backend.c.

Referenced by R_Mesh_ResetTextureState(), and R_Mesh_Start().

MAX_RENDERTARGETS

#define MAX_RENDERTARGETS   4

Definition at line 5 of file gl_backend.c.

Function Documentation

GL_ActiveTexture()

void GL_ActiveTexture

(

unsigned int

num

)

Definition at line 1141 of file gl_backend.c.

{
    if (gl_state.unit != num)
    {
        gl_state.unit = num;
        switch(vid.renderpath)
        {
        case RENDERPATH_GL32:
        case RENDERPATH_GLES2:
            CHECKGLERROR
            qglActiveTexture(GL_TEXTURE0 + gl_state.unit);CHECKGLERROR
            break;
        }
    }
}

References CHECKGLERROR, gl_state, GL_TEXTURE0, viddef_t::renderpath, RENDERPATH_GL32, RENDERPATH_GLES2, gl_state_t::unit, and vid.

Referenced by GL_TextureMode_f(), R_LoadTextureDDSFile(), R_Mesh_CopyToTexture(), R_Mesh_TexBind(), R_SaveTextureDDSFile(), R_Textures_Frame(), R_UploadFullTexture(), and R_UploadPartialTexture().

GL_AlphaToCoverage()

void GL_AlphaToCoverage

(

qbool

state

)

Definition at line 1374 of file gl_backend.c.

{
    if (gl_state.alphatocoverage != state)
    {
        gl_state.alphatocoverage = state;
        switch(vid.renderpath)
        {
        case RENDERPATH_GLES2:
            break;
        case RENDERPATH_GL32:
#ifndef USE_GLES2
            // alpha to coverage turns the alpha value of the pixel into 0%, 25%, 50%, 75% or 100% by masking the multisample fragments accordingly
            CHECKGLERROR
            if (gl_state.alphatocoverage)
            {
                qglEnable(GL_SAMPLE_ALPHA_TO_COVERAGE);CHECKGLERROR
//              qglEnable(GL_MULTISAMPLE);CHECKGLERROR
            }
            else
            {
                qglDisable(GL_SAMPLE_ALPHA_TO_COVERAGE);CHECKGLERROR
//              qglDisable(GL_MULTISAMPLE);CHECKGLERROR
            }
#endif
            break;
        }
    }
}

References gl_state_t::alphatocoverage, CHECKGLERROR, GL_SAMPLE_ALPHA_TO_COVERAGE, gl_state, viddef_t::renderpath, RENDERPATH_GL32, RENDERPATH_GLES2, and vid.

Referenced by R_SetupShader_DeferredLight(), R_SetupShader_DepthOrShadow(), R_SetupShader_Generic(), and R_SetupShader_Surface().

GL_Backend_CompileProgram()

unsigned int GL_Backend_CompileProgram	(	int	vertexstrings_count,
		const char **	vertexstrings_list,
		int	geometrystrings_count,
		const char **	geometrystrings_list,
		int	fragmentstrings_count,
		const char **	fragmentstrings_list )

Definition at line 1690 of file gl_backend.c.

{
    GLint programlinked;
    GLuint programobject = 0;
    char linklog[MAX_INPUTLINE];
    CHECKGLERROR
 
    programobject = qglCreateProgram();CHECKGLERROR
    if (!programobject)
        return 0;
 
    qglBindAttribLocation(programobject, GLSLATTRIB_POSITION , "Attrib_Position" );
    qglBindAttribLocation(programobject, GLSLATTRIB_COLOR    , "Attrib_Color"    );
    qglBindAttribLocation(programobject, GLSLATTRIB_TEXCOORD0, "Attrib_TexCoord0");
    qglBindAttribLocation(programobject, GLSLATTRIB_TEXCOORD1, "Attrib_TexCoord1");
    qglBindAttribLocation(programobject, GLSLATTRIB_TEXCOORD2, "Attrib_TexCoord2");
    qglBindAttribLocation(programobject, GLSLATTRIB_TEXCOORD3, "Attrib_TexCoord3");
    qglBindAttribLocation(programobject, GLSLATTRIB_TEXCOORD4, "Attrib_TexCoord4");
    qglBindAttribLocation(programobject, GLSLATTRIB_TEXCOORD5, "Attrib_TexCoord5");
    qglBindAttribLocation(programobject, GLSLATTRIB_TEXCOORD6, "Attrib_SkeletalIndex");
    qglBindAttribLocation(programobject, GLSLATTRIB_TEXCOORD7, "Attrib_SkeletalWeight");
#ifndef USE_GLES2
    qglBindFragDataLocation(programobject, 0, "dp_FragColor");
#endif
    CHECKGLERROR
 
    if (vertexstrings_count && !GL_Backend_CompileShader(programobject, GL_VERTEX_SHADER, "vertex", vertexstrings_count, vertexstrings_list))
        goto cleanup;
 
#if defined(GL_GEOMETRY_SHADER) && !defined(USE_GLES2)
    if (geometrystrings_count && !GL_Backend_CompileShader(programobject, GL_GEOMETRY_SHADER, "geometry", geometrystrings_count, geometrystrings_list))
        goto cleanup;
#endif
 
    if (fragmentstrings_count && !GL_Backend_CompileShader(programobject, GL_FRAGMENT_SHADER, "fragment", fragmentstrings_count, fragmentstrings_list))
        goto cleanup;
 
    qglLinkProgram(programobject);CHECKGLERROR
    qglGetProgramiv(programobject, GL_LINK_STATUS, &programlinked);CHECKGLERROR
    qglGetProgramInfoLog(programobject, sizeof(linklog), NULL, linklog);CHECKGLERROR
 
    if (linklog[0])
    {
 
        if (strstr(linklog, "error") || strstr(linklog, "ERROR") || strstr(linklog, "Error") || strstr(linklog, "WARNING") || strstr(linklog, "warning") || strstr(linklog, "Warning") || developer_extra.integer)
            Con_DPrintf("program link log:\n%s\n", linklog);
 
        // software vertex shader is ok but software fragment shader is WAY
        // too slow, fail program if so.
        // NOTE: this string might be ATI specific, but that's ok because the
        // ATI R300 chip (Radeon 9500-9800/X300) is the most likely to use a
        // software fragment shader due to low instruction and dependent
        // texture limits.
        if (strstr(linklog, "fragment shader will run in software"))
            programlinked = false;
    }
 
    if (!programlinked)
        goto cleanup;
 
    return programobject;
cleanup:
    qglDeleteProgram(programobject);CHECKGLERROR
    return 0;
}

References CHECKGLERROR, Con_DPrintf(), developer_extra, GL_Backend_CompileShader(), GL_FRAGMENT_SHADER, GL_LINK_STATUS, GL_VERTEX_SHADER, GLSLATTRIB_COLOR, GLSLATTRIB_POSITION, GLSLATTRIB_TEXCOORD0, GLSLATTRIB_TEXCOORD1, GLSLATTRIB_TEXCOORD2, GLSLATTRIB_TEXCOORD3, GLSLATTRIB_TEXCOORD4, GLSLATTRIB_TEXCOORD5, GLSLATTRIB_TEXCOORD6, GLSLATTRIB_TEXCOORD7, cvar_t::integer, MAX_INPUTLINE, and NULL.

Referenced by R_GLSL_CompilePermutation().

GL_Backend_CompileShader()

static qbool GL_Backend_CompileShader ( int programobject, GLenum shadertypeenum, const char * shadertype, int numstrings, const char ** strings )

static

Definition at line 1659 of file gl_backend.c.

{
    int shaderobject;
    int shadercompiled;
    char compilelog[MAX_INPUTLINE];
    shaderobject = qglCreateShader(shadertypeenum);CHECKGLERROR
    if (!shaderobject)
        return false;
    qglShaderSource(shaderobject, numstrings, strings, NULL);CHECKGLERROR
    qglCompileShader(shaderobject);CHECKGLERROR
    qglGetShaderiv(shaderobject, GL_COMPILE_STATUS, &shadercompiled);CHECKGLERROR
    qglGetShaderInfoLog(shaderobject, sizeof(compilelog), NULL, compilelog);CHECKGLERROR
    if (compilelog[0] && ((strstr(compilelog, "error") || strstr(compilelog, "ERROR") || strstr(compilelog, "Error")) || ((strstr(compilelog, "WARNING") || strstr(compilelog, "warning") || strstr(compilelog, "Warning")) && developer.integer) || developer_extra.integer))
    {
        int i, j, pretextlines = 0;
        for (i = 0;i < numstrings - 1;i++)
            for (j = 0;strings[i][j];j++)
                if (strings[i][j] == '\n')
                    pretextlines++;
        Con_Printf("%s shader compile log:\n%s\n(line offset for any above warnings/errors: %i)\n", shadertype, compilelog, pretextlines);
    }
    if (!shadercompiled)
    {
        qglDeleteShader(shaderobject);CHECKGLERROR
        return false;
    }
    qglAttachShader(programobject, shaderobject);CHECKGLERROR
    qglDeleteShader(shaderobject);CHECKGLERROR
    return true;
}

References CHECKGLERROR, Con_Printf(), developer, developer_extra, GL_COMPILE_STATUS, i, cvar_t::integer, MAX_INPUTLINE, and NULL.

Referenced by GL_Backend_CompileProgram().

gl_backend_devicelost()

static void gl_backend_devicelost ( void )

static

Definition at line 304 of file gl_backend.c.

{
    int i, endindex;
    r_meshbuffer_t *buffer;
    switch(vid.renderpath)
    {
    case RENDERPATH_GL32:
    case RENDERPATH_GLES2:
        break;
    }
    endindex = (int)Mem_ExpandableArray_IndexRange(&gl_state.meshbufferarray);
    for (i = 0;i < endindex;i++)
    {
        buffer = (r_meshbuffer_t *) Mem_ExpandableArray_RecordAtIndex(&gl_state.meshbufferarray, i);
        if (!buffer || !buffer->isdynamic)
            continue;
        switch(vid.renderpath)
        {
        case RENDERPATH_GL32:
        case RENDERPATH_GLES2:
            break;
        }
    }
}

References buffer, gl_state, i, int(), Mem_ExpandableArray_IndexRange(), Mem_ExpandableArray_RecordAtIndex(), gl_state_t::meshbufferarray, viddef_t::renderpath, RENDERPATH_GL32, RENDERPATH_GLES2, and vid.

Referenced by gl_backend_init().

gl_backend_devicerestored()

static void gl_backend_devicerestored ( void )

static

Definition at line 329 of file gl_backend.c.

{
    switch(vid.renderpath)
    {
    case RENDERPATH_GL32:
    case RENDERPATH_GLES2:
        break;
    }
}

References viddef_t::renderpath, RENDERPATH_GL32, RENDERPATH_GLES2, and vid.

Referenced by gl_backend_init().

GL_Backend_FreeProgram()

void GL_Backend_FreeProgram

(

unsigned int

prog

)

Definition at line 1756 of file gl_backend.c.

{
    CHECKGLERROR
    qglDeleteProgram(prog);
    CHECKGLERROR
}

References CHECKGLERROR.

Referenced by R_GLSL_Restart_f().

gl_backend_init()

void gl_backend_init

(

void

)

Definition at line 339 of file gl_backend.c.

{
    int i;
 
    for (i = 0;i < POLYGONELEMENTS_MAXPOINTS - 2;i++)
    {
        polygonelement3s[i * 3 + 0] = 0;
        polygonelement3s[i * 3 + 1] = i + 1;
        polygonelement3s[i * 3 + 2] = i + 2;
    }
    // elements for rendering a series of quads as triangles
    for (i = 0;i < QUADELEMENTS_MAXQUADS;i++)
    {
        quadelement3s[i * 6 + 0] = i * 4;
        quadelement3s[i * 6 + 1] = i * 4 + 1;
        quadelement3s[i * 6 + 2] = i * 4 + 2;
        quadelement3s[i * 6 + 3] = i * 4;
        quadelement3s[i * 6 + 4] = i * 4 + 2;
        quadelement3s[i * 6 + 5] = i * 4 + 3;
    }
 
    for (i = 0;i < (POLYGONELEMENTS_MAXPOINTS - 2)*3;i++)
        polygonelement3i[i] = polygonelement3s[i];
    for (i = 0;i < QUADELEMENTS_MAXQUADS*6;i++)
        quadelement3i[i] = quadelement3s[i];
 
    Cvar_RegisterVariable(&r_render);
    Cvar_RegisterVariable(&r_renderview);
    Cvar_RegisterVariable(&r_waterwarp);
    Cvar_RegisterVariable(&gl_polyblend);
    Cvar_RegisterVariable(&v_flipped);
    Cvar_RegisterVariable(&gl_debug);
    Cvar_RegisterVariable(&gl_paranoid);
#ifdef DEBUGGL // gl_printcheckerror does nothing in normal builds
    Cvar_RegisterVariable(&gl_printcheckerror);
#endif
 
    Cmd_AddCommand(CF_CLIENT, "gl_vbostats", GL_VBOStats_f, "prints a list of all buffer objects (vertex data and triangle elements) and total video memory used by them");
 
    R_RegisterModule("GL_Backend", gl_backend_start, gl_backend_shutdown, gl_backend_newmap, gl_backend_devicelost, gl_backend_devicerestored);
}

References CF_CLIENT, Cmd_AddCommand(), Cvar_RegisterVariable(), gl_backend_devicelost(), gl_backend_devicerestored(), gl_backend_newmap(), gl_backend_shutdown(), gl_backend_start(), gl_debug, gl_paranoid, gl_polyblend, gl_printcheckerror, GL_VBOStats_f(), i, polygonelement3i, polygonelement3s, POLYGONELEMENTS_MAXPOINTS, quadelement3i, quadelement3s, QUADELEMENTS_MAXQUADS, R_RegisterModule(), r_render, r_renderview, r_waterwarp, and v_flipped.

Referenced by Render_Init().

gl_backend_newmap()

static void gl_backend_newmap ( void )

static

Definition at line 300 of file gl_backend.c.

{
}

Referenced by gl_backend_init().

GL_Backend_ResetState()

static void GL_Backend_ResetState ( void )

static

Definition at line 1075 of file gl_backend.c.

{
    gl_state.active = true;
    gl_state.depthtest = true;
    gl_state.alphatocoverage = false;
    gl_state.blendfunc1 = GL_ONE;
    gl_state.blendfunc2 = GL_ZERO;
    gl_state.blend = false;
    gl_state.depthmask = GL_TRUE;
    gl_state.colormask = 15;
    gl_state.color4f[0] = gl_state.color4f[1] = gl_state.color4f[2] = gl_state.color4f[3] = 1;
    gl_state.lockrange_first = 0;
    gl_state.lockrange_count = 0;
    gl_state.cullface = GL_FRONT;
    gl_state.cullfaceenable = false;
    gl_state.polygonoffset[0] = 0;
    gl_state.polygonoffset[1] = 0;
    gl_state.framebufferobject = 0;
    gl_state.depthfunc = GL_LEQUAL;
 
    switch(vid.renderpath)
    {
    case RENDERPATH_GL32:
    case RENDERPATH_GLES2:
        // set up debug output early
        if (gl_debug.integer > 0 && vid.support.arb_debug_output)
        {
            GLuint unused = 0;
            CHECKGLERROR
            Con_Print("gl_debug: GL_ARB_debug_output is supported, enabling callback\n");
            if (gl_debug.integer >= 1)
                qglEnable(GL_DEBUG_OUTPUT_SYNCHRONOUS_ARB);
            if (gl_debug.integer >= 3)
                qglDebugMessageControlARB(GL_DONT_CARE, GL_DONT_CARE, GL_DONT_CARE, 0, &unused, gl_debug.integer >= 3 ? GL_TRUE : GL_FALSE);
            else if (gl_debug.integer >= 1)
            {
                qglDebugMessageControlARB(GL_DONT_CARE, GL_DONT_CARE, GL_DEBUG_SEVERITY_LOW_ARB, 0, &unused, gl_debug.integer >= 3 ? GL_TRUE : GL_FALSE);
                qglDebugMessageControlARB(GL_DONT_CARE, GL_DONT_CARE, GL_DEBUG_SEVERITY_MEDIUM_ARB, 0, &unused, gl_debug.integer >= 2 ? GL_TRUE : GL_FALSE);
                qglDebugMessageControlARB(GL_DONT_CARE, GL_DONT_CARE, GL_DEBUG_SEVERITY_HIGH_ARB, 0, &unused, gl_debug.integer >= 1 ? GL_TRUE : GL_FALSE);
            }
            else
                qglDebugMessageControlARB(GL_DONT_CARE, GL_DONT_CARE, GL_DONT_CARE, 0, &unused, GL_FALSE);
            qglDebugMessageCallbackARB(GL_DebugOutputCallback, NULL);
        }
        CHECKGLERROR
        qglColorMask(1, 1, 1, 1);CHECKGLERROR
        qglBlendFunc(gl_state.blendfunc1, gl_state.blendfunc2);CHECKGLERROR
        qglDisable(GL_BLEND);CHECKGLERROR
        qglCullFace(gl_state.cullface);CHECKGLERROR
        qglDisable(GL_CULL_FACE);CHECKGLERROR
        qglDepthFunc(GL_LEQUAL);CHECKGLERROR
        qglEnable(GL_DEPTH_TEST);CHECKGLERROR
        qglDepthMask(gl_state.depthmask);CHECKGLERROR
        qglPolygonOffset(gl_state.polygonoffset[0], gl_state.polygonoffset[1]);
        qglBindBuffer(GL_ARRAY_BUFFER, 0);
        qglBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
        qglBindFramebuffer(GL_FRAMEBUFFER, gl_state.defaultframebufferobject);
        qglEnableVertexAttribArray(GLSLATTRIB_POSITION);
        qglDisableVertexAttribArray(GLSLATTRIB_COLOR);
        qglVertexAttrib4f(GLSLATTRIB_COLOR, 1, 1, 1, 1);
        gl_state.unit = MAX_TEXTUREUNITS;
        CHECKGLERROR
        break;
    }
}

References gl_state_t::active, gl_state_t::alphatocoverage, viddef_support_t::arb_debug_output, gl_state_t::blend, gl_state_t::blendfunc1, gl_state_t::blendfunc2, CHECKGLERROR, gl_state_t::color4f, gl_state_t::colormask, Con_Print(), gl_state_t::cullface, gl_state_t::cullfaceenable, gl_state_t::defaultframebufferobject, gl_state_t::depthfunc, gl_state_t::depthmask, gl_state_t::depthtest, gl_state_t::framebufferobject, GL_ARRAY_BUFFER, GL_BLEND, GL_CULL_FACE, gl_debug, GL_DEBUG_OUTPUT_SYNCHRONOUS_ARB, GL_DEBUG_SEVERITY_HIGH_ARB, GL_DEBUG_SEVERITY_LOW_ARB, GL_DEBUG_SEVERITY_MEDIUM_ARB, GL_DebugOutputCallback(), GL_DEPTH_TEST, GL_DONT_CARE, GL_ELEMENT_ARRAY_BUFFER, GL_FALSE, GL_FRAMEBUFFER, GL_FRONT, GL_LEQUAL, GL_ONE, gl_state, GL_TRUE, GL_ZERO, GLSLATTRIB_COLOR, GLSLATTRIB_POSITION, cvar_t::integer, gl_state_t::lockrange_count, gl_state_t::lockrange_first, MAX_TEXTUREUNITS, NULL, gl_state_t::polygonoffset, viddef_t::renderpath, RENDERPATH_GL32, RENDERPATH_GLES2, viddef_t::support, gl_state_t::unit, and vid.

Referenced by gl_backend_start().

gl_backend_shutdown()

static void gl_backend_shutdown ( void )

static

Definition at line 281 of file gl_backend.c.

{
    Con_Print("OpenGL backend shutting down\n");
 
    switch(vid.renderpath)
    {
    case RENDERPATH_GL32:
    case RENDERPATH_GLES2:
        break;
    }
 
    if (gl_state.preparevertices_tempdata)
        Mem_Free(gl_state.preparevertices_tempdata);
 
    Mem_ExpandableArray_FreeArray(&gl_state.meshbufferarray);
 
    memset(&gl_state, 0, sizeof(gl_state));
}

References Con_Print(), gl_state, Mem_ExpandableArray_FreeArray(), Mem_Free, gl_state_t::meshbufferarray, gl_state_t::preparevertices_tempdata, viddef_t::renderpath, RENDERPATH_GL32, RENDERPATH_GLES2, and vid.

Referenced by gl_backend_init().

gl_backend_start()

static void gl_backend_start ( void )

static

Definition at line 252 of file gl_backend.c.

{
    memset(&gl_state, 0, sizeof(gl_state));
 
    Mem_ExpandableArray_NewArray(&gl_state.meshbufferarray, r_main_mempool, sizeof(r_meshbuffer_t), 128);
 
    Con_Printf("OpenGL backend started\n");
 
    CHECKGLERROR
 
    switch(vid.renderpath)
    {
#ifndef USE_GLES2
    case RENDERPATH_GL32:
        // GL3.2 Core requires that we have a VAO bound - but using more than one has no performance benefit so this is just placeholder
        qglGenVertexArrays(1, &gl_state.defaultvao);
        qglBindVertexArray(gl_state.defaultvao);
        // fall through
#endif //USE_GLES2
    case RENDERPATH_GLES2:
        // fetch current fbo here (default fbo is not 0 on some GLES devices)
        CHECKGLERROR
        qglGetIntegerv(GL_FRAMEBUFFER_BINDING, &gl_state.defaultframebufferobject);CHECKGLERROR
        break;
    }
 
    GL_Backend_ResetState();
}

References CHECKGLERROR, Con_Printf(), gl_state_t::defaultframebufferobject, gl_state_t::defaultvao, GL_Backend_ResetState(), GL_FRAMEBUFFER_BINDING, gl_state, Mem_ExpandableArray_NewArray(), gl_state_t::meshbufferarray, r_main_mempool, viddef_t::renderpath, RENDERPATH_GL32, RENDERPATH_GLES2, and vid.

Referenced by gl_backend_init().

GL_BindEBO()

static void GL_BindEBO ( int bufferobject )

static

Definition at line 937 of file gl_backend.c.

{
    if (gl_state.elementbufferobject != bufferobject)
    {
        gl_state.elementbufferobject = bufferobject;
        CHECKGLERROR
        qglBindBuffer(GL_ELEMENT_ARRAY_BUFFER, bufferobject);CHECKGLERROR
    }
}

References CHECKGLERROR, gl_state_t::elementbufferobject, GL_ELEMENT_ARRAY_BUFFER, and gl_state.

Referenced by R_Mesh_Draw(), and R_Mesh_UpdateMeshBuffer().

GL_BindUBO()

static void GL_BindUBO ( int bufferobject )

static

Definition at line 947 of file gl_backend.c.

{
    if (gl_state.uniformbufferobject != bufferobject)
    {
        gl_state.uniformbufferobject = bufferobject;
#ifdef GL_UNIFORM_BUFFER
        CHECKGLERROR
        qglBindBuffer(GL_UNIFORM_BUFFER, bufferobject);CHECKGLERROR
#endif
    }
}

References CHECKGLERROR, gl_state, GL_UNIFORM_BUFFER, and gl_state_t::uniformbufferobject.

Referenced by R_Mesh_UpdateMeshBuffer().

GL_BindVBO()

static void GL_BindVBO ( int bufferobject )

static

Definition at line 927 of file gl_backend.c.

{
    if (gl_state.vertexbufferobject != bufferobject)
    {
        gl_state.vertexbufferobject = bufferobject;
        CHECKGLERROR
        qglBindBuffer(GL_ARRAY_BUFFER, bufferobject);CHECKGLERROR
    }
}

References CHECKGLERROR, GL_ARRAY_BUFFER, gl_state, and gl_state_t::vertexbufferobject.

Referenced by R_Mesh_ColorPointer(), R_Mesh_TexCoordPointer(), R_Mesh_UpdateMeshBuffer(), and R_Mesh_VertexPointer().

GL_BlendEquationSubtract()

void GL_BlendEquationSubtract

(

qbool

negated

)

Definition at line 2303 of file gl_backend.c.

{
    CHECKGLERROR
    if(negated)
    {
        switch(vid.renderpath)
        {
        case RENDERPATH_GL32:
        case RENDERPATH_GLES2:
            qglBlendEquation(GL_FUNC_REVERSE_SUBTRACT);CHECKGLERROR
            break;
        }
    }
    else
    {
        switch(vid.renderpath)
        {
        case RENDERPATH_GL32:
        case RENDERPATH_GLES2:
            qglBlendEquation(GL_FUNC_ADD);CHECKGLERROR
            break;
        }
    }
}

References CHECKGLERROR, GL_FUNC_ADD, GL_FUNC_REVERSE_SUBTRACT, viddef_t::renderpath, RENDERPATH_GL32, RENDERPATH_GLES2, and vid.

Referenced by R_DrawCorona(), and R_Shadow_RenderLighting().

GL_BlendFunc()

void GL_BlendFunc	(	int	blendfunc1,
		int	blendfunc2 )

Definition at line 1157 of file gl_backend.c.

{
    if (gl_state.blendfunc1 != blendfunc1 || gl_state.blendfunc2 != blendfunc2)
    {
        qbool blendenable;
        gl_state.blendfunc1 = blendfunc1;
        gl_state.blendfunc2 = blendfunc2;
        blendenable = (gl_state.blendfunc1 != GL_ONE || gl_state.blendfunc2 != GL_ZERO);
        switch(vid.renderpath)
        {
        case RENDERPATH_GL32:
        case RENDERPATH_GLES2:
            CHECKGLERROR
            if (qglBlendFuncSeparate)
            {
                qglBlendFuncSeparate(gl_state.blendfunc1, gl_state.blendfunc2, GL_ZERO, GL_ONE);CHECKGLERROR // ELUAN: Adreno 225 (and others) compositing workaround
            }
            else
            {
                qglBlendFunc(gl_state.blendfunc1, gl_state.blendfunc2);CHECKGLERROR
            }
            if (gl_state.blend != blendenable)
            {
                gl_state.blend = blendenable;
                if (!gl_state.blend)
                {
                    qglDisable(GL_BLEND);CHECKGLERROR
                }
                else
                {
                    qglEnable(GL_BLEND);CHECKGLERROR
                }
            }
            break;
        }
    }
}

References gl_state_t::blend, gl_state_t::blendfunc1, gl_state_t::blendfunc2, CHECKGLERROR, GL_BLEND, GL_ONE, gl_state, GL_ZERO, viddef_t::renderpath, RENDERPATH_GL32, RENDERPATH_GLES2, and vid.

Referenced by R_BlendView(), R_Bloom_MakeTexture(), R_DrawBBoxMesh(), R_DrawDebugModel(), R_DrawExplosion_TransparentCallback(), R_DrawLoc_Callback(), R_DrawModelDecals_Entity(), R_DrawNoModel_TransparentCallback(), R_DrawParticle_TransparentCallback(), R_DrawPortal_Callback(), R_DrawSurface_TransparentCallback(), R_DrawTextureSurfaceList_ShowSurfaces(), R_DrawTextureSurfaceList_Sky(), R_Mod_DrawDepth(), R_MotionBlurView(), R_ResetViewRendering2D_Common(), R_ResetViewRendering3D(), R_SetupShader_Surface(), R_Shadow_DrawCoronas(), R_Shadow_DrawPrepass(), R_Shadow_RenderMode_Begin(), R_Shadow_RenderMode_DrawDeferredLight(), R_Shadow_RenderMode_Lighting(), R_Shadow_RenderMode_Reset(), R_Shadow_RenderMode_VisibleLighting(), SCR_DrawLoadingScreen(), and SCR_DrawLoadingStack().

GL_Clear()

void GL_Clear	(	int	mask,
		const float *	colorvalue,
		float	depthvalue,
		int	stencilvalue )

Definition at line 1471 of file gl_backend.c.

{
    // opaque black - if you want transparent black, you'll need to pass in a colorvalue
    static const float blackcolor[4] = {0.0f, 0.0f, 0.0f, 1.0f};
    // prevent warnings when trying to clear a buffer that does not exist
    if (!colorvalue)
        colorvalue = blackcolor;
    if (!vid.stencil)
    {
        mask &= ~GL_STENCIL_BUFFER_BIT;
        stencilvalue = 0;
    }
    switch(vid.renderpath)
    {
    case RENDERPATH_GL32:
    case RENDERPATH_GLES2:
        CHECKGLERROR
        if (mask & GL_COLOR_BUFFER_BIT)
        {
            qglClearColor(colorvalue[0], colorvalue[1], colorvalue[2], colorvalue[3]);CHECKGLERROR
        }
        if (mask & GL_DEPTH_BUFFER_BIT)
        {
#ifdef USE_GLES2
            //qglClearDepthf(depthvalue);CHECKGLERROR
#else
            qglClearDepth(depthvalue);CHECKGLERROR
#endif
        }
        if (mask & GL_STENCIL_BUFFER_BIT)
        {
            qglClearStencil(stencilvalue);CHECKGLERROR
        }
        qglClear(mask);CHECKGLERROR
        break;
    }
}

References CHECKGLERROR, GL_COLOR_BUFFER_BIT, GL_DEPTH_BUFFER_BIT, GL_STENCIL_BUFFER_BIT, mask, viddef_t::renderpath, RENDERPATH_GL32, RENDERPATH_GLES2, viddef_t::stencil, and vid.

Referenced by R_Bloom_MakeTexture(), R_ClearScreen(), R_RenderView(), R_Shadow_ClearShadowMapTexture(), R_Shadow_ClearStencil(), R_Shadow_DrawPrepass(), and VID_InitModeGL().

GL_Color()

void GL_Color	(	float	cr,
		float	cg,
		float	cb,
		float	ca )

Definition at line 1421 of file gl_backend.c.

{
    if (gl_state.pointer_color_enabled || gl_state.color4f[0] != cr || gl_state.color4f[1] != cg || gl_state.color4f[2] != cb || gl_state.color4f[3] != ca)
    {
        gl_state.color4f[0] = cr;
        gl_state.color4f[1] = cg;
        gl_state.color4f[2] = cb;
        gl_state.color4f[3] = ca;
        switch(vid.renderpath)
        {
        case RENDERPATH_GL32:
        case RENDERPATH_GLES2:
            qglVertexAttrib4f(GLSLATTRIB_COLOR, cr, cg, cb, ca);CHECKGLERROR
            break;
        }
    }
}

References CHECKGLERROR, gl_state_t::color4f, gl_state, GLSLATTRIB_COLOR, gl_state_t::pointer_color_enabled, viddef_t::renderpath, RENDERPATH_GL32, RENDERPATH_GLES2, and vid.

Referenced by R_BlendView(), R_Bloom_MakeTexture(), R_DrawDebugModel(), R_DrawExplosion_TransparentCallback(), R_DrawLoc_Callback(), R_DrawPortal_Callback(), R_DrawSurface_TransparentCallback(), R_DrawTextureSurfaceList_Sky(), R_Mod_DrawDepth(), R_MotionBlurView(), R_ResetViewRendering2D_Common(), R_ResetViewRendering3D(), R_Shadow_DrawPrepass(), R_Shadow_RenderMode_Begin(), R_Shadow_RenderMode_Reset(), R_Shadow_RenderMode_VisibleLighting(), and SCR_DrawLoadingScreen().

GL_ColorMask()

void GL_ColorMask	(	int	r,
		int	g,
		int	b,
		int	a )

Definition at line 1403 of file gl_backend.c.

{
    // NOTE: this matches D3DCOLORWRITEENABLE_RED, GREEN, BLUE, ALPHA
    int state = (r ? 1 : 0) | (g ? 2 : 0) | (b ? 4 : 0) | (a ? 8 : 0);
    if (gl_state.colormask != state)
    {
        gl_state.colormask = state;
        switch(vid.renderpath)
        {
        case RENDERPATH_GL32:
        case RENDERPATH_GLES2:
            CHECKGLERROR
            qglColorMask((GLboolean)r, (GLboolean)g, (GLboolean)b, (GLboolean)a);CHECKGLERROR
            break;
        }
    }
}

References a, b, CHECKGLERROR, gl_state_t::colormask, g, gl_state, r, viddef_t::renderpath, RENDERPATH_GL32, RENDERPATH_GLES2, and vid.

Referenced by CL_UpdateScreen(), R_DrawSurface_TransparentCallback(), R_DrawTextureSurfaceList_Sky(), R_Mod_DrawDepth(), R_ResetViewRendering2D_Common(), R_ResetViewRendering3D(), R_Shadow_ClearShadowMapTexture(), R_Shadow_DrawCoronas(), R_Shadow_DrawPrepass(), R_Shadow_RenderMode_DrawDeferredLight(), R_Shadow_RenderMode_Lighting(), R_Shadow_RenderMode_Reset(), and R_Shadow_RenderMode_ShadowMap().

GL_CullFace()

void GL_CullFace

(

int

state

)

Definition at line 1333 of file gl_backend.c.

{
    if(v_flipped_state)
    {
        if(state == GL_FRONT)
            state = GL_BACK;
        else if(state == GL_BACK)
            state = GL_FRONT;
    }
 
    switch(vid.renderpath)
    {
    case RENDERPATH_GL32:
    case RENDERPATH_GLES2:
        CHECKGLERROR
 
        if (state != GL_NONE)
        {
            if (!gl_state.cullfaceenable)
            {
                gl_state.cullfaceenable = true;
                qglEnable(GL_CULL_FACE);CHECKGLERROR
            }
            if (gl_state.cullface != state)
            {
                gl_state.cullface = state;
                qglCullFace(gl_state.cullface);CHECKGLERROR
            }
        }
        else
        {
            if (gl_state.cullfaceenable)
            {
                gl_state.cullfaceenable = false;
                qglDisable(GL_CULL_FACE);CHECKGLERROR
            }
        }
        break;
    }
}

References CHECKGLERROR, gl_state_t::cullface, gl_state_t::cullfaceenable, GL_BACK, GL_CULL_FACE, GL_FRONT, GL_NONE, gl_state, viddef_t::renderpath, RENDERPATH_GL32, RENDERPATH_GLES2, v_flipped_state, and vid.

Referenced by R_Bloom_MakeTexture(), R_DrawDebugModel(), R_DrawEntityBBoxes_Callback(), R_DrawExplosion_TransparentCallback(), R_DrawLoc_Callback(), R_DrawModelDecals_Entity(), R_DrawNoModel_TransparentCallback(), R_DrawParticle_TransparentCallback(), R_DrawPortal_Callback(), R_Mod_DrawShadowMap(), R_ResetViewRendering2D_Common(), R_ResetViewRendering3D(), R_Shadow_ClearShadowMapTexture(), R_Shadow_DrawCoronas(), R_Shadow_DrawWorldShadow_ShadowMap(), R_Shadow_RenderMode_DrawDeferredLight(), R_Shadow_RenderMode_Reset(), R_Shadow_RenderMode_ShadowMap(), and RSurf_SetupDepthAndCulling().

GL_DebugOutputCallback()

static void GLAPIENTRY GL_DebugOutputCallback ( GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length, const GLchar * message, const GLvoid * userParam )

static

Definition at line 80 of file gl_backend.c.

{
    const char *sev = "ENUM?", *typ = "ENUM?", *src = "ENUM?", *col = "";
    switch (severity)
    {
    case GL_DEBUG_SEVERITY_LOW_ARB: sev = "LOW"; break;
    case GL_DEBUG_SEVERITY_MEDIUM_ARB: sev = "MED"; col = CON_WARN; break;
    case GL_DEBUG_SEVERITY_HIGH_ARB: sev = "HIGH"; col = CON_ERROR; break;
    }
    switch (type)
    {
    case GL_DEBUG_TYPE_ERROR_ARB: typ = "ERROR"; col = CON_ERROR; break;
    case GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR_ARB: typ = "DEPRECATED"; break;
    case GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR_ARB: typ = "UNDEFINED"; break;
    case GL_DEBUG_TYPE_PORTABILITY_ARB: typ = "PORTABILITY"; break;
    case GL_DEBUG_TYPE_PERFORMANCE_ARB: typ = "PERFORMANCE"; break;
    case GL_DEBUG_TYPE_OTHER_ARB: typ = "OTHER"; break;
    }
    switch (source)
    {
    case GL_DEBUG_SOURCE_API_ARB: src = "API"; break;
    case GL_DEBUG_SOURCE_SHADER_COMPILER_ARB: src = "SHADER"; break;
    case GL_DEBUG_SOURCE_WINDOW_SYSTEM_ARB: src = "WIN"; break;
    case GL_DEBUG_SOURCE_THIRD_PARTY_ARB: src = "THIRDPARTY"; break;
    case GL_DEBUG_SOURCE_APPLICATION_ARB: src = "APP"; break;
    case GL_DEBUG_SOURCE_OTHER_ARB: src = "OTHER"; break;
    }
    Con_Printf("gl_debug: %s%s %s %s: %u: %s\n", col, sev, typ, src, (unsigned int)id, message);
}

References CON_ERROR, Con_Printf(), CON_WARN, GL_DEBUG_SEVERITY_HIGH_ARB, GL_DEBUG_SEVERITY_LOW_ARB, GL_DEBUG_SEVERITY_MEDIUM_ARB, GL_DEBUG_SOURCE_API_ARB, GL_DEBUG_SOURCE_APPLICATION_ARB, GL_DEBUG_SOURCE_OTHER_ARB, GL_DEBUG_SOURCE_SHADER_COMPILER_ARB, GL_DEBUG_SOURCE_THIRD_PARTY_ARB, GL_DEBUG_SOURCE_WINDOW_SYSTEM_ARB, GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR_ARB, GL_DEBUG_TYPE_ERROR_ARB, GL_DEBUG_TYPE_OTHER_ARB, GL_DEBUG_TYPE_PERFORMANCE_ARB, GL_DEBUG_TYPE_PORTABILITY_ARB, GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR_ARB, message, severity, source, src, and type.

Referenced by GL_Backend_ResetState().

GL_DepthFunc()

void GL_DepthFunc

(

int

state

)

Definition at line 1234 of file gl_backend.c.

{
    if (gl_state.depthfunc != state)
    {
        gl_state.depthfunc = state;
        switch(vid.renderpath)
        {
        case RENDERPATH_GL32:
        case RENDERPATH_GLES2:
            CHECKGLERROR
            qglDepthFunc(gl_state.depthfunc);CHECKGLERROR
            break;
        }
    }
}

References CHECKGLERROR, gl_state_t::depthfunc, gl_state, viddef_t::renderpath, RENDERPATH_GL32, RENDERPATH_GLES2, and vid.

Referenced by R_BeginCoronaQuery(), R_ResetViewRendering2D_Common(), R_ResetViewRendering3D(), R_Shadow_RenderMode_DrawDeferredLight(), R_Shadow_RenderMode_Lighting(), R_Shadow_RenderMode_Reset(), and R_Shadow_RenderMode_VisibleLighting().

GL_DepthMask()

void GL_DepthMask

(

int

state

)

Definition at line 1195 of file gl_backend.c.

{
    if (gl_state.depthmask != state)
    {
        gl_state.depthmask = state;
        switch(vid.renderpath)
        {
        case RENDERPATH_GL32:
        case RENDERPATH_GLES2:
            CHECKGLERROR
            qglDepthMask(gl_state.depthmask);CHECKGLERROR
            break;
        }
    }
}

References CHECKGLERROR, gl_state_t::depthmask, gl_state, viddef_t::renderpath, RENDERPATH_GL32, RENDERPATH_GLES2, and vid.

Referenced by CL_UpdateScreen(), DrawQ_FlushUI(), R_DrawBBoxMesh(), R_DrawDebugModel(), R_DrawExplosion_TransparentCallback(), R_DrawLoc_Callback(), R_DrawModelDecals_Entity(), R_DrawNoModel_TransparentCallback(), R_DrawParticle_TransparentCallback(), R_DrawPortal_Callback(), R_DrawSurface_TransparentCallback(), R_DrawTextureSurfaceList_GL20(), R_DrawTextureSurfaceList_ShowSurfaces(), R_DrawTextureSurfaceList_Sky(), R_Mod_DrawDepth(), R_ResetViewRendering2D_Common(), R_ResetViewRendering3D(), R_Shadow_ClearShadowMapTexture(), R_Shadow_DrawCoronas(), R_Shadow_DrawPrepass(), R_Shadow_RenderMode_Begin(), R_Shadow_RenderMode_DrawDeferredLight(), R_Shadow_RenderMode_End(), R_Shadow_RenderMode_Reset(), and R_Shadow_RenderMode_ShadowMap().

GL_DepthRange()

void GL_DepthRange	(	float	nearfrac,
		float	farfrac )

Definition at line 1250 of file gl_backend.c.

{
    if (gl_state.depthrange[0] != nearfrac || gl_state.depthrange[1] != farfrac)
    {
        gl_state.depthrange[0] = nearfrac;
        gl_state.depthrange[1] = farfrac;
        switch(vid.renderpath)
        {
        case RENDERPATH_GL32:
        case RENDERPATH_GLES2:
            CHECKGLERROR
#ifdef USE_GLES2
            qglDepthRangef(gl_state.depthrange[0], gl_state.depthrange[1]);CHECKGLERROR
#else
            qglDepthRange(gl_state.depthrange[0], gl_state.depthrange[1]);CHECKGLERROR
#endif
            break;
        }
    }
}

References CHECKGLERROR, gl_state_t::depthrange, gl_state, viddef_t::renderpath, RENDERPATH_GL32, RENDERPATH_GLES2, and vid.

Referenced by R_DrawBBoxMesh(), R_DrawDebugModel(), R_DrawExplosion_TransparentCallback(), R_DrawLoc_Callback(), R_DrawModelDecals_Entity(), R_DrawNoModel_TransparentCallback(), R_DrawParticle_TransparentCallback(), R_DrawPortal_Callback(), R_ResetViewRendering2D_Common(), R_ResetViewRendering3D(), R_Shadow_DrawCoronas(), R_Shadow_RenderMode_Begin(), R_Shadow_RenderMode_DrawDeferredLight(), R_Shadow_RenderMode_Reset(), R_Shadow_RenderMode_VisibleLighting(), RSurf_SetupDepthAndCulling(), SCR_DrawLoadingScreen(), and SCR_DrawLoadingStack().

GL_DepthTest()

void GL_DepthTest

(

int

state

)

Definition at line 1211 of file gl_backend.c.

{
    if (gl_state.depthtest != state)
    {
        gl_state.depthtest = state;
        switch(vid.renderpath)
        {
        case RENDERPATH_GL32:
        case RENDERPATH_GLES2:
            CHECKGLERROR
            if (gl_state.depthtest)
            {
                qglEnable(GL_DEPTH_TEST);CHECKGLERROR
            }
            else
            {
                qglDisable(GL_DEPTH_TEST);CHECKGLERROR
            }
            break;
        }
    }
}

References CHECKGLERROR, gl_state_t::depthtest, GL_DEPTH_TEST, gl_state, viddef_t::renderpath, RENDERPATH_GL32, RENDERPATH_GLES2, and vid.

Referenced by R_Bloom_MakeTexture(), R_DrawDebugModel(), R_DrawEntityBBoxes_Callback(), R_DrawExplosion_TransparentCallback(), R_DrawLoc_Callback(), R_DrawModelDecals_Entity(), R_DrawNoModel_TransparentCallback(), R_DrawParticle_TransparentCallback(), R_DrawPortal_Callback(), R_DrawSurface_TransparentCallback(), R_Mod_DrawDepth(), R_ResetViewRendering2D_Common(), R_ResetViewRendering3D(), R_Shadow_ClearShadowMapTexture(), R_Shadow_DrawCoronas(), R_Shadow_DrawPrepass(), R_Shadow_RenderLighting(), R_Shadow_RenderMode_Begin(), R_Shadow_RenderMode_DrawDeferredLight(), R_Shadow_RenderMode_Reset(), R_Shadow_RenderMode_ShadowMap(), R_Shadow_RenderMode_VisibleLighting(), RSurf_SetupDepthAndCulling(), SCR_DrawLoadingScreen(), and SCR_DrawLoadingStack().

GL_Finish()

void GL_Finish

(

void

)

Definition at line 399 of file gl_backend.c.

{
    switch(vid.renderpath)
    {
    case RENDERPATH_GL32:
    case RENDERPATH_GLES2:
        CHECKGLERROR
        qglFinish();CHECKGLERROR
        break;
    }
}

References CHECKGLERROR, viddef_t::renderpath, RENDERPATH_GL32, RENDERPATH_GLES2, and vid.

Referenced by R_TimeReport(), and VID_Finish().

GL_Mesh_ListVBOs()

void GL_Mesh_ListVBOs

(

qbool

printeach

)

Definition at line 1952 of file gl_backend.c.

{
    int i, endindex;
    int type;
    int isdynamic;
    int index16count, index16mem;
    int index32count, index32mem;
    int vertexcount, vertexmem;
    int uniformcount, uniformmem;
    int totalcount, totalmem;
    size_t bufferstat[R_BUFFERDATA_COUNT][2][2];
    r_meshbuffer_t *buffer;
    memset(bufferstat, 0, sizeof(bufferstat));
    endindex = (int)Mem_ExpandableArray_IndexRange(&gl_state.meshbufferarray);
    for (i = 0;i < endindex;i++)
    {
        buffer = (r_meshbuffer_t *) Mem_ExpandableArray_RecordAtIndex(&gl_state.meshbufferarray, i);
        if (!buffer)
            continue;
        if (buffer->isuniformbuffer)
            type = R_BUFFERDATA_UNIFORM;
        else if (buffer->isindexbuffer && buffer->isindex16)
            type = R_BUFFERDATA_INDEX16;
        else if (buffer->isindexbuffer)
            type = R_BUFFERDATA_INDEX32;
        else
            type = R_BUFFERDATA_VERTEX;
        isdynamic = buffer->isdynamic;
        bufferstat[type][isdynamic][0]++;
        bufferstat[type][isdynamic][1] += buffer->size;
        if (printeach)
            Con_Printf("buffer #%i %s = %i bytes (%s %s)\n", i, buffer->name, (int)buffer->size, isdynamic ? "dynamic" : "static", buffertypename[type]);
    }
    index16count   = (int)(bufferstat[R_BUFFERDATA_INDEX16][0][0] + bufferstat[R_BUFFERDATA_INDEX16][1][0]);
    index16mem     = (int)(bufferstat[R_BUFFERDATA_INDEX16][0][1] + bufferstat[R_BUFFERDATA_INDEX16][1][1]);
    index32count   = (int)(bufferstat[R_BUFFERDATA_INDEX32][0][0] + bufferstat[R_BUFFERDATA_INDEX32][1][0]);
    index32mem     = (int)(bufferstat[R_BUFFERDATA_INDEX32][0][1] + bufferstat[R_BUFFERDATA_INDEX32][1][1]);
    vertexcount  = (int)(bufferstat[R_BUFFERDATA_VERTEX ][0][0] + bufferstat[R_BUFFERDATA_VERTEX ][1][0]);
    vertexmem    = (int)(bufferstat[R_BUFFERDATA_VERTEX ][0][1] + bufferstat[R_BUFFERDATA_VERTEX ][1][1]);
    uniformcount = (int)(bufferstat[R_BUFFERDATA_UNIFORM][0][0] + bufferstat[R_BUFFERDATA_UNIFORM][1][0]);
    uniformmem   = (int)(bufferstat[R_BUFFERDATA_UNIFORM][0][1] + bufferstat[R_BUFFERDATA_UNIFORM][1][1]);
    totalcount = index16count + index32count + vertexcount + uniformcount;
    totalmem = index16mem + index32mem + vertexmem + uniformmem;
    Con_Printf("%i 16bit indexbuffers totalling %i bytes (%.3f MB)\n%i 32bit indexbuffers totalling %i bytes (%.3f MB)\n%i vertexbuffers totalling %i bytes (%.3f MB)\n%i uniformbuffers totalling %i bytes (%.3f MB)\ncombined %i buffers totalling %i bytes (%.3fMB)\n", index16count, index16mem, index16mem / 10248576.0, index32count, index32mem, index32mem / 10248576.0, vertexcount, vertexmem, vertexmem / 10248576.0, uniformcount, uniformmem, uniformmem / 10248576.0, totalcount, totalmem, totalmem / 10248576.0);
}

References buffer, buffertypename, Con_Printf(), gl_state, i, int(), Mem_ExpandableArray_IndexRange(), Mem_ExpandableArray_RecordAtIndex(), gl_state_t::meshbufferarray, R_BUFFERDATA_COUNT, R_BUFFERDATA_INDEX16, R_BUFFERDATA_INDEX32, R_BUFFERDATA_UNIFORM, R_BUFFERDATA_VERTEX, and type.

Referenced by GL_VBOStats_f().

GL_PolygonOffset()

void GL_PolygonOffset	(	float	planeoffset,
		float	depthoffset )

Definition at line 1294 of file gl_backend.c.

{
    if (gl_state.polygonoffset[0] != planeoffset || gl_state.polygonoffset[1] != depthoffset)
    {
        gl_state.polygonoffset[0] = planeoffset;
        gl_state.polygonoffset[1] = depthoffset;
        switch(vid.renderpath)
        {
        case RENDERPATH_GL32:
        case RENDERPATH_GLES2:
            CHECKGLERROR
            qglPolygonOffset(gl_state.polygonoffset[0], gl_state.polygonoffset[1]);CHECKGLERROR
            break;
        }
    }
}

References CHECKGLERROR, gl_state, gl_state_t::polygonoffset, viddef_t::renderpath, RENDERPATH_GL32, RENDERPATH_GLES2, and vid.

Referenced by R_DrawBBoxMesh(), R_DrawDebugModel(), R_DrawExplosion_TransparentCallback(), R_DrawLoc_Callback(), R_DrawModelDecals_Entity(), R_DrawNoModel_TransparentCallback(), R_DrawParticle_TransparentCallback(), R_DrawPortal_Callback(), R_ResetViewRendering2D_Common(), R_ResetViewRendering3D(), R_Shadow_ClearShadowMapTexture(), R_Shadow_DrawCoronas(), R_Shadow_RenderMode_Begin(), R_Shadow_RenderMode_DrawDeferredLight(), R_Shadow_RenderMode_Reset(), R_Shadow_RenderMode_ShadowMap(), RSurf_SetupDepthAndCulling(), SCR_DrawLoadingScreen(), and SCR_DrawLoadingStack().

GL_ReadPixelsBGRA()

void GL_ReadPixelsBGRA	(	int	x,
		int	y,
		int	width,
		int	height,
		unsigned char *	outpixels )

Definition at line 1509 of file gl_backend.c.

{
    switch(vid.renderpath)
    {
    case RENDERPATH_GL32:
        CHECKGLERROR
        qglReadPixels(x, y, width, height, GL_BGRA, GL_UNSIGNED_BYTE, outpixels);CHECKGLERROR
        break;
    case RENDERPATH_GLES2: // glReadPixels() lacks GL_BGRA support (even in ES 3.2)
        CHECKGLERROR
        {
            int i;
            int r;
        //  int g;
            int b;
        //  int a;
            qglReadPixels(x, y, width, height, GL_RGBA, GL_UNSIGNED_BYTE, outpixels);CHECKGLERROR
            for (i = 0;i < width * height * 4;i += 4)
            {
                r = outpixels[i+0];
        //      g = outpixels[i+1];
                b = outpixels[i+2];
        //      a = outpixels[i+3];
                outpixels[i+0] = b;
        //      outpixels[i+1] = g;
                outpixels[i+2] = r;
        //      outpixels[i+3] = a;
            }
        }
        break;
    }
}

References b, CHECKGLERROR, GL_BGRA, GL_RGBA, GL_UNSIGNED_BYTE, height, i, r, viddef_t::renderpath, RENDERPATH_GL32, RENDERPATH_GLES2, vid, width, x, and y.

Referenced by SCR_ScreenShot().

GL_Scissor()

void GL_Scissor	(	int	x,
		int	y,
		int	width,
		int	height )

Definition at line 1439 of file gl_backend.c.

{
    switch(vid.renderpath)
    {
    case RENDERPATH_GL32:
    case RENDERPATH_GLES2:
        CHECKGLERROR
        qglScissor(x, y,width,height);CHECKGLERROR
        break;
    }
}

References CHECKGLERROR, height, viddef_t::renderpath, RENDERPATH_GL32, RENDERPATH_GLES2, vid, width, x, and y.

Referenced by DrawQ_SetClipArea(), R_RenderView(), R_ResetViewRendering2D_Common(), R_ResetViewRendering3D(), R_Shadow_ClearShadowMapTexture(), R_Shadow_DrawModelShadowMaps(), R_Shadow_RenderMode_Begin(), R_Shadow_RenderMode_End(), R_Shadow_RenderMode_Reset(), R_Shadow_RenderMode_ShadowMap(), R_Sky(), and R_Water_ProcessPlanes().

GL_ScissorTest()

void GL_ScissorTest

(

int

state

)

Definition at line 1451 of file gl_backend.c.

{
    if (gl_state.scissortest != state)
    {
        gl_state.scissortest = state;
        switch(vid.renderpath)
        {
        case RENDERPATH_GL32:
        case RENDERPATH_GLES2:
            CHECKGLERROR
            if(gl_state.scissortest)
                qglEnable(GL_SCISSOR_TEST);
            else
                qglDisable(GL_SCISSOR_TEST);
            CHECKGLERROR
            break;
        }
    }
}

References CHECKGLERROR, GL_SCISSOR_TEST, gl_state, viddef_t::renderpath, RENDERPATH_GL32, RENDERPATH_GLES2, gl_state_t::scissortest, and vid.

Referenced by CL_UpdateScreen(), DrawQ_ResetClipArea(), DrawQ_SetClipArea(), R_RenderView(), R_ResetViewRendering2D_Common(), R_ResetViewRendering3D(), R_Sky(), and R_Water_ProcessPlanes().

GL_SetMirrorState()

void GL_SetMirrorState

(

qbool

state

)

Definition at line 1311 of file gl_backend.c.

{
    if (v_flipped_state != state)
    {
        v_flipped_state = state;
        if (gl_state.cullface == GL_BACK)
            gl_state.cullface = GL_FRONT;
        else if (gl_state.cullface == GL_FRONT)
            gl_state.cullface = GL_BACK;
        else
            return;
        switch(vid.renderpath)
        {
        case RENDERPATH_GL32:
        case RENDERPATH_GLES2:
            CHECKGLERROR
            qglCullFace(gl_state.cullface);CHECKGLERROR
            break;
        }
    }
}

References CHECKGLERROR, gl_state_t::cullface, GL_BACK, GL_FRONT, gl_state, viddef_t::renderpath, RENDERPATH_GL32, RENDERPATH_GLES2, v_flipped_state, and vid.

Referenced by R_SetViewport().

GL_VBOStats_f()

static void GL_VBOStats_f ( cmd_state_t * cmd )

static

Definition at line 245 of file gl_backend.c.

{
    GL_Mesh_ListVBOs(true);
}

References GL_Mesh_ListVBOs().

Referenced by gl_backend_init().

R_GetViewport()

void R_GetViewport

(

r_viewport_t *

v

)

Definition at line 922 of file gl_backend.c.

{
    *v = gl_viewport;
}

References gl_viewport, and v.

R_Mesh_ClearBindingsForTexture()

void R_Mesh_ClearBindingsForTexture

(

int

texnum

)

Definition at line 2151 of file gl_backend.c.

{
    gltextureunit_t *unit;
    unsigned int unitnum;
    // unbind the texture from any units it is bound on - this prevents accidental reuse of certain textures whose bindings can linger far too long otherwise (e.g. bouncegrid which is a 3D texture) and confuse the driver later.
    for (unitnum = 0; unitnum < MAX_TEXTUREUNITS; unitnum++)
    {
        unit = gl_state.units + unitnum;
        if (unit->texture && unit->texture->texnum == texnum)
            R_Mesh_TexBind(unitnum, NULL);
    }
}

References gl_state, MAX_TEXTUREUNITS, NULL, R_Mesh_TexBind(), rtexture_t::texnum, gltextureunit_t::texture, and gl_state_t::units.

Referenced by R_FreeTexture().

R_Mesh_ColorPointer()

void R_Mesh_ColorPointer	(	int	components,
		int	gltype,
		size_t	stride,
		const void *	pointer,
		const r_meshbuffer_t *	vertexbuffer,
		size_t	bufferoffset )

Definition at line 2026 of file gl_backend.c.

{
    // note: vertexbuffer may be non-NULL even if pointer is NULL, so check
    // the pointer only.
    switch(vid.renderpath)
    {
    case RENDERPATH_GL32:
    case RENDERPATH_GLES2:
        CHECKGLERROR
        if (pointer)
        {
            // caller wants color array enabled
            int bufferobject = vertexbuffer ? vertexbuffer->bufferobject : 0;
            if (!gl_state.pointer_color_enabled)
            {
                gl_state.pointer_color_enabled = true;
                CHECKGLERROR
                qglEnableVertexAttribArray(GLSLATTRIB_COLOR);CHECKGLERROR
            }
            if (gl_state.pointer_color_components != components || gl_state.pointer_color_gltype != gltype || gl_state.pointer_color_stride != stride || gl_state.pointer_color_pointer != pointer || gl_state.pointer_color_vertexbuffer != vertexbuffer || gl_state.pointer_color_offset != bufferoffset)
            {
                gl_state.pointer_color_components = components;
                gl_state.pointer_color_gltype = gltype;
                gl_state.pointer_color_stride = stride;
                gl_state.pointer_color_pointer = pointer;
                gl_state.pointer_color_vertexbuffer = vertexbuffer;
                gl_state.pointer_color_offset = bufferoffset;
                CHECKGLERROR
                GL_BindVBO(bufferobject);
                // LadyHavoc: special flag added to gltype for unnormalized types
                qglVertexAttribPointer(GLSLATTRIB_COLOR, components, gltype & ~0x80000000, (gltype & 0x80000000) == 0, (GLsizei)stride, bufferobject ? (void *)bufferoffset : pointer);CHECKGLERROR
            }
        }
        else
        {
            // caller wants color array disabled
            if (gl_state.pointer_color_enabled)
            {
                gl_state.pointer_color_enabled = false;
                CHECKGLERROR
                qglDisableVertexAttribArray(GLSLATTRIB_COLOR);CHECKGLERROR
                // when color array is on the current color gets trashed, set it again
                qglVertexAttrib4f(GLSLATTRIB_COLOR, gl_state.color4f[0], gl_state.color4f[1], gl_state.color4f[2], gl_state.color4f[3]);CHECKGLERROR
            }
        }
        break;
    }
}

References r_meshbuffer_t::bufferobject, CHECKGLERROR, gl_state_t::color4f, GL_BindVBO(), gl_state, GLSLATTRIB_COLOR, pointer, gl_state_t::pointer_color_components, gl_state_t::pointer_color_enabled, gl_state_t::pointer_color_gltype, gl_state_t::pointer_color_offset, gl_state_t::pointer_color_pointer, gl_state_t::pointer_color_stride, gl_state_t::pointer_color_vertexbuffer, viddef_t::renderpath, RENDERPATH_GL32, RENDERPATH_GLES2, stride, and vid.

Referenced by R_Mesh_PrepareVertices_Generic_Arrays(), R_Mesh_PrepareVertices_Mesh_Arrays(), R_Mesh_PrepareVertices_Vertex3f(), and RSurf_UploadBuffersForBatch().

R_Mesh_CopyToTexture()

void R_Mesh_CopyToTexture	(	rtexture_t *	tex,
		int	tx,
		int	ty,
		int	sx,
		int	sy,
		int	width,
		int	height )

Definition at line 2138 of file gl_backend.c.

{
    switch(vid.renderpath)
    {
    case RENDERPATH_GL32:
    case RENDERPATH_GLES2:
        R_Mesh_TexBind(0, tex);
        GL_ActiveTexture(0);CHECKGLERROR
        qglCopyTexSubImage2D(GL_TEXTURE_2D, 0, tx, ty, sx, sy, width, height);CHECKGLERROR
        break;
    }
}

References CHECKGLERROR, GL_ActiveTexture(), GL_TEXTURE_2D, height, R_Mesh_TexBind(), viddef_t::renderpath, RENDERPATH_GL32, RENDERPATH_GLES2, vid, and width.

Referenced by R_MotionBlurView(), and SCR_SetLoadingScreenTexture().

R_Mesh_CreateFramebufferObject()

int R_Mesh_CreateFramebufferObject	(	rtexture_t *	depthtexture,
		rtexture_t *	colortexture,
		rtexture_t *	colortexture2,
		rtexture_t *	colortexture3,
		rtexture_t *	colortexture4 )

Definition at line 960 of file gl_backend.c.

{
    int temp;
    GLuint status;
    switch(vid.renderpath)
    {
    case RENDERPATH_GL32:
    case RENDERPATH_GLES2:
        CHECKGLERROR
        qglGenFramebuffers(1, (GLuint*)&temp);CHECKGLERROR
 
#ifndef USE_GLES2
        R_Mesh_SetRenderTargets(temp);  // This breaks GLES2.
        // GL_ARB_framebuffer_object (GL3-class hardware) - depth stencil attachment
#endif
 
#ifdef USE_GLES2
        // FIXME: separate stencil attachment on GLES
        if (depthtexture  && depthtexture->texnum ) { qglFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT  , depthtexture->gltexturetypeenum , depthtexture->texnum , 0);CHECKGLERROR }
        if (depthtexture  && depthtexture->renderbuffernum ) { qglFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT  , GL_RENDERBUFFER, depthtexture->renderbuffernum );CHECKGLERROR }
#else
        if (depthtexture  && depthtexture->texnum )
        {
            qglFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT  , depthtexture->gltexturetypeenum , depthtexture->texnum , 0);CHECKGLERROR
            if (depthtexture->glisdepthstencil) { qglFramebufferTexture2D(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT  , depthtexture->gltexturetypeenum , depthtexture->texnum , 0);CHECKGLERROR }
        }
        if (depthtexture  && depthtexture->renderbuffernum )
        {
            qglFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT  , GL_RENDERBUFFER, depthtexture->renderbuffernum );CHECKGLERROR
            if (depthtexture->glisdepthstencil) { qglFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_STENCIL_ATTACHMENT  , GL_RENDERBUFFER, depthtexture->renderbuffernum );CHECKGLERROR }
        }
#endif
 
        if (colortexture  && colortexture->texnum ) { qglFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 , colortexture->gltexturetypeenum , colortexture->texnum , 0);CHECKGLERROR }
        if (colortexture2 && colortexture2->texnum) { qglFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT1 , colortexture2->gltexturetypeenum, colortexture2->texnum, 0);CHECKGLERROR }
        if (colortexture3 && colortexture3->texnum) { qglFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT2 , colortexture3->gltexturetypeenum, colortexture3->texnum, 0);CHECKGLERROR }
        if (colortexture4 && colortexture4->texnum) { qglFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT3 , colortexture4->gltexturetypeenum, colortexture4->texnum, 0);CHECKGLERROR }
        if (colortexture  && colortexture->renderbuffernum ) { qglFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0 , GL_RENDERBUFFER, colortexture->renderbuffernum );CHECKGLERROR }
        if (colortexture2 && colortexture2->renderbuffernum) { qglFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT1 , GL_RENDERBUFFER, colortexture2->renderbuffernum);CHECKGLERROR }
        if (colortexture3 && colortexture3->renderbuffernum) { qglFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT2 , GL_RENDERBUFFER, colortexture3->renderbuffernum);CHECKGLERROR }
        if (colortexture4 && colortexture4->renderbuffernum) { qglFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT3 , GL_RENDERBUFFER, colortexture4->renderbuffernum);CHECKGLERROR }
 
#ifndef USE_GLES2
        if (colortexture4)
        {
            qglDrawBuffers(4, drawbuffers);CHECKGLERROR
            qglReadBuffer(GL_NONE);CHECKGLERROR
        }
        else if (colortexture3)
        {
            qglDrawBuffers(3, drawbuffers);CHECKGLERROR
            qglReadBuffer(GL_NONE);CHECKGLERROR
        }
        else if (colortexture2)
        {
            qglDrawBuffers(2, drawbuffers);CHECKGLERROR
            qglReadBuffer(GL_NONE);CHECKGLERROR
        }
        else if (colortexture)
        {
            qglDrawBuffer(GL_COLOR_ATTACHMENT0);CHECKGLERROR
            qglReadBuffer(GL_COLOR_ATTACHMENT0);CHECKGLERROR
        }
        else
        {
            qglDrawBuffer(GL_NONE);CHECKGLERROR
            qglReadBuffer(GL_NONE);CHECKGLERROR
        }
#endif
        status = qglCheckFramebufferStatus(GL_FRAMEBUFFER);CHECKGLERROR
        if (status != GL_FRAMEBUFFER_COMPLETE)
        {
            Con_Printf(CON_ERROR "R_Mesh_CreateFramebufferObject: glCheckFramebufferStatus returned %i\n", status);
            gl_state.framebufferobject = 0; // GL unbinds it for us
            qglDeleteFramebuffers(1, (GLuint*)&temp);CHECKGLERROR
            temp = 0;
        }
        return temp;
    }
    return 0;
}

References CHECKGLERROR, CON_ERROR, Con_Printf(), drawbuffers, gl_state_t::framebufferobject, GL_COLOR_ATTACHMENT0, GL_COLOR_ATTACHMENT1, GL_COLOR_ATTACHMENT2, GL_COLOR_ATTACHMENT3, GL_DEPTH_ATTACHMENT, GL_FRAMEBUFFER, GL_FRAMEBUFFER_COMPLETE, GL_NONE, GL_RENDERBUFFER, gl_state, GL_STENCIL_ATTACHMENT, rtexture_t::glisdepthstencil, rtexture_t::gltexturetypeenum, R_Mesh_SetRenderTargets(), rtexture_t::renderbuffernum, viddef_t::renderpath, RENDERPATH_GL32, RENDERPATH_GLES2, rtexture_t::texnum, and vid.

Referenced by R_RenderTarget_Get(), R_Shadow_MakeShadowMap(), and R_Shadow_PrepareLights().

R_Mesh_CreateMeshBuffer()

r_meshbuffer_t * R_Mesh_CreateMeshBuffer	(	const void *	data,
		size_t	size,
		const char *	name,
		qbool	isindexbuffer,
		qbool	isuniformbuffer,
		qbool	isdynamic,
		qbool	isindex16 )

Definition at line 1862 of file gl_backend.c.

{
    r_meshbuffer_t *buffer;
    buffer = (r_meshbuffer_t *)Mem_ExpandableArray_AllocRecord(&gl_state.meshbufferarray);
    memset(buffer, 0, sizeof(*buffer));
    buffer->bufferobject = 0;
    buffer->devicebuffer = NULL;
    buffer->size = size;
    buffer->isindexbuffer = isindexbuffer;
    buffer->isuniformbuffer = isuniformbuffer;
    buffer->isdynamic = isdynamic;
    buffer->isindex16 = isindex16;
    dp_strlcpy(buffer->name, name, sizeof(buffer->name));
    R_Mesh_UpdateMeshBuffer(buffer, data, size, false, 0);
    return buffer;
}

References buffer, data, dp_strlcpy, gl_state, Mem_ExpandableArray_AllocRecord(), gl_state_t::meshbufferarray, name, NULL, R_Mesh_UpdateMeshBuffer(), and size.

Referenced by Mod_BuildVBOs(), Mod_ShadowMesh_CreateVBOs(), and R_BufferData_Resize().

R_Mesh_DestroyFramebufferObject()

void R_Mesh_DestroyFramebufferObject

(

int

fbo

)

Definition at line 1042 of file gl_backend.c.

{
    switch(vid.renderpath)
    {
    case RENDERPATH_GL32:
    case RENDERPATH_GLES2:
        if (fbo)
        {
            // GL clears the binding if we delete something bound
            if (gl_state.framebufferobject == fbo)
                gl_state.framebufferobject = 0;
            qglDeleteFramebuffers(1, (GLuint*)&fbo);CHECKGLERROR
        }
        break;
    }
}

References CHECKGLERROR, gl_state_t::framebufferobject, gl_state, viddef_t::renderpath, RENDERPATH_GL32, RENDERPATH_GLES2, and vid.

Referenced by R_RenderTarget_FreeUnused(), R_Shadow_FreeDeferred(), and R_Shadow_FreeShadowMaps().

R_Mesh_DestroyMeshBuffer()

void R_Mesh_DestroyMeshBuffer

(

r_meshbuffer_t *

buffer

)

Definition at line 1929 of file gl_backend.c.

{
    if (!buffer)
        return;
    switch(vid.renderpath)
    {
    case RENDERPATH_GL32:
    case RENDERPATH_GLES2:
        // GL clears the binding if we delete something bound
        if (gl_state.uniformbufferobject == buffer->bufferobject)
            gl_state.uniformbufferobject = 0;
        if (gl_state.vertexbufferobject == buffer->bufferobject)
            gl_state.vertexbufferobject = 0;
        if (gl_state.elementbufferobject == buffer->bufferobject)
            gl_state.elementbufferobject = 0;
        CHECKGLERROR
        qglDeleteBuffers(1, (GLuint *)&buffer->bufferobject);CHECKGLERROR
        break;
    }
    Mem_ExpandableArray_FreeRecord(&gl_state.meshbufferarray, (void *)buffer);
}

References buffer, CHECKGLERROR, gl_state_t::elementbufferobject, gl_state, Mem_ExpandableArray_FreeRecord(), gl_state_t::meshbufferarray, viddef_t::renderpath, RENDERPATH_GL32, RENDERPATH_GLES2, gl_state_t::uniformbufferobject, gl_state_t::vertexbufferobject, and vid.

Referenced by Mod_GenerateLightmaps_UnweldTriangles(), Mod_ShadowMesh_Free(), Mod_UnloadModel(), R_BufferData_NewFrame(), and R_BufferData_Reset().

R_Mesh_Draw()

void R_Mesh_Draw	(	int	firstvertex,
		int	numvertices,
		int	firsttriangle,
		int	numtriangles,
		const int *	element3i,
		const r_meshbuffer_t *	element3i_indexbuffer,
		int	element3i_bufferoffset,
		const unsigned short *	element3s,
		const r_meshbuffer_t *	element3s_indexbuffer,
		int	element3s_bufferoffset )

Definition at line 1764 of file gl_backend.c.

{
    unsigned int numelements = numtriangles * 3;
    int bufferobject3i;
    size_t bufferoffset3i;
    int bufferobject3s;
    size_t bufferoffset3s;
    if (numvertices < 3 || numtriangles < 1)
    {
        if (numvertices < 0 || numtriangles < 0 || developer_extra.integer)
            Con_DPrintf("R_Mesh_Draw(%d, %d, %d, %d, %8p, %8p, %8x, %8p, %8p, %8x);\n", firstvertex, numvertices, firsttriangle, numtriangles, (void *)element3i, (void *)element3i_indexbuffer, (int)element3i_bufferoffset, (void *)element3s, (void *)element3s_indexbuffer, (int)element3s_bufferoffset);
        return;
    }
    // adjust the pointers for firsttriangle
    if (element3i)
        element3i += firsttriangle * 3;
    if (element3i_indexbuffer)
        element3i_bufferoffset += firsttriangle * 3 * sizeof(*element3i);
    if (element3s)
        element3s += firsttriangle * 3;
    if (element3s_indexbuffer)
        element3s_bufferoffset += firsttriangle * 3 * sizeof(*element3s);
    // upload a dynamic index buffer if needed
    if (element3s)
    {
        if (!element3s_indexbuffer)
            element3s_indexbuffer = R_BufferData_Store(numelements * sizeof(*element3s), (void *)element3s, R_BUFFERDATA_INDEX16, &element3s_bufferoffset);
    }
    else if (element3i)
    {
        if (!element3i_indexbuffer)
            element3i_indexbuffer = R_BufferData_Store(numelements * sizeof(*element3i), (void *)element3i, R_BUFFERDATA_INDEX32, &element3i_bufferoffset);
    }
    bufferobject3i = element3i_indexbuffer ? element3i_indexbuffer->bufferobject : 0;
    bufferoffset3i = element3i_bufferoffset;
    bufferobject3s = element3s_indexbuffer ? element3s_indexbuffer->bufferobject : 0;
    bufferoffset3s = element3s_bufferoffset;
    r_refdef.stats[r_stat_draws]++;
    r_refdef.stats[r_stat_draws_vertices] += numvertices;
    r_refdef.stats[r_stat_draws_elements] += numelements;
    if (gl_paranoid.integer)
    {
        unsigned int i;
        if (element3i)
        {
            for (i = 0;i < (unsigned int) numtriangles * 3;i++)
            {
                if (element3i[i] < firstvertex || element3i[i] >= firstvertex + numvertices)
                {
                    Con_Printf(CON_WARN "R_Mesh_Draw: invalid vertex index %i (outside range %i - %i) in element3i array\n", element3i[i], firstvertex, firstvertex + numvertices);
                    return;
                }
            }
        }
        if (element3s)
        {
            for (i = 0;i < (unsigned int) numtriangles * 3;i++)
            {
                if (element3s[i] < firstvertex || element3s[i] >= firstvertex + numvertices)
                {
                    Con_Printf(CON_WARN "R_Mesh_Draw: invalid vertex index %i (outside range %i - %i) in element3s array\n", element3s[i], firstvertex, firstvertex + numvertices);
                    return;
                }
            }
        }
    }
    if (r_render.integer || r_refdef.draw2dstage)
    {
        switch(vid.renderpath)
        {
        case RENDERPATH_GL32:
        case RENDERPATH_GLES2:
            CHECKGLERROR
            if (bufferobject3s)
            {
                GL_BindEBO(bufferobject3s);
                qglDrawElements(GL_TRIANGLES, numelements, GL_UNSIGNED_SHORT, (void *)bufferoffset3s);CHECKGLERROR
            }
            else if (bufferobject3i)
            {
                GL_BindEBO(bufferobject3i);
                qglDrawElements(GL_TRIANGLES, numelements, GL_UNSIGNED_INT, (void *)bufferoffset3i);CHECKGLERROR
            }
            else
            {
                qglDrawArrays(GL_TRIANGLES, firstvertex, numvertices);CHECKGLERROR
            }
            break;
        }
    }
}

References r_meshbuffer_t::bufferobject, CHECKGLERROR, Con_DPrintf(), Con_Printf(), CON_WARN, developer_extra, r_refdef_t::draw2dstage, GL_BindEBO(), gl_paranoid, GL_TRIANGLES, GL_UNSIGNED_INT, GL_UNSIGNED_SHORT, i, int(), cvar_t::integer, R_BUFFERDATA_INDEX16, R_BUFFERDATA_INDEX32, R_BufferData_Store(), r_refdef, r_render, r_stat_draws, r_stat_draws_elements, r_stat_draws_vertices, viddef_t::renderpath, RENDERPATH_GL32, RENDERPATH_GLES2, r_refdef_t::stats, and vid.

Referenced by R_BeginCoronaQuery(), R_BlendView(), R_Bloom_MakeTexture(), R_DrawBBoxMesh(), R_DrawDebugModel(), R_DrawExplosion_TransparentCallback(), R_DrawLoc_Callback(), R_DrawModelDecals_Entity(), R_DrawNoModel_TransparentCallback(), R_DrawParticle_TransparentCallback(), R_DrawPortal_Callback(), R_MotionBlurView(), R_Shadow_DrawWorldShadow_ShadowMap(), R_Shadow_RenderMode_DrawDeferredLight(), RSurf_DrawBatch(), SCR_DrawLoadingScreen(), and SCR_DrawLoadingStack().

R_Mesh_Finish()

void R_Mesh_Finish

(

void

)

Definition at line 1857 of file gl_backend.c.

{
    R_Mesh_SetRenderTargets(0);
}

References R_Mesh_SetRenderTargets().

Referenced by R_Envmap_f(), and SCR_DrawScreen().

R_Mesh_PrepareVertices_Generic_Arrays()

void R_Mesh_PrepareVertices_Generic_Arrays	(	int	numvertices,
		const float *	vertex3f,
		const float *	color4f,
		const float *	texcoord2f )

Definition at line 2235 of file gl_backend.c.

{
    r_meshbuffer_t *buffer_vertex3f = NULL;
    r_meshbuffer_t *buffer_color4f = NULL;
    r_meshbuffer_t *buffer_texcoord2f = NULL;
    int bufferoffset_vertex3f = 0;
    int bufferoffset_color4f = 0;
    int bufferoffset_texcoord2f = 0;
    if (color4f)
        buffer_color4f    = R_BufferData_Store(numvertices * sizeof(float[4]), color4f   , R_BUFFERDATA_VERTEX, &bufferoffset_color4f   );
    if (vertex3f)
        buffer_vertex3f   = R_BufferData_Store(numvertices * sizeof(float[3]), vertex3f  , R_BUFFERDATA_VERTEX, &bufferoffset_vertex3f  );
    if (texcoord2f)
        buffer_texcoord2f = R_BufferData_Store(numvertices * sizeof(float[2]), texcoord2f, R_BUFFERDATA_VERTEX, &bufferoffset_texcoord2f);
    R_Mesh_VertexPointer(     3, GL_FLOAT        , sizeof(float[3])        , vertex3f          , buffer_vertex3f          , bufferoffset_vertex3f          );
    R_Mesh_ColorPointer(      4, GL_FLOAT        , sizeof(float[4])        , color4f           , buffer_color4f           , bufferoffset_color4f           );
    R_Mesh_TexCoordPointer(0, 2, GL_FLOAT        , sizeof(float[2])        , texcoord2f        , buffer_texcoord2f        , bufferoffset_texcoord2f        );
    R_Mesh_TexCoordPointer(1, 3, GL_FLOAT        , sizeof(float[3])        , NULL              , NULL                     , 0                              );
    R_Mesh_TexCoordPointer(2, 3, GL_FLOAT        , sizeof(float[3])        , NULL              , NULL                     , 0                              );
    R_Mesh_TexCoordPointer(3, 3, GL_FLOAT        , sizeof(float[3])        , NULL              , NULL                     , 0                              );
    R_Mesh_TexCoordPointer(4, 2, GL_FLOAT        , sizeof(float[2])        , NULL              , NULL                     , 0                              );
    R_Mesh_TexCoordPointer(5, 2, GL_FLOAT        , sizeof(float[2])        , NULL              , NULL                     , 0                              );
    R_Mesh_TexCoordPointer(6, 4, GL_UNSIGNED_BYTE, sizeof(unsigned char[4]), NULL              , NULL                     , 0                              );
    R_Mesh_TexCoordPointer(7, 4, GL_UNSIGNED_BYTE, sizeof(unsigned char[4]), NULL              , NULL                     , 0                              );
}

References GL_FLOAT, GL_UNSIGNED_BYTE, NULL, R_BufferData_Store(), R_BUFFERDATA_VERTEX, R_Mesh_ColorPointer(), R_Mesh_TexCoordPointer(), and R_Mesh_VertexPointer().

Referenced by R_Bloom_MakeTexture(), R_DrawBBoxMesh(), R_DrawDebugModel(), R_DrawExplosion_TransparentCallback(), R_DrawLoc_Callback(), R_DrawModelDecals_Entity(), R_DrawNoModel_TransparentCallback(), R_DrawParticle_TransparentCallback(), R_DrawPortal_Callback(), R_DrawTextureSurfaceList_ShowSurfaces(), R_DrawTextureSurfaceList_Sky(), R_MotionBlurView(), R_Shadow_RenderLighting_VisibleLighting(), SCR_DrawLoadingScreen(), and SCR_DrawLoadingStack().

R_Mesh_PrepareVertices_Mesh_Arrays()

void R_Mesh_PrepareVertices_Mesh_Arrays	(	int	numvertices,
		const float *	vertex3f,
		const float *	svector3f,
		const float *	tvector3f,
		const float *	normal3f,
		const float *	color4f,
		const float *	texcoordtexture2f,
		const float *	texcoordlightmap2f )

Definition at line 2261 of file gl_backend.c.

{
    r_meshbuffer_t *buffer_vertex3f = NULL;
    r_meshbuffer_t *buffer_color4f = NULL;
    r_meshbuffer_t *buffer_texcoordtexture2f = NULL;
    r_meshbuffer_t *buffer_svector3f = NULL;
    r_meshbuffer_t *buffer_tvector3f = NULL;
    r_meshbuffer_t *buffer_normal3f = NULL;
    r_meshbuffer_t *buffer_texcoordlightmap2f = NULL;
    int bufferoffset_vertex3f = 0;
    int bufferoffset_color4f = 0;
    int bufferoffset_texcoordtexture2f = 0;
    int bufferoffset_svector3f = 0;
    int bufferoffset_tvector3f = 0;
    int bufferoffset_normal3f = 0;
    int bufferoffset_texcoordlightmap2f = 0;
    if (color4f)
        buffer_color4f            = R_BufferData_Store(numvertices * sizeof(float[4]), color4f           , R_BUFFERDATA_VERTEX, &bufferoffset_color4f           );
    if (vertex3f)
        buffer_vertex3f           = R_BufferData_Store(numvertices * sizeof(float[3]), vertex3f          , R_BUFFERDATA_VERTEX, &bufferoffset_vertex3f          );
    if (svector3f)
        buffer_svector3f          = R_BufferData_Store(numvertices * sizeof(float[3]), svector3f         , R_BUFFERDATA_VERTEX, &bufferoffset_svector3f         );
    if (tvector3f)
        buffer_tvector3f          = R_BufferData_Store(numvertices * sizeof(float[3]), tvector3f         , R_BUFFERDATA_VERTEX, &bufferoffset_tvector3f         );
    if (normal3f)
        buffer_normal3f           = R_BufferData_Store(numvertices * sizeof(float[3]), normal3f          , R_BUFFERDATA_VERTEX, &bufferoffset_normal3f          );
    if (texcoordtexture2f)
        buffer_texcoordtexture2f  = R_BufferData_Store(numvertices * sizeof(float[2]), texcoordtexture2f , R_BUFFERDATA_VERTEX, &bufferoffset_texcoordtexture2f );
    if (texcoordlightmap2f)
        buffer_texcoordlightmap2f = R_BufferData_Store(numvertices * sizeof(float[2]), texcoordlightmap2f, R_BUFFERDATA_VERTEX, &bufferoffset_texcoordlightmap2f);
    R_Mesh_VertexPointer(     3, GL_FLOAT        , sizeof(float[3])        , vertex3f          , buffer_vertex3f          , bufferoffset_vertex3f          );
    R_Mesh_ColorPointer(      4, GL_FLOAT        , sizeof(float[4])        , color4f           , buffer_color4f           , bufferoffset_color4f           );
    R_Mesh_TexCoordPointer(0, 2, GL_FLOAT        , sizeof(float[2])        , texcoordtexture2f , buffer_texcoordtexture2f , bufferoffset_texcoordtexture2f );
    R_Mesh_TexCoordPointer(1, 3, GL_FLOAT        , sizeof(float[3])        , svector3f         , buffer_svector3f         , bufferoffset_svector3f         );
    R_Mesh_TexCoordPointer(2, 3, GL_FLOAT        , sizeof(float[3])        , tvector3f         , buffer_tvector3f         , bufferoffset_tvector3f         );
    R_Mesh_TexCoordPointer(3, 3, GL_FLOAT        , sizeof(float[3])        , normal3f          , buffer_normal3f          , bufferoffset_normal3f          );
    R_Mesh_TexCoordPointer(4, 2, GL_FLOAT        , sizeof(float[2])        , texcoordlightmap2f, buffer_texcoordlightmap2f, bufferoffset_texcoordlightmap2f);
    R_Mesh_TexCoordPointer(5, 2, GL_FLOAT        , sizeof(float[2])        , NULL              , NULL                     , 0                              );
    R_Mesh_TexCoordPointer(6, 4, GL_UNSIGNED_BYTE, sizeof(unsigned char[4]), NULL              , NULL                     , 0                              );
    R_Mesh_TexCoordPointer(7, 4, GL_UNSIGNED_BYTE, sizeof(unsigned char[4]), NULL              , NULL                     , 0                              );
}

References GL_FLOAT, GL_UNSIGNED_BYTE, NULL, R_BufferData_Store(), R_BUFFERDATA_VERTEX, R_Mesh_ColorPointer(), R_Mesh_TexCoordPointer(), and R_Mesh_VertexPointer().

Referenced by R_BlendView().

R_Mesh_PrepareVertices_Vertex3f()

void R_Mesh_PrepareVertices_Vertex3f	(	int	numvertices,
		const float *	vertex3f,
		const r_meshbuffer_t *	vertexbuffer,
		int	bufferoffset )

Definition at line 2218 of file gl_backend.c.

{
    // upload temporary vertexbuffer for this rendering
    if (!vertexbuffer)
        vertexbuffer = R_BufferData_Store(numvertices * sizeof(float[3]), (void *)vertex3f, R_BUFFERDATA_VERTEX, &bufferoffset);
    R_Mesh_VertexPointer(     3, GL_FLOAT        , sizeof(float[3])        , vertex3f  , vertexbuffer     , bufferoffset           );
    R_Mesh_ColorPointer(      4, GL_FLOAT        , sizeof(float[4])        , NULL      , NULL             , 0                      );
    R_Mesh_TexCoordPointer(0, 2, GL_FLOAT        , sizeof(float[2])        , NULL      , NULL             , 0                      );
    R_Mesh_TexCoordPointer(1, 3, GL_FLOAT        , sizeof(float[3])        , NULL      , NULL             , 0                      );
    R_Mesh_TexCoordPointer(2, 3, GL_FLOAT        , sizeof(float[3])        , NULL      , NULL             , 0                      );
    R_Mesh_TexCoordPointer(3, 3, GL_FLOAT        , sizeof(float[3])        , NULL      , NULL             , 0                      );
    R_Mesh_TexCoordPointer(4, 2, GL_FLOAT        , sizeof(float[2])        , NULL      , NULL             , 0                      );
    R_Mesh_TexCoordPointer(5, 2, GL_FLOAT        , sizeof(float[2])        , NULL      , NULL             , 0                      );
    R_Mesh_TexCoordPointer(6, 4, GL_UNSIGNED_BYTE, sizeof(unsigned char[4]), NULL      , NULL             , 0                      );
    R_Mesh_TexCoordPointer(7, 4, GL_UNSIGNED_BYTE, sizeof(unsigned char[4]), NULL      , NULL             , 0                      );
}

References GL_FLOAT, GL_UNSIGNED_BYTE, NULL, R_BufferData_Store(), R_BUFFERDATA_VERTEX, R_Mesh_ColorPointer(), R_Mesh_TexCoordPointer(), and R_Mesh_VertexPointer().

Referenced by R_BeginCoronaQuery(), R_DrawSurface_TransparentCallback(), R_DrawTextureSurfaceList_DepthOnly(), R_DrawTextureSurfaceList_Sky(), R_Mod_DrawShadowMap(), R_Shadow_DrawWorldShadow_ShadowMap(), and R_Shadow_RenderMode_DrawDeferredLight().

R_Mesh_ResetTextureState()

void R_Mesh_ResetTextureState

(

void

)

Definition at line 2206 of file gl_backend.c.

{
#if 0
    unsigned int unitnum;
    
    BACKENDACTIVECHECK
 
    for (unitnum = 0;unitnum < MAX_TEXTUREUNITS;unitnum++)
        R_Mesh_TexBind(unitnum, NULL);
#endif
}

References BACKENDACTIVECHECK, MAX_TEXTUREUNITS, NULL, and R_Mesh_TexBind().

Referenced by R_DrawBBoxMesh(), R_DrawTextureSurfaceList_Sky(), R_ResetViewRendering2D_Common(), R_ResetViewRendering3D(), R_Shadow_ClearShadowMapTexture(), R_Shadow_DrawCoronas(), R_Shadow_DrawPrepass(), R_Shadow_RenderMode_Begin(), R_Shadow_RenderMode_Lighting(), R_Shadow_RenderMode_Reset(), and R_Shadow_RenderMode_ShadowMap().

R_Mesh_SetRenderTargets()

void R_Mesh_SetRenderTargets

(

int

fbo

)

Definition at line 1059 of file gl_backend.c.

{
    // set up framebuffer object or render targets for the active rendering API
    switch (vid.renderpath)
    {
    case RENDERPATH_GL32:
    case RENDERPATH_GLES2:
        if (gl_state.framebufferobject != fbo)
        {
            gl_state.framebufferobject = fbo;
            qglBindFramebuffer(GL_FRAMEBUFFER, gl_state.framebufferobject ? gl_state.framebufferobject : gl_state.defaultframebufferobject);CHECKGLERROR
        }
        break;
    }
}

References CHECKGLERROR, gl_state_t::defaultframebufferobject, gl_state_t::framebufferobject, GL_FRAMEBUFFER, gl_state, viddef_t::renderpath, RENDERPATH_GL32, RENDERPATH_GLES2, and vid.

Referenced by CL_UpdateScreen(), R_Bloom_MakeTexture(), R_Mesh_CreateFramebufferObject(), R_Mesh_Finish(), R_Mesh_Start(), R_RenderView(), R_ResetViewRendering2D_Common(), R_SetupView(), R_Shadow_ClearShadowMapTexture(), R_Shadow_DrawPrepass(), R_Shadow_PrepareLights(), R_Shadow_RenderMode_DrawDeferredLight(), R_Shadow_RenderMode_Reset(), and R_Shadow_RenderMode_ShadowMap().

R_Mesh_Start()

void R_Mesh_Start

(

void

)

Definition at line 1646 of file gl_backend.c.

{
    BACKENDACTIVECHECK
    R_Mesh_SetRenderTargets(0);
#ifdef DEBUGGL // gl_printcheckerror isn't registered in normal builds
    if (gl_printcheckerror.integer && !gl_paranoid.integer)
    {
        Con_Printf(CON_WARN "WARNING: gl_printcheckerror is on but gl_paranoid is off, turning it on...\n");
        Cvar_SetValueQuick(&gl_paranoid, 1);
    }
#endif
}

References BACKENDACTIVECHECK, Con_Printf(), CON_WARN, Cvar_SetValueQuick(), gl_paranoid, gl_printcheckerror, cvar_t::integer, and R_Mesh_SetRenderTargets().

Referenced by R_Envmap_f(), and SCR_DrawScreen().

R_Mesh_TexBind()

void R_Mesh_TexBind	(	unsigned int	unitnum,
		rtexture_t *	tex )

Definition at line 2164 of file gl_backend.c.

{
    gltextureunit_t *unit = gl_state.units + unitnum;
    int texnum;
    if (unitnum >= MAX_TEXTUREUNITS)
        Sys_Error("R_Mesh_TexBind: unitnum %i > max units %i\n", unitnum, MAX_TEXTUREUNITS);
    switch(vid.renderpath)
    {
    case RENDERPATH_GL32:
    case RENDERPATH_GLES2:
        if (tex)
        {
            texnum = R_GetTexture(tex);
            switch (tex->gltexturetypeenum)
            {
            case GL_TEXTURE_2D:
                if (unit->t2d != texnum) { GL_ActiveTexture(unitnum);qglBindTexture(GL_TEXTURE_2D, texnum); CHECKGLERROR unit->t2d = texnum; }
                if (unit->t3d) { GL_ActiveTexture(unitnum); qglBindTexture(GL_TEXTURE_3D, 0); CHECKGLERROR unit->t3d = 0; }
                if (unit->tcubemap) { GL_ActiveTexture(unitnum); qglBindTexture(GL_TEXTURE_CUBE_MAP, 0); CHECKGLERROR unit->tcubemap = 0; }
                break;
            case GL_TEXTURE_3D:
                if (unit->t2d) { GL_ActiveTexture(unitnum); qglBindTexture(GL_TEXTURE_2D, 0); CHECKGLERROR unit->t2d = 0; }
                if (unit->t3d != texnum) { GL_ActiveTexture(unitnum); qglBindTexture(GL_TEXTURE_3D, texnum); CHECKGLERROR unit->t3d = texnum; }
                if (unit->tcubemap) { GL_ActiveTexture(unitnum); qglBindTexture(GL_TEXTURE_CUBE_MAP, 0); CHECKGLERROR unit->tcubemap = 0; }
                break;
            case GL_TEXTURE_CUBE_MAP:
                if (unit->t2d) { GL_ActiveTexture(unitnum); qglBindTexture(GL_TEXTURE_2D, 0); CHECKGLERROR unit->t2d = 0; }
                if (unit->t3d) { GL_ActiveTexture(unitnum); qglBindTexture(GL_TEXTURE_3D, 0); CHECKGLERROR unit->t3d = 0; }
                if (unit->tcubemap != texnum) { GL_ActiveTexture(unitnum); qglBindTexture(GL_TEXTURE_CUBE_MAP, texnum); CHECKGLERROR unit->tcubemap = texnum; }
                break;
            }
        }
        else
        {
            if (unit->t2d) { GL_ActiveTexture(unitnum); qglBindTexture(GL_TEXTURE_2D, 0); CHECKGLERROR unit->t2d = 0; }
            if (unit->t3d) { GL_ActiveTexture(unitnum); qglBindTexture(GL_TEXTURE_3D, 0); CHECKGLERROR unit->t3d = 0; }
            if (unit->tcubemap) { GL_ActiveTexture(unitnum); qglBindTexture(GL_TEXTURE_CUBE_MAP, 0); CHECKGLERROR unit->tcubemap = 0; }
        }
    }
    unit->texture = tex;
}

References CHECKGLERROR, GL_ActiveTexture(), gl_state, GL_TEXTURE_2D, GL_TEXTURE_3D, GL_TEXTURE_CUBE_MAP, rtexture_t::gltexturetypeenum, MAX_TEXTUREUNITS, R_GetTexture, viddef_t::renderpath, RENDERPATH_GL32, RENDERPATH_GLES2, Sys_Error(), gltextureunit_t::t2d, gltextureunit_t::t3d, gltextureunit_t::tcubemap, gltextureunit_t::texture, gl_state_t::units, and vid.

Referenced by R_BlendView(), R_Mesh_ClearBindingsForTexture(), R_Mesh_CopyToTexture(), R_Mesh_ResetTextureState(), R_SetupShader_DeferredLight(), R_SetupShader_Generic(), and R_SetupShader_Surface().

R_Mesh_TexBound()

int R_Mesh_TexBound	(	unsigned int	unitnum,
		int	id )

Definition at line 2124 of file gl_backend.c.

{
    gltextureunit_t *unit = gl_state.units + unitnum;
    if (unitnum >= MAX_TEXTUREUNITS)
        Sys_Error("R_Mesh_TexCoordPointer: unitnum %i > max units %i\n", unitnum, MAX_TEXTUREUNITS);
    if (id == GL_TEXTURE_2D)
        return unit->t2d;
    if (id == GL_TEXTURE_3D)
        return unit->t3d;
    if (id == GL_TEXTURE_CUBE_MAP)
        return unit->tcubemap;
    return 0;
}

References gl_state, GL_TEXTURE_2D, GL_TEXTURE_3D, GL_TEXTURE_CUBE_MAP, MAX_TEXTUREUNITS, Sys_Error(), gltextureunit_t::t2d, gltextureunit_t::t3d, gltextureunit_t::tcubemap, and gl_state_t::units.

Referenced by GL_TextureMode_f(), R_LoadTextureDDSFile(), R_SaveTextureDDSFile(), R_Textures_Frame(), R_UploadFullTexture(), and R_UploadPartialTexture().

R_Mesh_TexCoordPointer()

void R_Mesh_TexCoordPointer	(	unsigned int	unitnum,
		int	components,
		int	gltype,
		size_t	stride,
		const void *	pointer,
		const r_meshbuffer_t *	vertexbuffer,
		size_t	bufferoffset )

Definition at line 2075 of file gl_backend.c.

{
    gltextureunit_t *unit = gl_state.units + unitnum;
    if (unitnum >= MAX_TEXTUREUNITS)
        Sys_Error("R_Mesh_TexCoordPointer: unitnum %i > max units %i\n", unitnum, MAX_TEXTUREUNITS);
    // update array settings
    // note: there is no need to check bufferobject here because all cases
    // that involve a valid bufferobject also supply a texcoord array
    switch(vid.renderpath)
    {
    case RENDERPATH_GL32:
    case RENDERPATH_GLES2:
        CHECKGLERROR
        if (pointer)
        {
            int bufferobject = vertexbuffer ? vertexbuffer->bufferobject : 0;
            // texture array unit is enabled, enable the array
            if (!unit->arrayenabled)
            {
                unit->arrayenabled = true;
                qglEnableVertexAttribArray(unitnum+GLSLATTRIB_TEXCOORD0);CHECKGLERROR
            }
            // texcoord array
            if (unit->pointer_texcoord_components != components || unit->pointer_texcoord_gltype != gltype || unit->pointer_texcoord_stride != stride || unit->pointer_texcoord_pointer != pointer || unit->pointer_texcoord_vertexbuffer != vertexbuffer || unit->pointer_texcoord_offset != bufferoffset)
            {
                unit->pointer_texcoord_components = components;
                unit->pointer_texcoord_gltype = gltype;
                unit->pointer_texcoord_stride = stride;
                unit->pointer_texcoord_pointer = pointer;
                unit->pointer_texcoord_vertexbuffer = vertexbuffer;
                unit->pointer_texcoord_offset = bufferoffset;
                GL_BindVBO(bufferobject);
                // LadyHavoc: special flag added to gltype for unnormalized types
                qglVertexAttribPointer(unitnum+GLSLATTRIB_TEXCOORD0, components, gltype & ~0x80000000, (gltype & 0x80000000) == 0, (GLsizei)stride, bufferobject ? (void *)bufferoffset : pointer);CHECKGLERROR
            }
        }
        else
        {
            // texture array unit is disabled, disable the array
            if (unit->arrayenabled)
            {
                unit->arrayenabled = false;
                qglDisableVertexAttribArray(unitnum+GLSLATTRIB_TEXCOORD0);CHECKGLERROR
            }
        }
        break;
    }
}

References gltextureunit_t::arrayenabled, r_meshbuffer_t::bufferobject, CHECKGLERROR, GL_BindVBO(), gl_state, GLSLATTRIB_TEXCOORD0, MAX_TEXTUREUNITS, pointer, gltextureunit_t::pointer_texcoord_components, gltextureunit_t::pointer_texcoord_gltype, gltextureunit_t::pointer_texcoord_offset, gltextureunit_t::pointer_texcoord_pointer, gltextureunit_t::pointer_texcoord_stride, gltextureunit_t::pointer_texcoord_vertexbuffer, viddef_t::renderpath, RENDERPATH_GL32, RENDERPATH_GLES2, stride, Sys_Error(), gl_state_t::units, and vid.

Referenced by R_Mesh_PrepareVertices_Generic_Arrays(), R_Mesh_PrepareVertices_Mesh_Arrays(), R_Mesh_PrepareVertices_Vertex3f(), and RSurf_UploadBuffersForBatch().

R_Mesh_UpdateMeshBuffer()

void R_Mesh_UpdateMeshBuffer	(	r_meshbuffer_t *	buffer,
		const void *	data,
		size_t	size,
		qbool	subdata,
		size_t	offset )

Definition at line 1879 of file gl_backend.c.

{
    if (!buffer)
        return;
    if (buffer->isindexbuffer)
    {
        r_refdef.stats[r_stat_indexbufferuploadcount]++;
        r_refdef.stats[r_stat_indexbufferuploadsize] += (int)size;
    }
    else
    {
        r_refdef.stats[r_stat_vertexbufferuploadcount]++;
        r_refdef.stats[r_stat_vertexbufferuploadsize] += (int)size;
    }
    if (!subdata)
        buffer->size = size;
    switch(vid.renderpath)
    {
    case RENDERPATH_GL32:
    case RENDERPATH_GLES2:
        if (!buffer->bufferobject)
            qglGenBuffers(1, (GLuint *)&buffer->bufferobject);
        CHECKGLERROR
        if (buffer->isuniformbuffer)
            GL_BindUBO(buffer->bufferobject);
        else if (buffer->isindexbuffer)
            GL_BindEBO(buffer->bufferobject);
        else
            GL_BindVBO(buffer->bufferobject);
 
        {
            int buffertype;
            buffertype = buffer->isindexbuffer ? GL_ELEMENT_ARRAY_BUFFER : GL_ARRAY_BUFFER;
#ifdef GL_UNIFORM_BUFFER
            if (buffer->isuniformbuffer)
                buffertype = GL_UNIFORM_BUFFER;
#endif
            CHECKGLERROR
            if (subdata)
                qglBufferSubData(buffertype, offset, size, data);
            else
                qglBufferData(buffertype, size, data, buffer->isdynamic ? GL_STREAM_DRAW : GL_STATIC_DRAW);
            CHECKGLERROR
        }
        if (buffer->isuniformbuffer)
            GL_BindUBO(0);
        break;
    }
}

References buffer, CHECKGLERROR, data, GL_ARRAY_BUFFER, GL_BindEBO(), GL_BindUBO(), GL_BindVBO(), GL_ELEMENT_ARRAY_BUFFER, GL_STATIC_DRAW, GL_STREAM_DRAW, GL_UNIFORM_BUFFER, int(), offset, r_refdef, r_stat_indexbufferuploadcount, r_stat_indexbufferuploadsize, r_stat_vertexbufferuploadcount, r_stat_vertexbufferuploadsize, viddef_t::renderpath, RENDERPATH_GL32, RENDERPATH_GLES2, size, r_refdef_t::stats, and vid.

Referenced by R_BufferData_Store(), and R_Mesh_CreateMeshBuffer().

R_Mesh_VertexPointer()

void R_Mesh_VertexPointer	(	int	components,
		int	gltype,
		size_t	stride,
		const void *	pointer,
		const r_meshbuffer_t *	vertexbuffer,
		size_t	bufferoffset )

Definition at line 2000 of file gl_backend.c.

{
    switch(vid.renderpath)
    {
    case RENDERPATH_GL32:
    case RENDERPATH_GLES2:
        if (gl_state.pointer_vertex_components != components || gl_state.pointer_vertex_gltype != gltype || gl_state.pointer_vertex_stride != stride || gl_state.pointer_vertex_pointer != pointer || gl_state.pointer_vertex_vertexbuffer != vertexbuffer || gl_state.pointer_vertex_offset != bufferoffset)
        {
            int bufferobject = vertexbuffer ? vertexbuffer->bufferobject : 0;
            if (!bufferobject && gl_paranoid.integer)
                Con_DPrintf(CON_WARN "Warning: no bufferobject in R_Mesh_VertexPointer(%i, %i, %i, %p, %p, %08x)", components, gltype, (int)stride, pointer, (void *)vertexbuffer, (unsigned int)bufferoffset);
            gl_state.pointer_vertex_components = components;
            gl_state.pointer_vertex_gltype = gltype;
            gl_state.pointer_vertex_stride = stride;
            gl_state.pointer_vertex_pointer = pointer;
            gl_state.pointer_vertex_vertexbuffer = vertexbuffer;
            gl_state.pointer_vertex_offset = bufferoffset;
            CHECKGLERROR
            GL_BindVBO(bufferobject);
            // LadyHavoc: special flag added to gltype for unnormalized types
            qglVertexAttribPointer(GLSLATTRIB_POSITION, components, gltype & ~0x80000000, (gltype & 0x80000000) == 0, (GLsizei)stride, bufferobject ? (void *)bufferoffset : pointer);CHECKGLERROR
        }
        break;
    }
}

References r_meshbuffer_t::bufferobject, CHECKGLERROR, Con_DPrintf(), CON_WARN, GL_BindVBO(), gl_paranoid, gl_state, GLSLATTRIB_POSITION, cvar_t::integer, pointer, gl_state_t::pointer_vertex_components, gl_state_t::pointer_vertex_gltype, gl_state_t::pointer_vertex_offset, gl_state_t::pointer_vertex_pointer, gl_state_t::pointer_vertex_stride, gl_state_t::pointer_vertex_vertexbuffer, viddef_t::renderpath, RENDERPATH_GL32, RENDERPATH_GLES2, stride, and vid.

Referenced by R_Mesh_PrepareVertices_Generic_Arrays(), R_Mesh_PrepareVertices_Mesh_Arrays(), R_Mesh_PrepareVertices_Vertex3f(), and RSurf_UploadBuffersForBatch().

R_ScissorForBBox()

qbool R_ScissorForBBox	(	const float *	mins,
		const float *	maxs,
		int *	scissor )

Definition at line 430 of file gl_backend.c.

{
    int i, ix1, iy1, ix2, iy2;
    float x1, y1, x2, y2;
    vec4_t v, v2;
    float vertex[20][3];
    int j, k;
    vec4_t plane4f;
    int numvertices;
    float corner[8][4];
    float dist[8];
    int sign[8];
    float f;
 
    scissor[0] = r_refdef.view.viewport.x;
    scissor[1] = r_refdef.view.viewport.y;
    scissor[2] = r_refdef.view.viewport.width;
    scissor[3] = r_refdef.view.viewport.height;
 
    // if view is inside the box, just say yes it's visible
    if (BoxesOverlap(r_refdef.view.origin, r_refdef.view.origin, mins, maxs))
        return false;
 
    // transform all corners that are infront of the nearclip plane
    VectorNegate(r_refdef.view.frustum[4].normal, plane4f);
    plane4f[3] = r_refdef.view.frustum[4].dist;
    numvertices = 0;
    for (i = 0;i < 8;i++)
    {
        Vector4Set(corner[i], (i & 1) ? maxs[0] : mins[0], (i & 2) ? maxs[1] : mins[1], (i & 4) ? maxs[2] : mins[2], 1);
        dist[i] = DotProduct4(corner[i], plane4f);
        sign[i] = dist[i] > 0;
        if (!sign[i])
        {
            VectorCopy(corner[i], vertex[numvertices]);
            numvertices++;
        }
    }
    // if some points are behind the nearclip, add clipped edge points to make
    // sure that the scissor boundary is complete
    if (numvertices > 0 && numvertices < 8)
    {
        // add clipped edge points
        for (i = 0;i < 12;i++)
        {
            j = bboxedges[i][0];
            k = bboxedges[i][1];
            if (sign[j] != sign[k])
            {
                f = dist[j] / (dist[j] - dist[k]);
                VectorLerp(corner[j], f, corner[k], vertex[numvertices]);
                numvertices++;
            }
        }
    }
 
    // if we have no points to check, it is behind the view plane
    if (!numvertices)
        return true;
 
    // if we have some points to transform, check what screen area is covered
    x1 = y1 = x2 = y2 = 0;
    v[3] = 1.0f;
    //Con_Printf("%i vertices to transform...\n", numvertices);
    for (i = 0;i < numvertices;i++)
    {
        VectorCopy(vertex[i], v);
        R_Viewport_TransformToScreen(&r_refdef.view.viewport, v, v2);
        //Con_Printf("%.3f %.3f %.3f %.3f transformed to %.3f %.3f %.3f %.3f\n", v[0], v[1], v[2], v[3], v2[0], v2[1], v2[2], v2[3]);
        if (i)
        {
            if (x1 > v2[0]) x1 = v2[0];
            if (x2 < v2[0]) x2 = v2[0];
            if (y1 > v2[1]) y1 = v2[1];
            if (y2 < v2[1]) y2 = v2[1];
        }
        else
        {
            x1 = x2 = v2[0];
            y1 = y2 = v2[1];
        }
    }
 
    // now convert the scissor rectangle to integer screen coordinates
    ix1 = (int)(x1 - 1.0f);
    //iy1 = vid.height - (int)(y2 - 1.0f);
    //iy1 = r_refdef.view.viewport.width + 2 * r_refdef.view.viewport.x - (int)(y2 - 1.0f);
    iy1 = (int)(y1 - 1.0f);
    ix2 = (int)(x2 + 1.0f);
    //iy2 = vid.height - (int)(y1 + 1.0f);
    //iy2 = r_refdef.view.viewport.height + 2 * r_refdef.view.viewport.y - (int)(y1 + 1.0f);
    iy2 = (int)(y2 + 1.0f);
    //Con_Printf("%f %f %f %f\n", x1, y1, x2, y2);
 
    // clamp it to the screen
    if (ix1 < r_refdef.view.viewport.x) ix1 = r_refdef.view.viewport.x;
    if (iy1 < r_refdef.view.viewport.y) iy1 = r_refdef.view.viewport.y;
    if (ix2 > r_refdef.view.viewport.x + r_refdef.view.viewport.width) ix2 = r_refdef.view.viewport.x + r_refdef.view.viewport.width;
    if (iy2 > r_refdef.view.viewport.y + r_refdef.view.viewport.height) iy2 = r_refdef.view.viewport.y + r_refdef.view.viewport.height;
 
    // if it is inside out, it's not visible
    if (ix2 <= ix1 || iy2 <= iy1)
        return true;
 
    // the light area is visible, set up the scissor rectangle
    scissor[0] = ix1;
    scissor[1] = iy1;
    scissor[2] = ix2 - ix1;
    scissor[3] = iy2 - iy1;
 
    // D3D Y coordinate is top to bottom, OpenGL is bottom to top, fix the D3D one
    switch(vid.renderpath)
    {
    case RENDERPATH_GL32:
    case RENDERPATH_GLES2:
        break;
    }
 
    return false;
}

References bboxedges, BoxesOverlap, mplane_t::dist, DotProduct4, f, r_refdef_view_t::frustum, r_viewport_t::height, i, int(), maxs, mins, mplane_t::normal, r_refdef_view_t::origin, r_refdef, R_Viewport_TransformToScreen(), viddef_t::renderpath, RENDERPATH_GL32, RENDERPATH_GLES2, v, v2, Vector4Set, VectorCopy, VectorLerp, VectorNegate, vid, r_refdef_t::view, r_refdef_view_t::viewport, r_viewport_t::width, r_viewport_t::x, x1, x2, r_viewport_t::y, and y2.

Referenced by R_DrawTextureSurfaceList_Sky(), R_Shadow_ScissorForBBox(), and R_Water_ProcessPlanes().

R_SetStencil()

void R_SetStencil	(	qbool	enable,
		int	writemask,
		int	fail,
		int	zfail,
		int	zpass,
		int	compare,
		int	comparereference,
		int	comparemask )

Definition at line 1271 of file gl_backend.c.

{
    switch (vid.renderpath)
    {
    case RENDERPATH_GL32:
    case RENDERPATH_GLES2:
        CHECKGLERROR
        if (enable)
        {
            qglEnable(GL_STENCIL_TEST);CHECKGLERROR
        }
        else
        {
            qglDisable(GL_STENCIL_TEST);CHECKGLERROR
        }
        qglStencilMask(writemask);CHECKGLERROR
        qglStencilOp(fail, zfail, zpass);CHECKGLERROR
        qglStencilFunc(compare, comparereference, comparemask);CHECKGLERROR
        CHECKGLERROR
        break;
    }
}

References CHECKGLERROR, GL_STENCIL_TEST, viddef_t::renderpath, RENDERPATH_GL32, RENDERPATH_GLES2, vid, zfail, and zpass.

R_SetViewport()

void R_SetViewport

(

const r_viewport_t *

v

)

Definition at line 897 of file gl_backend.c.

{
    gl_viewport = *v;
 
    // FIXME: v_flipped_state is evil, this probably breaks somewhere
    GL_SetMirrorState(v_flipped.integer && (v->type == R_VIEWPORTTYPE_PERSPECTIVE || v->type == R_VIEWPORTTYPE_PERSPECTIVE_INFINITEFARCLIP));
 
    // copy over the matrices to our state
    gl_viewmatrix = v->viewmatrix;
    gl_projectionmatrix = v->projectmatrix;
 
    switch(vid.renderpath)
    {
    case RENDERPATH_GL32:
    case RENDERPATH_GLES2:
        CHECKGLERROR
        qglViewport(v->x, v->y, v->width, v->height);CHECKGLERROR
        break;
    }
 
    // force an update of the derived matrices
    gl_modelmatrixchanged = true;
    R_EntityMatrix(&gl_modelmatrix);
}

References CHECKGLERROR, gl_modelmatrix, gl_modelmatrixchanged, gl_projectionmatrix, GL_SetMirrorState(), gl_viewmatrix, gl_viewport, cvar_t::integer, R_EntityMatrix(), R_VIEWPORTTYPE_PERSPECTIVE, R_VIEWPORTTYPE_PERSPECTIVE_INFINITEFARCLIP, viddef_t::renderpath, RENDERPATH_GL32, RENDERPATH_GLES2, v, v_flipped, and vid.

Referenced by CL_UpdateScreen(), R_Bloom_MakeTexture(), R_ResetViewRendering2D_Common(), R_SetupView(), R_Shadow_ClearShadowMapTexture(), R_Shadow_DrawModelShadowMaps(), R_Shadow_RenderMode_Reset(), and R_Shadow_RenderMode_ShadowMap().

R_Viewport_ApplyNearClipPlaneFloatGL()

static void R_Viewport_ApplyNearClipPlaneFloatGL ( const r_viewport_t * v, float * m, float normalx, float normaly, float normalz, float dist )

static

Definition at line 552 of file gl_backend.c.

{
    float q[4];
    float d;
    float clipPlane[4], v3[3], v4[3];
    float normal[3];
 
    // This is inspired by Oblique Depth Projection from http://www.terathon.com/code/oblique.php
 
    VectorSet(normal, normalx, normaly, normalz);
    Matrix4x4_Transform3x3(&v->viewmatrix, normal, clipPlane);
    VectorScale(normal, -dist, v3);
    Matrix4x4_Transform(&v->viewmatrix, v3, v4);
    // FIXME: LadyHavoc: I think this can be done more efficiently somehow but I can't remember the technique
    clipPlane[3] = -DotProduct(v4, clipPlane);
 
    // Calculate the clip-space corner point opposite the clipping plane
    // as (sgn(clipPlane.x), sgn(clipPlane.y), 1, 1) and
    // transform it into camera space by multiplying it
    // by the inverse of the projection matrix
    q[0] = ((clipPlane[0] < 0.0f ? -1.0f : clipPlane[0] > 0.0f ? 1.0f : 0.0f) + m[8]) / m[0];
    q[1] = ((clipPlane[1] < 0.0f ? -1.0f : clipPlane[1] > 0.0f ? 1.0f : 0.0f) + m[9]) / m[5];
    q[2] = -1.0f;
    q[3] = (1.0f + m[10]) / m[14];
 
    // Calculate the scaled plane vector
    d = 2.0f / DotProduct4(clipPlane, q);
 
    // Replace the third row of the projection matrix
    m[2] = clipPlane[0] * d;
    m[6] = clipPlane[1] * d;
    m[10] = clipPlane[2] * d + 1.0f;
    m[14] = clipPlane[3] * d;
}

References DotProduct, DotProduct4, Matrix4x4_Transform(), Matrix4x4_Transform3x3(), normal, v, v3, VectorScale, and VectorSet.

Referenced by R_Viewport_InitCubeSideView(), R_Viewport_InitOrtho(), R_Viewport_InitOrtho3D(), R_Viewport_InitPerspective(), R_Viewport_InitPerspectiveInfinite(), and R_Viewport_InitRectSideView().

R_Viewport_InitCubeSideView()

void R_Viewport_InitCubeSideView	(	r_viewport_t *	v,
		const matrix4x4_t *	cameramatrix,
		int	side,
		int	size,
		float	nearclip,
		float	farclip,
		const float *	nearplane )

Definition at line 843 of file gl_backend.c.

{
    matrix4x4_t tempmatrix, basematrix;
    float m[16];
    memset(v, 0, sizeof(*v));
    v->type = R_VIEWPORTTYPE_PERSPECTIVECUBESIDE;
    v->cameramatrix = *cameramatrix;
    v->width = size;
    v->height = size;
    v->depth = 1;
    memset(m, 0, sizeof(m));
    m[0] = m[5] = 1.0f;
    m[10] = -(farclip + nearclip) / (farclip - nearclip);
    m[11] = -1;
    m[14] = -2 * nearclip * farclip / (farclip - nearclip);
 
    Matrix4x4_FromArrayFloatGL(&basematrix, cubeviewmatrix[side]);
    Matrix4x4_Invert_Full(&tempmatrix, &v->cameramatrix);
    Matrix4x4_Concat(&v->viewmatrix, &basematrix, &tempmatrix);
 
    if (nearplane)
        R_Viewport_ApplyNearClipPlaneFloatGL(v, m, nearplane[0], nearplane[1], nearplane[2], nearplane[3]);
 
    Matrix4x4_FromArrayFloatGL(&v->projectmatrix, m);
}

References cubeviewmatrix, Matrix4x4_Concat(), Matrix4x4_FromArrayFloatGL(), Matrix4x4_Invert_Full(), R_Viewport_ApplyNearClipPlaneFloatGL(), R_VIEWPORTTYPE_PERSPECTIVECUBESIDE, size, and v.

R_Viewport_InitOrtho()

void R_Viewport_InitOrtho	(	r_viewport_t *	v,
		const matrix4x4_t *	cameramatrix,
		int	x,
		int	y,
		int	width,
		int	height,
		float	x1,
		float	y1,
		float	x2,
		float	y2,
		float	nearclip,
		float	farclip,
		const float *	nearplane )

Definition at line 587 of file gl_backend.c.

{
    float left = x1, right = x2, bottom = y2, top = y1, zNear = nearclip, zFar = farclip;
    float m[16];
    memset(v, 0, sizeof(*v));
    v->type = R_VIEWPORTTYPE_ORTHO;
    v->cameramatrix = *cameramatrix;
    v->x = x;
    v->y = y;
    v->z = 0;
    v->width = width;
    v->height = height;
    v->depth = 1;
    memset(m, 0, sizeof(m));
    m[0]  = 2/(right - left);
    m[5]  = 2/(top - bottom);
    m[10] = -2/(zFar - zNear);
    m[12] = - (right + left)/(right - left);
    m[13] = - (top + bottom)/(top - bottom);
    m[14] = - (zFar + zNear)/(zFar - zNear);
    m[15] = 1;
    switch(vid.renderpath)
    {
    case RENDERPATH_GL32:
    case RENDERPATH_GLES2:
        break;
    }
    v->screentodepth[0] = -farclip / (farclip - nearclip);
    v->screentodepth[1] = farclip * nearclip / (farclip - nearclip);
 
    Matrix4x4_Invert_Full(&v->viewmatrix, &v->cameramatrix);
 
    if (nearplane)
        R_Viewport_ApplyNearClipPlaneFloatGL(v, m, nearplane[0], nearplane[1], nearplane[2], nearplane[3]);
 
    Matrix4x4_FromArrayFloatGL(&v->projectmatrix, m);
 
#if 0
    {
        vec4_t test1;
        vec4_t test2;
        Vector4Set(test1, (x1+x2)*0.5f, (y1+y2)*0.5f, 0.0f, 1.0f);
        R_Viewport_TransformToScreen(v, test1, test2);
        Con_Printf("%f %f %f -> %f %f %f\n", test1[0], test1[1], test1[2], test2[0], test2[1], test2[2]);
    }
#endif
}

References Con_Printf(), height, Matrix4x4_FromArrayFloatGL(), Matrix4x4_Invert_Full(), R_Viewport_ApplyNearClipPlaneFloatGL(), R_Viewport_TransformToScreen(), R_VIEWPORTTYPE_ORTHO, viddef_t::renderpath, RENDERPATH_GL32, RENDERPATH_GLES2, right, v, Vector4Set, vid, width, x, x1, x2, y, and y2.

Referenced by CL_UpdateScreen(), R_Bloom_MakeTexture(), R_ResetViewRendering2D_Common(), R_Shadow_ClearShadowMapTexture(), and R_Shadow_DrawModelShadowMaps().

R_Viewport_InitOrtho3D()

void R_Viewport_InitOrtho3D	(	r_viewport_t *	v,
		const matrix4x4_t *	cameramatrix,
		int	x,
		int	y,
		int	width,
		int	height,
		float	frustumx,
		float	frustumy,
		float	nearclip,
		float	farclip,
		const float *	nearplane )

Definition at line 635 of file gl_backend.c.

{
    matrix4x4_t tempmatrix, basematrix;
    float m[16];
    memset(v, 0, sizeof(*v));
 
    v->type = R_VIEWPORTTYPE_PERSPECTIVE;
    v->cameramatrix = *cameramatrix;
    v->x = x;
    v->y = y;
    v->z = 0;
    v->width = width;
    v->height = height;
    v->depth = 1;
    memset(m, 0, sizeof(m));
    m[0]  = 1.0 / frustumx;
    m[5]  = 1.0 / frustumy;
    m[10] = -2 / (farclip - nearclip);
    m[14] = -(farclip + nearclip) / (farclip - nearclip);
    m[15] = 1;
    v->screentodepth[0] = -farclip / (farclip - nearclip);
    v->screentodepth[1] = farclip * nearclip / (farclip - nearclip);
 
    Matrix4x4_Invert_Full(&tempmatrix, &v->cameramatrix);
    Matrix4x4_CreateRotate(&basematrix, -90, 1, 0, 0);
    Matrix4x4_ConcatRotate(&basematrix, 90, 0, 0, 1);
    Matrix4x4_Concat(&v->viewmatrix, &basematrix, &tempmatrix);
 
    if (nearplane)
        R_Viewport_ApplyNearClipPlaneFloatGL(v, m, nearplane[0], nearplane[1], nearplane[2], nearplane[3]);
 
    if(v_flipped.integer)
    {
        m[0] = -m[0];
        m[4] = -m[4];
        m[8] = -m[8];
        m[12] = -m[12];
    }
 
    Matrix4x4_FromArrayFloatGL(&v->projectmatrix, m);
}

References height, cvar_t::integer, Matrix4x4_Concat(), Matrix4x4_ConcatRotate(), Matrix4x4_CreateRotate(), Matrix4x4_FromArrayFloatGL(), Matrix4x4_Invert_Full(), R_Viewport_ApplyNearClipPlaneFloatGL(), R_VIEWPORTTYPE_PERSPECTIVE, v, v_flipped, width, x, and y.

Referenced by R_SetupView().

R_Viewport_InitPerspective()

void R_Viewport_InitPerspective	(	r_viewport_t *	v,
		const matrix4x4_t *	cameramatrix,
		int	x,
		int	y,
		int	width,
		int	height,
		float	frustumx,
		float	frustumy,
		float	nearclip,
		float	farclip,
		const float *	nearplane )

Definition at line 677 of file gl_backend.c.

{
    matrix4x4_t tempmatrix, basematrix;
    float m[16];
    memset(v, 0, sizeof(*v));
 
    v->type = R_VIEWPORTTYPE_PERSPECTIVE;
    v->cameramatrix = *cameramatrix;
    v->x = x;
    v->y = y;
    v->z = 0;
    v->width = width;
    v->height = height;
    v->depth = 1;
    memset(m, 0, sizeof(m));
    m[0]  = 1.0 / frustumx;
    m[5]  = 1.0 / frustumy;
    m[10] = -(farclip + nearclip) / (farclip - nearclip);
    m[11] = -1;
    m[14] = -2 * nearclip * farclip / (farclip - nearclip);
    v->screentodepth[0] = -farclip / (farclip - nearclip);
    v->screentodepth[1] = farclip * nearclip / (farclip - nearclip);
 
    Matrix4x4_Invert_Full(&tempmatrix, &v->cameramatrix);
    Matrix4x4_CreateRotate(&basematrix, -90, 1, 0, 0);
    Matrix4x4_ConcatRotate(&basematrix, 90, 0, 0, 1);
    Matrix4x4_Concat(&v->viewmatrix, &basematrix, &tempmatrix);
 
    if (nearplane)
        R_Viewport_ApplyNearClipPlaneFloatGL(v, m, nearplane[0], nearplane[1], nearplane[2], nearplane[3]);
 
    if(v_flipped.integer)
    {
        m[0] = -m[0];
        m[4] = -m[4];
        m[8] = -m[8];
        m[12] = -m[12];
    }
 
    Matrix4x4_FromArrayFloatGL(&v->projectmatrix, m);
}

References height, cvar_t::integer, Matrix4x4_Concat(), Matrix4x4_ConcatRotate(), Matrix4x4_CreateRotate(), Matrix4x4_FromArrayFloatGL(), Matrix4x4_Invert_Full(), R_Viewport_ApplyNearClipPlaneFloatGL(), R_VIEWPORTTYPE_PERSPECTIVE, v, v_flipped, width, x, and y.

Referenced by R_SetupView().

R_Viewport_InitPerspectiveInfinite()

void R_Viewport_InitPerspectiveInfinite	(	r_viewport_t *	v,
		const matrix4x4_t *	cameramatrix,
		int	x,
		int	y,
		int	width,
		int	height,
		float	frustumx,
		float	frustumy,
		float	nearclip,
		const float *	nearplane )

Definition at line 719 of file gl_backend.c.

{
    matrix4x4_t tempmatrix, basematrix;
    const float nudge = 1.0 - 1.0 / (1<<23);
    float m[16];
    memset(v, 0, sizeof(*v));
 
    v->type = R_VIEWPORTTYPE_PERSPECTIVE_INFINITEFARCLIP;
    v->cameramatrix = *cameramatrix;
    v->x = x;
    v->y = y;
    v->z = 0;
    v->width = width;
    v->height = height;
    v->depth = 1;
    memset(m, 0, sizeof(m));
    m[ 0] = 1.0 / frustumx;
    m[ 5] = 1.0 / frustumy;
    m[10] = -nudge;
    m[11] = -1;
    m[14] = -2 * nearclip * nudge;
    v->screentodepth[0] = (m[10] + 1) * 0.5 - 1;
    v->screentodepth[1] = m[14] * -0.5;
 
    Matrix4x4_Invert_Full(&tempmatrix, &v->cameramatrix);
    Matrix4x4_CreateRotate(&basematrix, -90, 1, 0, 0);
    Matrix4x4_ConcatRotate(&basematrix, 90, 0, 0, 1);
    Matrix4x4_Concat(&v->viewmatrix, &basematrix, &tempmatrix);
 
    if (nearplane)
        R_Viewport_ApplyNearClipPlaneFloatGL(v, m, nearplane[0], nearplane[1], nearplane[2], nearplane[3]);
 
    if(v_flipped.integer)
    {
        m[0] = -m[0];
        m[4] = -m[4];
        m[8] = -m[8];
        m[12] = -m[12];
    }
 
    Matrix4x4_FromArrayFloatGL(&v->projectmatrix, m);
}

References height, cvar_t::integer, Matrix4x4_Concat(), Matrix4x4_ConcatRotate(), Matrix4x4_CreateRotate(), Matrix4x4_FromArrayFloatGL(), Matrix4x4_Invert_Full(), R_Viewport_ApplyNearClipPlaneFloatGL(), R_VIEWPORTTYPE_PERSPECTIVE_INFINITEFARCLIP, v, v_flipped, width, x, and y.

Referenced by R_SetupView().

R_Viewport_InitRectSideView()

void R_Viewport_InitRectSideView	(	r_viewport_t *	v,
		const matrix4x4_t *	cameramatrix,
		int	side,
		int	size,
		int	border,
		float	nearclip,
		float	farclip,
		const float *	nearplane,
		int	offsetx,
		int	offsety )

Definition at line 869 of file gl_backend.c.

{
    matrix4x4_t tempmatrix, basematrix;
    float m[16];
    memset(v, 0, sizeof(*v));
    v->type = R_VIEWPORTTYPE_PERSPECTIVECUBESIDE;
    v->cameramatrix = *cameramatrix;
    v->x = offsetx + (side & 1) * size;
    v->y = offsety + (side >> 1) * size;
    v->width = size;
    v->height = size;
    v->depth = 1;
    memset(m, 0, sizeof(m));
    m[0] = m[5] = 1.0f * ((float)size - border) / size;
    m[10] = -(farclip + nearclip) / (farclip - nearclip);
    m[11] = -1;
    m[14] = -2 * nearclip * farclip / (farclip - nearclip);
 
    Matrix4x4_FromArrayFloatGL(&basematrix, rectviewmatrix[side]);
    Matrix4x4_Invert_Full(&tempmatrix, &v->cameramatrix);
    Matrix4x4_Concat(&v->viewmatrix, &basematrix, &tempmatrix);
 
    if (nearplane)
        R_Viewport_ApplyNearClipPlaneFloatGL(v, m, nearplane[0], nearplane[1], nearplane[2], nearplane[3]);
 
    Matrix4x4_FromArrayFloatGL(&v->projectmatrix, m);
}

References border, float, Matrix4x4_Concat(), Matrix4x4_FromArrayFloatGL(), Matrix4x4_Invert_Full(), R_Viewport_ApplyNearClipPlaneFloatGL(), R_VIEWPORTTYPE_PERSPECTIVECUBESIDE, rectviewmatrix, size, and v.

Referenced by R_Shadow_RenderMode_ShadowMap().

R_Viewport_TransformToScreen()

void R_Viewport_TransformToScreen	(	const r_viewport_t *	v,
		const vec4_t	in,
		vec4_t	out )

Definition at line 383 of file gl_backend.c.

{
    vec4_t temp;
    float iw;
    Matrix4x4_Transform4 (&v->viewmatrix, in, temp);
    Matrix4x4_Transform4 (&v->projectmatrix, temp, out);
    iw = 1.0f / out[3];
    out[0] = v->x + (out[0] * iw + 1.0f) * v->width * 0.5f;
 
    // for an odd reason, inverting this is wrong for R_Shadow_ScissorForBBox (we then get badly scissored lights)
    //out[1] = v->y + v->height - (out[1] * iw + 1.0f) * v->height * 0.5f;
    out[1] = v->y + (out[1] * iw + 1.0f) * v->height * 0.5f;
 
    out[2] = v->z + (out[2] * iw + 1.0f) * v->depth * 0.5f;
}

References Matrix4x4_Transform4(), and v.

Referenced by R_DebugLine(), R_ScissorForBBox(), and R_Viewport_InitOrtho().

SCR_ScreenShot_f()

void SCR_ScreenShot_f

(

cmd_state_t *

cmd

)

Variable Documentation

bboxedges

int bboxedges[12][2]

static

Initial value:

=
{
    
    {0, 1}, 
    {0, 2}, 
    {1, 3}, 
    {2, 3}, 
    
    {4, 5}, 
    {4, 6}, 
    {5, 7}, 
    {6, 7}, 
    
    {0, 4}, 
    {1, 5}, 
    {2, 6}, 
    {3, 7}, 
}

Definition at line 411 of file gl_backend.c.

{
    // top
    {0, 1}, // +X
    {0, 2}, // +Y
    {1, 3}, // Y, +X
    {2, 3}, // X, +Y
    // bottom
    {4, 5}, // +X
    {4, 6}, // +Y
    {5, 7}, // Y, +X
    {6, 7}, // X, +Y
    // verticals
    {0, 4}, // +Z
    {1, 5}, // X, +Z
    {2, 6}, // Y, +Z
    {3, 7}, // XY, +Z
};

Referenced by R_ScissorForBBox().

buffertypename

const char* buffertypename[R_BUFFERDATA_COUNT] = {"vertex", "index16", "index32", "uniform"}

static

Definition at line 1951 of file gl_backend.c.

{"vertex", "index16", "index32", "uniform"};

Referenced by GL_Mesh_ListVBOs().

cubeviewmatrix

float cubeviewmatrix[6][16]

Definition at line 762 of file gl_backend.c.

{
    // standard cubemap projections
    { // +X
         0, 0,-1, 0,
         0,-1, 0, 0,
        -1, 0, 0, 0,
         0, 0, 0, 1,
    },
    { // -X
         0, 0, 1, 0,
         0,-1, 0, 0,
         1, 0, 0, 0,
         0, 0, 0, 1,
    },
    { // +Y
         1, 0, 0, 0,
         0, 0,-1, 0,
         0, 1, 0, 0,
         0, 0, 0, 1,
    },
    { // -Y
         1, 0, 0, 0,
         0, 0, 1, 0,
         0,-1, 0, 0,
         0, 0, 0, 1,
    },
    { // +Z
         1, 0, 0, 0,
         0,-1, 0, 0,
         0, 0,-1, 0,
         0, 0, 0, 1,
    },
    { // -Z
        -1, 0, 0, 0,
         0,-1, 0, 0,
         0, 0, 1, 0,
         0, 0, 0, 1,
    },
};

Referenced by R_Viewport_InitCubeSideView().

drawbuffers

const GLuint drawbuffers[4] = {GL_COLOR_ATTACHMENT0, GL_COLOR_ATTACHMENT1, GL_COLOR_ATTACHMENT2, GL_COLOR_ATTACHMENT3}

static

Definition at line 959 of file gl_backend.c.

{GL_COLOR_ATTACHMENT0, GL_COLOR_ATTACHMENT1, GL_COLOR_ATTACHMENT2, GL_COLOR_ATTACHMENT3};

Referenced by R_Mesh_CreateFramebufferObject().

gl_debug

cvar_t gl_debug = {CF_CLIENT, "gl_debug", "0", "enables OpenGL 4.3 debug output, 0 = off, 1 = HIGH severity only, 2 = also MEDIUM severity, 3 = also LOW severity messages. (note: enabling may not take effect until vid_restart on some drivers, and only X11 and Windows are known to support the debug context)"}

Definition at line 7 of file gl_backend.c.

{CF_CLIENT, "gl_debug", "0", "enables OpenGL 4.3 debug output, 0 = off, 1 = HIGH severity only, 2 = also MEDIUM severity, 3 = also LOW severity messages.  (note: enabling may not take effect until vid_restart on some drivers, and only X11 and Windows are known to support the debug context)"};

Referenced by gl_backend_init(), GL_Backend_ResetState(), and VID_InitModeGL().

gl_modelmatrix

matrix4x4_t gl_modelmatrix

Definition at line 24 of file gl_backend.c.

Referenced by R_EntityMatrix(), and R_SetViewport().

gl_modelmatrixchanged

qbool gl_modelmatrixchanged

Definition at line 31 of file gl_backend.c.

Referenced by R_EntityMatrix(), and R_SetViewport().

gl_modelview16f

float gl_modelview16f[16]

Definition at line 29 of file gl_backend.c.

Referenced by R_EntityMatrix(), and R_SetupShader_SetPermutationGLSL().

gl_modelviewmatrix

matrix4x4_t gl_modelviewmatrix

Definition at line 26 of file gl_backend.c.

Referenced by R_EntityMatrix().

gl_modelviewprojection16f

float gl_modelviewprojection16f[16]

Definition at line 30 of file gl_backend.c.

Referenced by R_EntityMatrix(), and R_SetupShader_SetPermutationGLSL().

gl_modelviewprojectionmatrix

matrix4x4_t gl_modelviewprojectionmatrix

Definition at line 28 of file gl_backend.c.

Referenced by R_EntityMatrix().

gl_paranoid

cvar_t gl_paranoid = {CF_CLIENT, "gl_paranoid", "0", "enables OpenGL error checking and other tests"}

Definition at line 8 of file gl_backend.c.

{CF_CLIENT, "gl_paranoid", "0", "enables OpenGL error checking and other tests"};

Referenced by gl_backend_init(), Host_Init(), Mod_BuildVBOs(), Mod_Mesh_Finalize(), R_Mesh_Draw(), R_Mesh_Start(), and R_Mesh_VertexPointer().

gl_polyblend

cvar_t gl_polyblend = {CF_CLIENT | CF_ARCHIVE, "gl_polyblend", "1", "tints view while underwater, hurt, etc"}

Definition at line 17 of file gl_backend.c.

{CF_CLIENT | CF_ARCHIVE, "gl_polyblend", "1", "tints view while underwater, hurt, etc"};

Referenced by gl_backend_init(), M_Menu_Options_Effects_AdjustSliders(), M_Options_Effects_Draw(), and V_CalcViewBlend().

gl_printcheckerror

cvar_t gl_printcheckerror = {CF_CLIENT, "gl_printcheckerror", "0", "prints all OpenGL error checks, useful to identify location of driver crashes"}

Definition at line 9 of file gl_backend.c.

{CF_CLIENT, "gl_printcheckerror", "0", "prints all OpenGL error checks, useful to identify location of driver crashes"};

Referenced by gl_backend_init(), Host_Init(), and R_Mesh_Start().

gl_projectionmatrix

matrix4x4_t gl_projectionmatrix

Definition at line 27 of file gl_backend.c.

Referenced by R_EntityMatrix(), and R_SetViewport().

gl_state

gl_state_t gl_state

static

Definition at line 183 of file gl_backend.c.

Referenced by GL_ActiveTexture(), GL_AlphaToCoverage(), gl_backend_devicelost(), GL_Backend_ResetState(), gl_backend_shutdown(), gl_backend_start(), GL_BindEBO(), GL_BindUBO(), GL_BindVBO(), GL_BlendFunc(), GL_Color(), GL_ColorMask(), GL_CullFace(), GL_DepthFunc(), GL_DepthMask(), GL_DepthRange(), GL_DepthTest(), GL_Mesh_ListVBOs(), GL_PolygonOffset(), GL_ScissorTest(), GL_SetMirrorState(), R_Mesh_ClearBindingsForTexture(), R_Mesh_ColorPointer(), R_Mesh_CreateFramebufferObject(), R_Mesh_CreateMeshBuffer(), R_Mesh_DestroyFramebufferObject(), R_Mesh_DestroyMeshBuffer(), R_Mesh_SetRenderTargets(), R_Mesh_TexBind(), R_Mesh_TexBound(), R_Mesh_TexCoordPointer(), and R_Mesh_VertexPointer().

gl_viewmatrix

matrix4x4_t gl_viewmatrix

Definition at line 25 of file gl_backend.c.

Referenced by R_EntityMatrix(), and R_SetViewport().

gl_viewport

r_viewport_t gl_viewport

Definition at line 23 of file gl_backend.c.

Referenced by R_GetViewport(), and R_SetViewport().

polygonelement3i

int polygonelement3i[(POLYGONELEMENTS_MAXPOINTS-2) *3]

Definition at line 240 of file gl_backend.c.

Referenced by gl_backend_init(), R_BeginCoronaQuery(), R_BlendView(), R_Bloom_MakeTexture(), R_DrawCorona(), R_DrawDebugModel(), R_DrawPortal_Callback(), R_Model_Sprite_Draw_TransparentCallback(), R_MotionBlurView(), R_Shadow_DrawCursor_TransparentCallback(), R_Shadow_DrawLightSprite_TransparentCallback(), SCR_DrawLoadingScreen(), and SCR_DrawLoadingStack().

polygonelement3s

unsigned short polygonelement3s[(POLYGONELEMENTS_MAXPOINTS-2) *3]

Definition at line 241 of file gl_backend.c.

Referenced by gl_backend_init(), R_BeginCoronaQuery(), R_BlendView(), R_Bloom_MakeTexture(), R_DrawCorona(), R_DrawDebugModel(), R_DrawPortal_Callback(), R_Model_Sprite_Draw_TransparentCallback(), R_MotionBlurView(), R_Shadow_DrawCursor_TransparentCallback(), R_Shadow_DrawLightSprite_TransparentCallback(), SCR_DrawLoadingScreen(), and SCR_DrawLoadingStack().

quadelement3i

int quadelement3i[QUADELEMENTS_MAXQUADS *6]

Definition at line 242 of file gl_backend.c.

Referenced by gl_backend_init().

quadelement3s

unsigned short quadelement3s[QUADELEMENTS_MAXQUADS *6]

Definition at line 243 of file gl_backend.c.

Referenced by gl_backend_init().

r_render

cvar_t r_render = {CF_CLIENT, "r_render", "1", "enables rendering 3D views (you want this on!)"}

Definition at line 11 of file gl_backend.c.

{CF_CLIENT, "r_render", "1", "enables rendering 3D views (you want this on!)"};

Referenced by gl_backend_init(), and R_Mesh_Draw().

r_renderview

cvar_t r_renderview = {CF_CLIENT, "r_renderview", "1", "enables rendering 3D views (you want this on!)"}

Definition at line 12 of file gl_backend.c.

{CF_CLIENT, "r_renderview", "1", "enables rendering 3D views (you want this on!)"};

Referenced by gl_backend_init(), and R_RenderView().

r_waterwarp

cvar_t r_waterwarp = {CF_CLIENT | CF_ARCHIVE, "r_waterwarp", "1", "warp view while underwater"}

Definition at line 13 of file gl_backend.c.

{CF_CLIENT | CF_ARCHIVE, "r_waterwarp", "1", "warp view while underwater"};

Referenced by gl_backend_init(), M_Menu_Options_Effects_AdjustSliders(), M_Options_Effects_Draw(), and V_CalcViewBlend().

rectviewmatrix

float rectviewmatrix[6][16]

Definition at line 802 of file gl_backend.c.

{
    // sign-preserving cubemap projections
    { // +X
         0, 0,-1, 0,
         0, 1, 0, 0,
         1, 0, 0, 0,
         0, 0, 0, 1,
    },
    { // -X
         0, 0, 1, 0,
         0, 1, 0, 0,
         1, 0, 0, 0,
         0, 0, 0, 1,
    },
    { // +Y
         1, 0, 0, 0,
         0, 0,-1, 0,
         0, 1, 0, 0,
         0, 0, 0, 1,
    },
    { // -Y
         1, 0, 0, 0,
         0, 0, 1, 0,
         0, 1, 0, 0,
         0, 0, 0, 1,
    },
    { // +Z
         1, 0, 0, 0,
         0, 1, 0, 0,
         0, 0,-1, 0,
         0, 0, 0, 1,
    },
    { // -Z
         1, 0, 0, 0,
         0, 1, 0, 0,
         0, 0, 1, 0,
         0, 0, 0, 1,
    },
};

Referenced by R_Viewport_InitRectSideView().

v_flipped

cvar_t v_flipped = {CF_CLIENT, "v_flipped", "0", "mirror the screen (poor man's left handed mode)"}

Definition at line 20 of file gl_backend.c.

{CF_CLIENT, "v_flipped", "0", "mirror the screen (poor man's left handed mode)"};

Referenced by CL_Input(), CL_UpdatePrydonCursor(), gl_backend_init(), R_SetViewport(), R_Viewport_InitOrtho3D(), R_Viewport_InitPerspective(), R_Viewport_InitPerspectiveInfinite(), S_SetChannelLayout(), S_Update(), VM_CL_project(), and VM_CL_unproject().

v_flipped_state

qbool v_flipped_state = false

Definition at line 21 of file gl_backend.c.

Referenced by GL_CullFace(), and GL_SetMirrorState().