#include "quakedef.h"
-#include "image.h"
+#include "cl_collision.h"
-cvar_t gl_mesh_maxverts = {0, "gl_mesh_maxverts", "1024"};
-cvar_t gl_mesh_floatcolors = {0, "gl_mesh_floatcolors", "1"};
-cvar_t gl_mesh_drawrangeelements = {0, "gl_mesh_drawrangeelements", "1"};
+cvar_t gl_mesh_drawrangeelements = {0, "gl_mesh_drawrangeelements", "1", "use glDrawRangeElements function if available instead of glDrawElements (for performance comparisons or bug testing)"};
+cvar_t gl_mesh_testarrayelement = {0, "gl_mesh_testarrayelement", "0", "use glBegin(GL_TRIANGLES);glArrayElement();glEnd(); primitives instead of glDrawElements (useful to test for driver bugs with glDrawElements)"};
+cvar_t gl_mesh_testmanualfeeding = {0, "gl_mesh_testmanualfeeding", "0", "use glBegin(GL_TRIANGLES);glTexCoord2f();glVertex3f();glEnd(); primitives instead of glDrawElements (useful to test for driver bugs with glDrawElements)"};
+cvar_t gl_paranoid = {0, "gl_paranoid", "0", "enables OpenGL error checking and other tests"};
+cvar_t gl_printcheckerror = {0, "gl_printcheckerror", "0", "prints all OpenGL error checks, useful to identify location of driver crashes"};
-cvar_t r_render = {0, "r_render", "1"};
-cvar_t gl_dither = {CVAR_SAVE, "gl_dither", "1"}; // whether or not to use dithering
-cvar_t gl_lockarrays = {0, "gl_lockarrays", "1"};
+cvar_t r_render = {0, "r_render", "1", "enables rendering calls (you want this on!)"};
+cvar_t r_waterwarp = {CVAR_SAVE, "r_waterwarp", "1", "warp view while underwater"};
+cvar_t gl_polyblend = {CVAR_SAVE, "gl_polyblend", "1", "tints view while underwater, hurt, etc"};
+cvar_t gl_dither = {CVAR_SAVE, "gl_dither", "1", "enables OpenGL dithering (16bit looks bad with this off)"};
+cvar_t gl_lockarrays = {0, "gl_lockarrays", "0", "enables use of glLockArraysEXT, may cause glitches with some broken drivers, and may be slower than normal"};
+cvar_t gl_lockarrays_minimumvertices = {0, "gl_lockarrays_minimumvertices", "1", "minimum number of vertices required for use of glLockArraysEXT, setting this too low may reduce performance"};
+cvar_t gl_vbo = {CVAR_SAVE, "gl_vbo", "1", "make use of GL_ARB_vertex_buffer_object extension to store static geometry in video memory for faster rendering"};
+
+cvar_t v_flipped = {0, "v_flipped", "0", "mirror the screen (poor man's left handed mode)"};
+qboolean v_flipped_state = false;
int gl_maxdrawrangeelementsvertices;
int gl_maxdrawrangeelementsindices;
break;
#endif
#ifdef GL_TABLE_TOO_LARGE
- case GL_TABLE_TOO_LARGE:
+ case GL_TABLE_TOO_LARGE:
Con_Printf("GL_TABLE_TOO_LARGE at %s:%i\n", filename, linenumber);
break;
#endif
}
#endif
-#define BACKENDACTIVECHECK if (!backendactive) Sys_Error("GL backend function called when backend is not active\n");
-
-int c_meshs, c_meshelements;
+#define BACKENDACTIVECHECK if (!backendactive) Sys_Error("GL backend function called when backend is not active");
void SCR_ScreenShot_f (void);
-// these are externally accessible
-int r_lightmapscalebit;
-float r_colorscale;
-float *varray_vertex;
-float *varray_color;
-float *varray_texcoord[MAX_TEXTUREUNITS];
-int mesh_maxverts;
-
static matrix4x4_t backend_viewmatrix;
static matrix4x4_t backend_modelmatrix;
static matrix4x4_t backend_modelviewmatrix;
-static matrix4x4_t backend_glmodelviewmatrix;
static matrix4x4_t backend_projectmatrix;
-static int backendunits, backendactive;
-static qbyte *varray_bcolor;
-static mempool_t *gl_backend_mempool;
+static unsigned int backendunits, backendimageunits, backendarrayunits, backendactive;
/*
note: here's strip order for a terrain row:
|\ |\ |\ |\ |
| \| \| \| \|
A--B--C--D--E
+clockwise
A0B, 01B, B1C, 12C, C2D, 23D, D3E, 34E
*elements++ = i;
*elements++ = i + 1;
*elements++ = i + row + 1;
-*/
-int polygonelements[768];
-void GL_Backend_AllocArrays(void)
+for (y = 0;y < rows - 1;y++)
{
- int i;
+ for (x = 0;x < columns - 1;x++)
+ {
+ i = y * rows + x;
+ *elements++ = i + columns;
+ *elements++ = i;
+ *elements++ = i + columns + 1;
+ *elements++ = i;
+ *elements++ = i + 1;
+ *elements++ = i + columns + 1;
+ }
+}
- for (i = 0;i < POLYGONELEMENTS_MAXPOINTS - 2;i++)
+alternative:
+0--1--2--3--4
+| /| /|\ | /|
+|/ |/ | \|/ |
+A--B--C--D--E
+counterclockwise
+
+for (y = 0;y < rows - 1;y++)
+{
+ for (x = 0;x < columns - 1;x++)
{
- polygonelements[i * 3 + 0] = 0;
- polygonelements[i * 3 + 1] = i + 1;
- polygonelements[i * 3 + 2] = i + 2;
+ i = y * rows + x;
+ *elements++ = i;
+ *elements++ = i + columns;
+ *elements++ = i + columns + 1;
+ *elements++ = i + columns;
+ *elements++ = i + columns + 1;
+ *elements++ = i + 1;
}
+}
+*/
- if (!gl_backend_mempool)
- gl_backend_mempool = Mem_AllocPool("GL_Backend");
+int polygonelements[(POLYGONELEMENTS_MAXPOINTS-2)*3];
+int quadelements[QUADELEMENTS_MAXQUADS*6];
- varray_vertex = Mem_Alloc(gl_backend_mempool, mesh_maxverts * sizeof(float[4]));
- varray_color = Mem_Alloc(gl_backend_mempool, mesh_maxverts * sizeof(float[4]));
- varray_bcolor = Mem_Alloc(gl_backend_mempool, mesh_maxverts * sizeof(qbyte[4]));
- for (i = 0;i < backendunits;i++)
- varray_texcoord[i] = Mem_Alloc(gl_backend_mempool, mesh_maxverts * sizeof(float[4]));
- for (;i < MAX_TEXTUREUNITS;i++)
- varray_texcoord[i] = NULL;
+void GL_Backend_AllocArrays(void)
+{
}
-void GL_Backend_FreeArrays(int resizingbuffers)
+void GL_Backend_FreeArrays(void)
{
- int i;
- if (resizingbuffers)
- Mem_EmptyPool(gl_backend_mempool);
- else
- Mem_FreePool(&gl_backend_mempool);
- varray_vertex = NULL;
- varray_color = NULL;
- varray_bcolor = NULL;
- for (i = 0;i < MAX_TEXTUREUNITS;i++)
- varray_texcoord[i] = NULL;
}
+void GL_VBOStats_f(void)
+{
+ GL_Mesh_ListVBOs(true);
+}
+
+typedef struct gl_bufferobjectinfo_s
+{
+ int target;
+ int object;
+ size_t size;
+ char name[MAX_QPATH];
+}
+gl_bufferobjectinfo_t;
+
+memexpandablearray_t gl_bufferobjectinfoarray;
+
static void gl_backend_start(void)
{
- Con_Printf("OpenGL Backend started with gl_mesh_maxverts %i\n", gl_mesh_maxverts.integer);
+ Con_Print("OpenGL Backend starting...\n");
+ CHECKGLERROR
+
if (qglDrawRangeElements != NULL)
{
+ CHECKGLERROR
qglGetIntegerv(GL_MAX_ELEMENTS_VERTICES, &gl_maxdrawrangeelementsvertices);
+ CHECKGLERROR
qglGetIntegerv(GL_MAX_ELEMENTS_INDICES, &gl_maxdrawrangeelementsindices);
CHECKGLERROR
Con_Printf("glDrawRangeElements detected (max vertices %i, max indices %i)\n", gl_maxdrawrangeelementsvertices, gl_maxdrawrangeelementsindices);
}
- if (strstr(gl_renderer, "3Dfx"))
+
+ backendunits = bound(1, gl_textureunits, MAX_TEXTUREUNITS);
+ backendimageunits = backendunits;
+ backendarrayunits = backendunits;
+ if (gl_support_fragment_shader)
{
- Con_Printf("3Dfx driver detected, forcing gl_mesh_floatcolors to 0 to prevent crashs\n");
- Cvar_SetValueQuick(&gl_mesh_floatcolors, 0);
+ CHECKGLERROR
+ qglGetIntegerv(GL_MAX_TEXTURE_IMAGE_UNITS_ARB, (int *)&backendimageunits);
+ CHECKGLERROR
+ qglGetIntegerv(GL_MAX_TEXTURE_COORDS_ARB, (int *)&backendarrayunits);
+ CHECKGLERROR
+ Con_Printf("GLSL shader support detected: texture units = %i texenv, %i image, %i array\n", backendunits, backendimageunits, backendarrayunits);
+ backendimageunits = bound(1, backendimageunits, MAX_TEXTUREUNITS);
+ backendarrayunits = bound(1, backendarrayunits, MAX_TEXTUREUNITS);
}
-
- backendunits = min(MAX_TEXTUREUNITS, gl_textureunits);
+ else if (backendunits > 1)
+ Con_Printf("multitexture detected: texture units = %i\n", backendunits);
+ else
+ Con_Printf("singletexture\n");
GL_Backend_AllocArrays();
+ Mem_ExpandableArray_NewArray(&gl_bufferobjectinfoarray, r_main_mempool, sizeof(gl_bufferobjectinfo_t), 128);
+
+ Con_Printf("OpenGL backend started.\n");
+
+ CHECKGLERROR
+
backendactive = true;
}
static void gl_backend_shutdown(void)
{
backendunits = 0;
+ backendimageunits = 0;
+ backendarrayunits = 0;
backendactive = false;
- Con_Printf("OpenGL Backend shutting down\n");
-
- GL_Backend_FreeArrays(false);
-}
+ Con_Print("OpenGL Backend shutting down\n");
-void GL_Backend_CheckCvars(void)
-{
- // 21760 is (65536 / 3) rounded off to a multiple of 128
- if (gl_mesh_maxverts.integer < 1024)
- Cvar_SetValueQuick(&gl_mesh_maxverts, 1024);
- if (gl_mesh_maxverts.integer > 21760)
- Cvar_SetValueQuick(&gl_mesh_maxverts, 21760);
-}
+ Mem_ExpandableArray_FreeArray(&gl_bufferobjectinfoarray);
-void GL_Backend_ResizeArrays(int numtriangles)
-{
- Cvar_SetValueQuick(&gl_mesh_maxverts, numtriangles);
- GL_Backend_CheckCvars();
- mesh_maxverts = gl_mesh_maxverts.integer;
- GL_Backend_FreeArrays(true);
- GL_Backend_AllocArrays();
+ GL_Backend_FreeArrays();
}
static void gl_backend_newmap(void)
void gl_backend_init(void)
{
+ int i;
+
+ for (i = 0;i < POLYGONELEMENTS_MAXPOINTS - 2;i++)
+ {
+ polygonelements[i * 3 + 0] = 0;
+ polygonelements[i * 3 + 1] = i + 1;
+ polygonelements[i * 3 + 2] = i + 2;
+ }
+ // elements for rendering a series of quads as triangles
+ for (i = 0;i < QUADELEMENTS_MAXQUADS;i++)
+ {
+ quadelements[i * 6 + 0] = i * 4;
+ quadelements[i * 6 + 1] = i * 4 + 1;
+ quadelements[i * 6 + 2] = i * 4 + 2;
+ quadelements[i * 6 + 3] = i * 4;
+ quadelements[i * 6 + 4] = i * 4 + 2;
+ quadelements[i * 6 + 5] = i * 4 + 3;
+ }
+
Cvar_RegisterVariable(&r_render);
+ Cvar_RegisterVariable(&r_waterwarp);
+ Cvar_RegisterVariable(&gl_polyblend);
+ Cvar_RegisterVariable(&v_flipped);
Cvar_RegisterVariable(&gl_dither);
Cvar_RegisterVariable(&gl_lockarrays);
+ Cvar_RegisterVariable(&gl_lockarrays_minimumvertices);
+ Cvar_RegisterVariable(&gl_vbo);
+ Cvar_RegisterVariable(&gl_paranoid);
+ Cvar_RegisterVariable(&gl_printcheckerror);
#ifdef NORENDER
Cvar_SetValue("r_render", 0);
#endif
- Cvar_RegisterVariable(&gl_mesh_maxverts);
- Cvar_RegisterVariable(&gl_mesh_floatcolors);
Cvar_RegisterVariable(&gl_mesh_drawrangeelements);
- GL_Backend_CheckCvars();
- R_RegisterModule("GL_Backend", gl_backend_start, gl_backend_shutdown, gl_backend_newmap);
-}
+ Cvar_RegisterVariable(&gl_mesh_testarrayelement);
+ Cvar_RegisterVariable(&gl_mesh_testmanualfeeding);
-void GL_SetupView_ViewPort (int x, int y, int width, int height)
-{
- if (!r_render.integer)
- return;
+ Cmd_AddCommand("gl_vbostats", GL_VBOStats_f, "prints a list of all buffer objects (vertex data and triangle elements) and total video memory used by them\n");
- // y is weird beause OpenGL is bottom to top, we use top to bottom
- qglViewport(x, vid.realheight - (y + height), width, height);
- CHECKGLERROR
+ R_RegisterModule("GL_Backend", gl_backend_start, gl_backend_shutdown, gl_backend_newmap);
}
+void GL_SetMirrorState(qboolean state);
+
void GL_SetupView_Orientation_Identity (void)
{
- Matrix4x4_CreateIdentity(&backend_viewmatrix);
+ backend_viewmatrix = identitymatrix;
+ GL_SetMirrorState(false);
memset(&backend_modelmatrix, 0, sizeof(backend_modelmatrix));
}
-void GL_SetupView_Orientation_FromEntity (vec3_t origin, vec3_t angles)
+void GL_SetupView_Orientation_FromEntity(const matrix4x4_t *matrix)
{
- Matrix4x4_CreateRotate(&backend_viewmatrix, -90, 1, 0, 0);
- Matrix4x4_ConcatRotate(&backend_viewmatrix, 90, 0, 0, 1);
- Matrix4x4_ConcatRotate(&backend_viewmatrix, -angles[2], 1, 0, 0);
- Matrix4x4_ConcatRotate(&backend_viewmatrix, -angles[0], 0, 1, 0);
- Matrix4x4_ConcatRotate(&backend_viewmatrix, -angles[1], 0, 0, 1);
- Matrix4x4_ConcatTranslate(&backend_viewmatrix, -origin[0], -origin[1], -origin[2]);
+ matrix4x4_t tempmatrix, basematrix;
+ Matrix4x4_Invert_Full(&tempmatrix, matrix);
+ Matrix4x4_CreateRotate(&basematrix, -90, 1, 0, 0);
+ Matrix4x4_ConcatRotate(&basematrix, 90, 0, 0, 1);
+ Matrix4x4_Concat(&backend_viewmatrix, &basematrix, &tempmatrix);
+
+ GL_SetMirrorState(v_flipped.integer);
+ if(v_flipped_state)
+ {
+ Matrix4x4_Transpose(&basematrix, &backend_viewmatrix);
+ Matrix4x4_ConcatScale3(&basematrix, -1, 1, 1);
+ Matrix4x4_Transpose(&backend_viewmatrix, &basematrix);
+ }
+
+ //Matrix4x4_ConcatRotate(&backend_viewmatrix, -angles[2], 1, 0, 0);
+ //Matrix4x4_ConcatRotate(&backend_viewmatrix, -angles[0], 0, 1, 0);
+ //Matrix4x4_ConcatRotate(&backend_viewmatrix, -angles[1], 0, 0, 1);
+ //Matrix4x4_ConcatTranslate(&backend_viewmatrix, -origin[0], -origin[1], -origin[2]);
memset(&backend_modelmatrix, 0, sizeof(backend_modelmatrix));
}
-void GL_SetupView_Mode_Perspective (double fovx, double fovy, double zNear, double zFar)
+void GL_SetupView_Mode_Perspective (double frustumx, double frustumy, double zNear, double zFar)
{
- double xmax, ymax;
-
- if (!r_render.integer)
- return;
+ double m[16];
// set up viewpoint
+ CHECKGLERROR
qglMatrixMode(GL_PROJECTION);CHECKGLERROR
- qglLoadIdentity ();CHECKGLERROR
- // pyramid slopes
- xmax = zNear * tan(fovx * M_PI / 360.0);
- ymax = zNear * tan(fovy * M_PI / 360.0);
+ qglLoadIdentity();CHECKGLERROR
// set view pyramid
- qglFrustum(-xmax, xmax, -ymax, ymax, zNear, zFar);CHECKGLERROR
+ qglFrustum(-frustumx * zNear, frustumx * zNear, -frustumy * zNear, frustumy * zNear, zNear, zFar);CHECKGLERROR
+ qglGetDoublev(GL_PROJECTION_MATRIX, m);CHECKGLERROR
+ Matrix4x4_FromArrayDoubleGL(&backend_projectmatrix, m);
qglMatrixMode(GL_MODELVIEW);CHECKGLERROR
GL_SetupView_Orientation_Identity();
+ CHECKGLERROR
}
-void GL_SetupView_Mode_PerspectiveInfiniteFarClip (double fovx, double fovy, double zNear)
+void GL_SetupView_Mode_PerspectiveInfiniteFarClip (double frustumx, double frustumy, double zNear)
{
double nudge, m[16];
- if (!r_render.integer)
- return;
-
// set up viewpoint
+ CHECKGLERROR
qglMatrixMode(GL_PROJECTION);CHECKGLERROR
- qglLoadIdentity ();CHECKGLERROR
+ qglLoadIdentity();CHECKGLERROR
// set view pyramid
nudge = 1.0 - 1.0 / (1<<23);
- m[ 0] = 1.0 / tan(fovx * M_PI / 360.0);
+ m[ 0] = 1.0 / frustumx;
m[ 1] = 0;
m[ 2] = 0;
m[ 3] = 0;
m[ 4] = 0;
- m[ 5] = 1.0 / tan(fovy * M_PI / 360.0);
+ m[ 5] = 1.0 / frustumy;
m[ 6] = 0;
m[ 7] = 0;
m[ 8] = 0;
m[ 9] = 0;
- m[10] = -1 * nudge;
- m[11] = -1 * nudge;
+ m[10] = -nudge;
+ m[11] = -1;
m[12] = 0;
m[13] = 0;
m[14] = -2 * zNear * nudge;
m[15] = 0;
- qglLoadMatrixd(m);
+ qglLoadMatrixd(m);CHECKGLERROR
qglMatrixMode(GL_MODELVIEW);CHECKGLERROR
GL_SetupView_Orientation_Identity();
- backend_projectmatrix.m[0][0] = m[0];
- backend_projectmatrix.m[1][0] = m[1];
- backend_projectmatrix.m[2][0] = m[2];
- backend_projectmatrix.m[3][0] = m[3];
- backend_projectmatrix.m[0][1] = m[4];
- backend_projectmatrix.m[1][1] = m[5];
- backend_projectmatrix.m[2][1] = m[6];
- backend_projectmatrix.m[3][1] = m[7];
- backend_projectmatrix.m[0][2] = m[8];
- backend_projectmatrix.m[1][2] = m[9];
- backend_projectmatrix.m[2][2] = m[10];
- backend_projectmatrix.m[3][2] = m[11];
- backend_projectmatrix.m[0][3] = m[12];
- backend_projectmatrix.m[1][3] = m[13];
- backend_projectmatrix.m[2][3] = m[14];
- backend_projectmatrix.m[3][3] = m[15];
+ CHECKGLERROR
+ Matrix4x4_FromArrayDoubleGL(&backend_projectmatrix, m);
}
void GL_SetupView_Mode_Ortho (double x1, double y1, double x2, double y2, double zNear, double zFar)
{
- if (!r_render.integer)
- return;
+ double m[16];
// set up viewpoint
+ CHECKGLERROR
qglMatrixMode(GL_PROJECTION);CHECKGLERROR
- qglLoadIdentity ();CHECKGLERROR
- qglOrtho(x1, x2, y2, y1, zNear, zFar);
+ qglLoadIdentity();CHECKGLERROR
+ qglOrtho(x1, x2, y2, y1, zNear, zFar);CHECKGLERROR
+ qglGetDoublev(GL_PROJECTION_MATRIX, m);CHECKGLERROR
+ Matrix4x4_FromArrayDoubleGL(&backend_projectmatrix, m);
qglMatrixMode(GL_MODELVIEW);CHECKGLERROR
GL_SetupView_Orientation_Identity();
+ CHECKGLERROR
+}
+
+void GL_SetupView_ApplyCustomNearClipPlane(double normalx, double normaly, double normalz, double dist)
+{
+ double matrix[16];
+ double q[4];
+ double d;
+ float clipPlane[4], v3[3], v4[3];
+ float normal[3];
+
+ // This is Olique Depth Projection from http://www.terathon.com/code/oblique.php
+ // modified to fit in this codebase.
+
+ VectorSet(normal, normalx, normaly, normalz);
+ Matrix4x4_Transform3x3(&backend_viewmatrix, normal, clipPlane);
+ VectorScale(normal, dist, v3);
+ Matrix4x4_Transform(&backend_viewmatrix, v3, v4);
+ // FIXME: LordHavoc: I think this can be done more efficiently somehow but I can't remember the technique
+ clipPlane[3] = -DotProduct(v4, clipPlane);
+
+#if 0
+{
+ // testing code for comparing results
+ float clipPlane2[4];
+ VectorCopy4(clipPlane, clipPlane2);
+ R_Mesh_Matrix(&identitymatrix);
+ VectorSet(q, normal[0], normal[1], normal[2], -dist);
+ qglClipPlane(GL_CLIP_PLANE0, q);
+ qglGetClipPlane(GL_CLIP_PLANE0, q);
+ VectorCopy4(q, clipPlane);
+}
+#endif
+
+ // 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
+ Matrix4x4_ToArrayDoubleGL(&backend_projectmatrix, matrix);
+
+ q[0] = ((clipPlane[0] < 0.0f ? -1.0f : clipPlane[0] > 0.0f ? 1.0f : 0.0f) + matrix[8]) / matrix[0];
+ q[1] = ((clipPlane[1] < 0.0f ? -1.0f : clipPlane[1] > 0.0f ? 1.0f : 0.0f) + matrix[9]) / matrix[5];
+ q[2] = -1.0f;
+ q[3] = (1.0f + matrix[10]) / matrix[14];
+
+ // Calculate the scaled plane vector
+ d = 2.0f / DotProduct4(clipPlane, q);
+
+ // Replace the third row of the projection matrix
+ matrix[2] = clipPlane[0] * d;
+ matrix[6] = clipPlane[1] * d;
+ matrix[10] = clipPlane[2] * d + 1.0f;
+ matrix[14] = clipPlane[3] * d;
+
+ // Load it back into OpenGL
+ qglMatrixMode(GL_PROJECTION);CHECKGLERROR
+ qglLoadMatrixd(matrix);CHECKGLERROR
+ qglMatrixMode(GL_MODELVIEW);CHECKGLERROR
+ CHECKGLERROR
+ Matrix4x4_FromArrayDoubleGL(&backend_projectmatrix, matrix);
}
typedef struct gltextureunit_s
{
+ const void *pointer_texcoord;
+ size_t pointer_texcoord_offset;
+ int pointer_texcoord_buffer;
int t1d, t2d, t3d, tcubemap;
int arrayenabled;
- float rgbscale, alphascale;
+ unsigned int arraycomponents;
+ int rgbscale, alphascale;
int combinergb, combinealpha;
// FIXME: add more combine stuff
+ // texmatrixenabled exists only to avoid unnecessary texmatrix compares
+ int texmatrixenabled;
+ matrix4x4_t matrix;
}
gltextureunit_t;
-static struct
+static struct gl_state_s
{
+ int cullface;
+ int cullfaceenable;
int blendfunc1;
int blendfunc2;
int blend;
GLboolean depthmask;
- int depthdisable;
- int unit;
- int clientunit;
+ int colormask; // stored as bottom 4 bits: r g b a (3 2 1 0 order)
+ int depthtest;
+ float depthrange[2];
+ float polygonoffset[2];
+ int alphatest;
+ int scissortest;
+ unsigned int unit;
+ unsigned int clientunit;
gltextureunit_t units[MAX_TEXTUREUNITS];
- int colorarray;
+ float color4f[4];
+ int lockrange_first;
+ int lockrange_count;
+ int vertexbufferobject;
+ int elementbufferobject;
+ qboolean pointer_color_enabled;
+ const void *pointer_vertex;
+ const void *pointer_color;
+ size_t pointer_vertex_offset;
+ size_t pointer_color_offset;
+ int pointer_vertex_buffer;
+ int pointer_color_buffer;
}
gl_state;
+static void GL_BindVBO(int bufferobject)
+{
+ if (gl_state.vertexbufferobject != bufferobject)
+ {
+ gl_state.vertexbufferobject = bufferobject;
+ CHECKGLERROR
+ qglBindBufferARB(GL_ARRAY_BUFFER_ARB, bufferobject);
+ CHECKGLERROR
+ }
+}
+
+static void GL_BindEBO(int bufferobject)
+{
+ if (gl_state.elementbufferobject != bufferobject)
+ {
+ gl_state.elementbufferobject = bufferobject;
+ CHECKGLERROR
+ qglBindBufferARB(GL_ELEMENT_ARRAY_BUFFER_ARB, bufferobject);
+ CHECKGLERROR
+ }
+}
+
void GL_SetupTextureState(void)
{
- int i;
+ unsigned int i;
gltextureunit_t *unit;
- for (i = 0;i < backendunits;i++)
+ CHECKGLERROR
+ gl_state.unit = MAX_TEXTUREUNITS;
+ gl_state.clientunit = MAX_TEXTUREUNITS;
+ for (i = 0;i < MAX_TEXTUREUNITS;i++)
{
- if (qglActiveTexture)
- qglActiveTexture(GL_TEXTURE0_ARB + (gl_state.unit = i));CHECKGLERROR
- if (qglClientActiveTexture)
- qglClientActiveTexture(GL_TEXTURE0_ARB + (gl_state.clientunit = i));CHECKGLERROR
unit = gl_state.units + i;
unit->t1d = 0;
unit->t2d = 0;
unit->t3d = 0;
unit->tcubemap = 0;
+ unit->arrayenabled = false;
+ unit->arraycomponents = 0;
+ unit->pointer_texcoord = NULL;
+ unit->pointer_texcoord_buffer = 0;
+ unit->pointer_texcoord_offset = 0;
unit->rgbscale = 1;
unit->alphascale = 1;
unit->combinergb = GL_MODULATE;
unit->combinealpha = GL_MODULATE;
- unit->arrayenabled = false;
- qglDisableClientState(GL_TEXTURE_COORD_ARRAY);CHECKGLERROR
- if (gl_texture3d || gl_texturecubemap)
+ unit->texmatrixenabled = false;
+ unit->matrix = identitymatrix;
+ }
+
+ for (i = 0;i < backendimageunits;i++)
+ {
+ GL_ActiveTexture(i);
+ qglBindTexture(GL_TEXTURE_1D, 0);CHECKGLERROR
+ qglBindTexture(GL_TEXTURE_2D, 0);CHECKGLERROR
+ if (gl_texture3d)
{
- qglTexCoordPointer(3, GL_FLOAT, sizeof(float[4]), varray_texcoord[i]);CHECKGLERROR
+ qglBindTexture(GL_TEXTURE_3D, 0);CHECKGLERROR
}
- else
+ if (gl_texturecubemap)
{
- qglTexCoordPointer(2, GL_FLOAT, sizeof(float[4]), varray_texcoord[i]);CHECKGLERROR
+ qglBindTexture(GL_TEXTURE_CUBE_MAP_ARB, 0);CHECKGLERROR
}
+ }
+
+ for (i = 0;i < backendarrayunits;i++)
+ {
+ GL_ClientActiveTexture(i);
+ GL_BindVBO(0);
+ qglTexCoordPointer(2, GL_FLOAT, sizeof(float[2]), NULL);CHECKGLERROR
+ qglDisableClientState(GL_TEXTURE_COORD_ARRAY);CHECKGLERROR
+ }
+
+ for (i = 0;i < backendunits;i++)
+ {
+ GL_ActiveTexture(i);
qglDisable(GL_TEXTURE_1D);CHECKGLERROR
qglDisable(GL_TEXTURE_2D);CHECKGLERROR
if (gl_texture3d)
{
qglDisable(GL_TEXTURE_CUBE_MAP_ARB);CHECKGLERROR
}
+ qglMatrixMode(GL_TEXTURE);CHECKGLERROR
+ qglLoadIdentity();CHECKGLERROR
+ qglMatrixMode(GL_MODELVIEW);CHECKGLERROR
if (gl_combine.integer)
{
qglTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_ARB);CHECKGLERROR
qglTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB, GL_MODULATE);CHECKGLERROR
qglTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB_ARB, GL_TEXTURE);CHECKGLERROR
qglTexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_RGB_ARB, GL_PREVIOUS_ARB);CHECKGLERROR
- qglTexEnvi(GL_TEXTURE_ENV, GL_SOURCE2_RGB_ARB, GL_CONSTANT_ARB);CHECKGLERROR
+ qglTexEnvi(GL_TEXTURE_ENV, GL_SOURCE2_RGB_ARB, GL_TEXTURE);CHECKGLERROR // for GL_INTERPOLATE_ARB mode
qglTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB_ARB, GL_SRC_COLOR);CHECKGLERROR
qglTexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_RGB_ARB, GL_SRC_COLOR);CHECKGLERROR
qglTexEnvi(GL_TEXTURE_ENV, GL_OPERAND2_RGB_ARB, GL_SRC_ALPHA);CHECKGLERROR
{
qglTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);CHECKGLERROR
}
+ CHECKGLERROR
}
+ CHECKGLERROR
}
void GL_Backend_ResetState(void)
{
memset(&gl_state, 0, sizeof(gl_state));
- gl_state.depthdisable = false;
+ gl_state.depthtest = true;
+ gl_state.alphatest = false;
gl_state.blendfunc1 = GL_ONE;
gl_state.blendfunc2 = GL_ZERO;
gl_state.blend = false;
gl_state.depthmask = GL_TRUE;
- gl_state.colorarray = false;
+ 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 = v_flipped_state ? GL_BACK : GL_FRONT; // quake is backwards, this culls back faces
+ gl_state.cullfaceenable = true;
+ gl_state.polygonoffset[0] = 0;
+ gl_state.polygonoffset[1] = 0;
- qglDisableClientState(GL_COLOR_ARRAY);CHECKGLERROR
- qglDisableClientState(GL_VERTEX_ARRAY);CHECKGLERROR
+ CHECKGLERROR
- qglEnable(GL_CULL_FACE);CHECKGLERROR
- qglCullFace(GL_FRONT);CHECKGLERROR
- qglEnable(GL_DEPTH_TEST);CHECKGLERROR
+ qglColorMask(1, 1, 1, 1);
+ qglAlphaFunc(GL_GEQUAL, 0.5);CHECKGLERROR
+ qglDisable(GL_ALPHA_TEST);CHECKGLERROR
qglBlendFunc(gl_state.blendfunc1, gl_state.blendfunc2);CHECKGLERROR
qglDisable(GL_BLEND);CHECKGLERROR
+ qglCullFace(gl_state.cullface);CHECKGLERROR
+ qglEnable(GL_CULL_FACE);CHECKGLERROR
+ qglDepthFunc(GL_LEQUAL);CHECKGLERROR
+ qglEnable(GL_DEPTH_TEST);CHECKGLERROR
qglDepthMask(gl_state.depthmask);CHECKGLERROR
- qglVertexPointer(3, GL_FLOAT, sizeof(float[4]), varray_vertex);CHECKGLERROR
- qglEnableClientState(GL_VERTEX_ARRAY);CHECKGLERROR
- if (gl_mesh_floatcolors.integer)
- {
- qglColorPointer(4, GL_FLOAT, sizeof(float[4]), varray_color);CHECKGLERROR
- }
- else
+ qglPolygonOffset(gl_state.polygonoffset[0], gl_state.polygonoffset[1]);
+
+ if (gl_support_arb_vertex_buffer_object)
{
- qglColorPointer(4, GL_UNSIGNED_BYTE, sizeof(qbyte[4]), varray_bcolor);CHECKGLERROR
+ qglBindBufferARB(GL_ARRAY_BUFFER_ARB, 0);
+ qglBindBufferARB(GL_ELEMENT_ARRAY_BUFFER_ARB, 0);
}
+
+ qglVertexPointer(3, GL_FLOAT, sizeof(float[3]), NULL);CHECKGLERROR
+ qglEnableClientState(GL_VERTEX_ARRAY);CHECKGLERROR
+
+ qglColorPointer(4, GL_FLOAT, sizeof(float[4]), NULL);CHECKGLERROR
+ qglDisableClientState(GL_COLOR_ARRAY);CHECKGLERROR
+
+ GL_Color(0, 0, 0, 0);
GL_Color(1, 1, 1, 1);
GL_SetupTextureState();
}
-void GL_UseColorArray(void)
+void GL_ActiveTexture(unsigned int num)
{
- if (!gl_state.colorarray)
+ if (gl_state.unit != num)
{
- gl_state.colorarray = true;
- qglEnableClientState(GL_COLOR_ARRAY);CHECKGLERROR
+ gl_state.unit = num;
+ if (qglActiveTexture)
+ {
+ CHECKGLERROR
+ qglActiveTexture(GL_TEXTURE0_ARB + gl_state.unit);
+ CHECKGLERROR
+ }
}
}
-void GL_Color(float cr, float cg, float cb, float ca)
+void GL_ClientActiveTexture(unsigned int num)
{
- if (gl_state.colorarray)
+ if (gl_state.clientunit != num)
{
- gl_state.colorarray = false;
- qglDisableClientState(GL_COLOR_ARRAY);CHECKGLERROR
+ gl_state.clientunit = num;
+ if (qglActiveTexture)
+ {
+ CHECKGLERROR
+ qglClientActiveTexture(GL_TEXTURE0_ARB + gl_state.clientunit);
+ CHECKGLERROR
+ }
}
- qglColor4f(cr, cg, cb, ca);
}
-void GL_TransformToScreen(const vec4_t in, vec4_t out)
+void GL_BlendFunc(int blendfunc1, int blendfunc2)
{
- vec4_t temp;
- float iw;
- Matrix4x4_Transform4 (&backend_viewmatrix, in, temp);
- Matrix4x4_Transform4 (&backend_projectmatrix, temp, out);
- iw = 1.0f / out[3];
- out[0] = r_refdef.x + (out[0] * iw + 1.0f) * r_refdef.width * 0.5f;
- out[1] = r_refdef.y + (out[1] * iw + 1.0f) * r_refdef.height * 0.5f;
- out[2] = out[2] * iw;
+ if (gl_state.blendfunc1 != blendfunc1 || gl_state.blendfunc2 != blendfunc2)
+ {
+ CHECKGLERROR
+ qglBlendFunc(gl_state.blendfunc1 = blendfunc1, gl_state.blendfunc2 = blendfunc2);CHECKGLERROR
+ if (gl_state.blendfunc2 == GL_ZERO)
+ {
+ if (gl_state.blendfunc1 == GL_ONE)
+ {
+ if (gl_state.blend)
+ {
+ gl_state.blend = 0;
+ qglDisable(GL_BLEND);CHECKGLERROR
+ }
+ }
+ else
+ {
+ if (!gl_state.blend)
+ {
+ gl_state.blend = 1;
+ qglEnable(GL_BLEND);CHECKGLERROR
+ }
+ }
+ }
+ else
+ {
+ if (!gl_state.blend)
+ {
+ gl_state.blend = 1;
+ qglEnable(GL_BLEND);CHECKGLERROR
+ }
+ }
+ }
}
-// called at beginning of frame
-void R_Mesh_Start(void)
+void GL_DepthMask(int state)
{
- BACKENDACTIVECHECK
-
- CHECKGLERROR
-
- GL_Backend_CheckCvars();
- if (mesh_maxverts != gl_mesh_maxverts.integer)
- GL_Backend_ResizeArrays(gl_mesh_maxverts.integer);
-
- GL_Backend_ResetState();
+ if (gl_state.depthmask != state)
+ {
+ CHECKGLERROR
+ qglDepthMask(gl_state.depthmask = state);CHECKGLERROR
+ }
}
-int gl_backend_rebindtextures;
-
-void GL_ConvertColorsFloatToByte(int numverts)
+void GL_DepthTest(int state)
{
- int i, k, total;
- // LordHavoc: to avoid problems with aliasing (treating memory as two
- // different types - exactly what this is doing), these must be volatile
- // (or a union)
- volatile int *icolor;
- volatile float *fcolor;
- qbyte *bcolor;
-
- total = numverts * 4;
-
- // shift float to have 8bit fraction at base of number
- fcolor = varray_color;
- for (i = 0;i < total;)
+ if (gl_state.depthtest != state)
{
- fcolor[i ] += 32768.0f;
- fcolor[i + 1] += 32768.0f;
- fcolor[i + 2] += 32768.0f;
- fcolor[i + 3] += 32768.0f;
- i += 4;
+ gl_state.depthtest = state;
+ CHECKGLERROR
+ if (gl_state.depthtest)
+ {
+ qglEnable(GL_DEPTH_TEST);CHECKGLERROR
+ }
+ else
+ {
+ qglDisable(GL_DEPTH_TEST);CHECKGLERROR
+ }
}
+}
- // then read as integer and kill float bits...
- icolor = (int *)varray_color;
- bcolor = varray_bcolor;
- for (i = 0;i < total;)
+void GL_DepthRange(float nearfrac, float farfrac)
+{
+ if (gl_state.depthrange[0] != nearfrac || gl_state.depthrange[1] != farfrac)
{
- k = icolor[i ] & 0x7FFFFF;if (k > 255) k = 255;bcolor[i ] = (qbyte) k;
- k = icolor[i + 1] & 0x7FFFFF;if (k > 255) k = 255;bcolor[i + 1] = (qbyte) k;
- k = icolor[i + 2] & 0x7FFFFF;if (k > 255) k = 255;bcolor[i + 2] = (qbyte) k;
- k = icolor[i + 3] & 0x7FFFFF;if (k > 255) k = 255;bcolor[i + 3] = (qbyte) k;
- i += 4;
+ gl_state.depthrange[0] = nearfrac;
+ gl_state.depthrange[1] = farfrac;
+ qglDepthRange(nearfrac, farfrac);
}
}
-void GL_DrawRangeElements(int firstvert, int endvert, int indexcount, const int *index)
+void GL_PolygonOffset(float planeoffset, float depthoffset)
{
- int arraylocked = false;
- c_meshs++;
- c_meshelements += indexcount;
- if (indexcount == 0 || endvert == firstvert)
- {
- Con_Printf("GL_DrawRangeElements(%d, %d, %d, %08p);\n", firstvert, endvert, indexcount, index);
- return;
- }
- if (gl_supportslockarrays && gl_lockarrays.integer)
- {
- qglLockArraysEXT(firstvert, endvert - firstvert);
- CHECKGLERROR
- arraylocked = true;
- }
- if (gl_mesh_drawrangeelements.integer && qglDrawRangeElements != NULL)
- qglDrawRangeElements(GL_TRIANGLES, firstvert, endvert, indexcount, GL_UNSIGNED_INT, (const GLuint *) index);
- else
- qglDrawElements(GL_TRIANGLES, indexcount, GL_UNSIGNED_INT, (const GLuint *) index);
- CHECKGLERROR
- if (arraylocked)
+ if (gl_state.polygonoffset[0] != planeoffset || gl_state.polygonoffset[1] != depthoffset)
{
- qglUnlockArraysEXT();
- CHECKGLERROR
- arraylocked = false;
+ gl_state.polygonoffset[0] = planeoffset;
+ gl_state.polygonoffset[1] = depthoffset;
+ qglPolygonOffset(planeoffset, depthoffset);
}
}
-// enlarges geometry buffers if they are too small
-void _R_Mesh_ResizeCheck(int numverts)
+void GL_SetMirrorState(qboolean state)
{
- if (numverts > mesh_maxverts)
+ if(!state != !v_flipped_state)
{
- BACKENDACTIVECHECK
- GL_Backend_ResizeArrays(numverts + 100);
- GL_Backend_ResetState();
+ // change cull face mode!
+ if(gl_state.cullface == GL_BACK)
+ qglCullFace((gl_state.cullface = GL_FRONT));
+ else if(gl_state.cullface == GL_FRONT)
+ qglCullFace((gl_state.cullface = GL_BACK));
}
+ v_flipped_state = state;
}
-// renders the mesh
-void R_Mesh_Draw(int numverts, int numtriangles, const int *elements)
+void GL_CullFace(int state)
{
- BACKENDACTIVECHECK
-
CHECKGLERROR
- if (gl_state.colorarray && !gl_mesh_floatcolors.integer)
- GL_ConvertColorsFloatToByte(numverts);
- if (!r_render.integer)
- return;
- GL_DrawRangeElements(0, numverts, numtriangles * 3, elements);
-}
-
-// restores backend state, used when done with 3D rendering
-void R_Mesh_Finish(void)
-{
- int i;
- BACKENDACTIVECHECK
+ if(v_flipped_state)
+ {
+ if(state == GL_FRONT)
+ state = GL_BACK;
+ else if(state == GL_BACK)
+ state = GL_FRONT;
+ }
- for (i = backendunits - 1;i >= 0;i--)
+ if (state != GL_NONE)
{
- if (qglActiveTexture)
- qglActiveTexture(GL_TEXTURE0_ARB + i);CHECKGLERROR
- if (qglClientActiveTexture)
- qglClientActiveTexture(GL_TEXTURE0_ARB + i);CHECKGLERROR
- qglDisableClientState(GL_TEXTURE_COORD_ARRAY);CHECKGLERROR
- qglDisable(GL_TEXTURE_1D);CHECKGLERROR
- qglDisable(GL_TEXTURE_2D);CHECKGLERROR
- if (gl_texture3d)
+ if (!gl_state.cullfaceenable)
{
- qglDisable(GL_TEXTURE_3D);CHECKGLERROR
+ gl_state.cullfaceenable = true;
+ qglEnable(GL_CULL_FACE);CHECKGLERROR
}
- if (gl_texturecubemap)
+ if (gl_state.cullface != state)
{
- qglDisable(GL_TEXTURE_CUBE_MAP_ARB);CHECKGLERROR
+ gl_state.cullface = state;
+ qglCullFace(gl_state.cullface);CHECKGLERROR
}
- qglTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);CHECKGLERROR
- if (gl_combine.integer)
+ }
+ else
+ {
+ if (gl_state.cullfaceenable)
{
- qglTexEnvi(GL_TEXTURE_ENV, GL_RGB_SCALE_ARB, 1);CHECKGLERROR
- qglTexEnvi(GL_TEXTURE_ENV, GL_ALPHA_SCALE, 1);CHECKGLERROR
+ gl_state.cullfaceenable = false;
+ qglDisable(GL_CULL_FACE);CHECKGLERROR
}
}
- qglDisableClientState(GL_COLOR_ARRAY);CHECKGLERROR
+}
+
+void GL_AlphaTest(int state)
+{
+ if (gl_state.alphatest != state)
+ {
+ gl_state.alphatest = state;
+ CHECKGLERROR
+ if (gl_state.alphatest)
+ {
+ qglEnable(GL_ALPHA_TEST);CHECKGLERROR
+ }
+ else
+ {
+ qglDisable(GL_ALPHA_TEST);CHECKGLERROR
+ }
+ }
+}
+
+void GL_ColorMask(int r, int g, int b, int a)
+{
+ int state = r*8 + g*4 + b*2 + a*1;
+ if (gl_state.colormask != state)
+ {
+ gl_state.colormask = state;
+ CHECKGLERROR
+ qglColorMask((GLboolean)r, (GLboolean)g, (GLboolean)b, (GLboolean)a);CHECKGLERROR
+ }
+}
+
+void GL_Color(float cr, float cg, float cb, float ca)
+{
+ 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;
+ CHECKGLERROR
+ qglColor4f(gl_state.color4f[0], gl_state.color4f[1], gl_state.color4f[2], gl_state.color4f[3]);
+ CHECKGLERROR
+ }
+}
+
+void GL_LockArrays(int first, int count)
+{
+ if (count < gl_lockarrays_minimumvertices.integer)
+ {
+ first = 0;
+ count = 0;
+ }
+ if (gl_state.lockrange_count != count || gl_state.lockrange_first != first)
+ {
+ if (gl_state.lockrange_count)
+ {
+ gl_state.lockrange_count = 0;
+ CHECKGLERROR
+ qglUnlockArraysEXT();
+ CHECKGLERROR
+ }
+ if (count && gl_supportslockarrays && gl_lockarrays.integer && r_render.integer)
+ {
+ gl_state.lockrange_first = first;
+ gl_state.lockrange_count = count;
+ CHECKGLERROR
+ qglLockArraysEXT(first, count);
+ CHECKGLERROR
+ }
+ }
+}
+
+void GL_Scissor (int x, int y, int width, int height)
+{
+ CHECKGLERROR
+ qglScissor(x, vid.height - (y + height),width,height);
+ CHECKGLERROR
+}
+
+void GL_ScissorTest(int state)
+{
+ if(gl_state.scissortest == state)
+ return;
+
+ CHECKGLERROR
+ if((gl_state.scissortest = state))
+ qglEnable(GL_SCISSOR_TEST);
+ else
+ qglDisable(GL_SCISSOR_TEST);
+ CHECKGLERROR
+}
+
+void GL_Clear(int mask)
+{
+ CHECKGLERROR
+ qglClear(mask);CHECKGLERROR
+}
+
+void GL_TransformToScreen(const vec4_t in, vec4_t out)
+{
+ vec4_t temp;
+ float iw;
+ Matrix4x4_Transform4 (&backend_viewmatrix, in, temp);
+ Matrix4x4_Transform4 (&backend_projectmatrix, temp, out);
+ iw = 1.0f / out[3];
+ out[0] = r_view.x + (out[0] * iw + 1.0f) * r_view.width * 0.5f;
+ out[1] = r_view.y + r_view.height - (out[1] * iw + 1.0f) * r_view.height * 0.5f;
+ out[2] = r_view.z + (out[2] * iw + 1.0f) * r_view.depth * 0.5f;
+}
+
+// called at beginning of frame
+void R_Mesh_Start(void)
+{
+ BACKENDACTIVECHECK
+ CHECKGLERROR
+ if (gl_printcheckerror.integer && !gl_paranoid.integer)
+ {
+ Con_Printf("WARNING: gl_printcheckerror is on but gl_paranoid is off, turning it on...\n");
+ Cvar_SetValueQuick(&gl_paranoid, 1);
+ }
+ GL_Backend_ResetState();
+}
+
+qboolean GL_Backend_CompileShader(int programobject, GLenum shadertypeenum, const char *shadertype, int numstrings, const char **strings)
+{
+ int shaderobject;
+ int shadercompiled;
+ char compilelog[MAX_INPUTLINE];
+ shaderobject = qglCreateShaderObjectARB(shadertypeenum);CHECKGLERROR
+ if (!shaderobject)
+ return false;
+ qglShaderSourceARB(shaderobject, numstrings, strings, NULL);CHECKGLERROR
+ qglCompileShaderARB(shaderobject);CHECKGLERROR
+ qglGetObjectParameterivARB(shaderobject, GL_OBJECT_COMPILE_STATUS_ARB, &shadercompiled);CHECKGLERROR
+ qglGetInfoLogARB(shaderobject, sizeof(compilelog), NULL, compilelog);CHECKGLERROR
+ if (compilelog[0])
+ Con_DPrintf("%s shader compile log:\n%s\n", shadertype, compilelog);
+ if (!shadercompiled)
+ {
+ qglDeleteObjectARB(shaderobject);CHECKGLERROR
+ return false;
+ }
+ qglAttachObjectARB(programobject, shaderobject);CHECKGLERROR
+ qglDeleteObjectARB(shaderobject);CHECKGLERROR
+ return true;
+}
+
+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)
+{
+ GLint programlinked;
+ GLuint programobject = 0;
+ char linklog[MAX_INPUTLINE];
+ CHECKGLERROR
+
+ programobject = qglCreateProgramObjectARB();CHECKGLERROR
+ if (!programobject)
+ return 0;
+
+ if (vertexstrings_count && !GL_Backend_CompileShader(programobject, GL_VERTEX_SHADER_ARB, "vertex", vertexstrings_count, vertexstrings_list))
+ goto cleanup;
+
+#ifdef GL_GEOMETRY_SHADER_ARB
+ if (geometrystrings_count && !GL_Backend_CompileShader(programobject, GL_GEOMETRY_SHADER_ARB, "geometry", geometrystrings_count, geometrystrings_list))
+ goto cleanup;
+#endif
+
+ if (fragmentstrings_count && !GL_Backend_CompileShader(programobject, GL_FRAGMENT_SHADER_ARB, "fragment", fragmentstrings_count, fragmentstrings_list))
+ goto cleanup;
+
+ qglLinkProgramARB(programobject);CHECKGLERROR
+ qglGetObjectParameterivARB(programobject, GL_OBJECT_LINK_STATUS_ARB, &programlinked);CHECKGLERROR
+ qglGetInfoLogARB(programobject, sizeof(linklog), NULL, linklog);CHECKGLERROR
+ if (linklog[0])
+ {
+ 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:
+ qglDeleteObjectARB(programobject);CHECKGLERROR
+ return 0;
+}
+
+void GL_Backend_FreeProgram(unsigned int prog)
+{
+ CHECKGLERROR
+ qglDeleteObjectARB(prog);
+ CHECKGLERROR
+}
+
+int gl_backend_rebindtextures;
+
+void GL_Backend_RenumberElements(int *out, int count, const int *in, int offset)
+{
+ int i;
+ if (offset)
+ {
+ for (i = 0;i < count;i++)
+ *out++ = *in++ + offset;
+ }
+ else
+ memcpy(out, in, sizeof(*out) * count);
+}
+
+// renders triangles using vertices from the active arrays
+int paranoidblah = 0;
+void R_Mesh_Draw(int firstvertex, int numvertices, int numtriangles, const int *elements, int bufferobject, size_t bufferoffset)
+{
+ unsigned int numelements = numtriangles * 3;
+ if (numvertices < 3 || numtriangles < 1)
+ {
+ Con_Printf("R_Mesh_Draw(%d, %d, %d, %8p, %i, %p);\n", firstvertex, numvertices, numtriangles, elements, bufferobject, (void *)bufferoffset);
+ return;
+ }
+ if (!gl_vbo.integer)
+ bufferobject = 0;
+ CHECKGLERROR
+ r_refdef.stats.meshes++;
+ r_refdef.stats.meshes_elements += numelements;
+ if (gl_paranoid.integer)
+ {
+ unsigned int i, j, size;
+ const int *p;
+ // note: there's no validation done here on buffer objects because it
+ // is somewhat difficult to get at the data, and gl_paranoid can be
+ // used without buffer objects if the need arises
+ // (the data could be gotten using glMapBuffer but it would be very
+ // slow due to uncachable video memory reads)
+ if (!qglIsEnabled(GL_VERTEX_ARRAY))
+ Con_Print("R_Mesh_Draw: vertex array not enabled\n");
+ CHECKGLERROR
+ if (gl_state.pointer_vertex)
+ for (j = 0, size = numvertices * 3, p = (int *)((float *)gl_state.pointer_vertex + firstvertex * 3);j < size;j++, p++)
+ paranoidblah += *p;
+ if (gl_state.pointer_color_enabled)
+ {
+ if (!qglIsEnabled(GL_COLOR_ARRAY))
+ Con_Print("R_Mesh_Draw: color array set but not enabled\n");
+ CHECKGLERROR
+ if (gl_state.pointer_color && gl_state.pointer_color_enabled)
+ for (j = 0, size = numvertices * 4, p = (int *)((float *)gl_state.pointer_color + firstvertex * 4);j < size;j++, p++)
+ paranoidblah += *p;
+ }
+ for (i = 0;i < backendarrayunits;i++)
+ {
+ if (gl_state.units[i].arrayenabled)
+ {
+ GL_ClientActiveTexture(i);
+ if (!qglIsEnabled(GL_TEXTURE_COORD_ARRAY))
+ Con_Print("R_Mesh_Draw: texcoord array set but not enabled\n");
+ CHECKGLERROR
+ if (gl_state.units[i].pointer_texcoord && gl_state.units[i].arrayenabled)
+ for (j = 0, size = numvertices * gl_state.units[i].arraycomponents, p = (int *)((float *)gl_state.units[i].pointer_texcoord + firstvertex * gl_state.units[i].arraycomponents);j < size;j++, p++)
+ paranoidblah += *p;
+ }
+ }
+ for (i = 0;i < (unsigned int) numtriangles * 3;i++)
+ {
+ if (elements[i] < firstvertex || elements[i] >= firstvertex + numvertices)
+ {
+ Con_Printf("R_Mesh_Draw: invalid vertex index %i (outside range %i - %i) in elements list\n", elements[i], firstvertex, firstvertex + numvertices);
+ return;
+ }
+ }
+ CHECKGLERROR
+ }
+ if (r_render.integer)
+ {
+ CHECKGLERROR
+ if (gl_mesh_testmanualfeeding.integer)
+ {
+ unsigned int i, j;
+ const GLfloat *p;
+ qglBegin(GL_TRIANGLES);
+ for (i = 0;i < (unsigned int) numtriangles * 3;i++)
+ {
+ for (j = 0;j < backendarrayunits;j++)
+ {
+ if (gl_state.units[j].pointer_texcoord && gl_state.units[j].arrayenabled)
+ {
+ if (backendarrayunits > 1)
+ {
+ if (gl_state.units[j].arraycomponents == 4)
+ {
+ p = ((const GLfloat *)(gl_state.units[j].pointer_texcoord)) + elements[i] * 4;
+ qglMultiTexCoord4f(GL_TEXTURE0_ARB + j, p[0], p[1], p[2], p[3]);
+ }
+ else if (gl_state.units[j].arraycomponents == 3)
+ {
+ p = ((const GLfloat *)(gl_state.units[j].pointer_texcoord)) + elements[i] * 3;
+ qglMultiTexCoord3f(GL_TEXTURE0_ARB + j, p[0], p[1], p[2]);
+ }
+ else if (gl_state.units[j].arraycomponents == 2)
+ {
+ p = ((const GLfloat *)(gl_state.units[j].pointer_texcoord)) + elements[i] * 2;
+ qglMultiTexCoord2f(GL_TEXTURE0_ARB + j, p[0], p[1]);
+ }
+ else
+ {
+ p = ((const GLfloat *)(gl_state.units[j].pointer_texcoord)) + elements[i] * 1;
+ qglMultiTexCoord1f(GL_TEXTURE0_ARB + j, p[0]);
+ }
+ }
+ else
+ {
+ if (gl_state.units[j].arraycomponents == 4)
+ {
+ p = ((const GLfloat *)(gl_state.units[j].pointer_texcoord)) + elements[i] * 4;
+ qglTexCoord4f(p[0], p[1], p[2], p[3]);
+ }
+ else if (gl_state.units[j].arraycomponents == 3)
+ {
+ p = ((const GLfloat *)(gl_state.units[j].pointer_texcoord)) + elements[i] * 3;
+ qglTexCoord3f(p[0], p[1], p[2]);
+ }
+ else if (gl_state.units[j].arraycomponents == 2)
+ {
+ p = ((const GLfloat *)(gl_state.units[j].pointer_texcoord)) + elements[i] * 2;
+ qglTexCoord2f(p[0], p[1]);
+ }
+ else
+ {
+ p = ((const GLfloat *)(gl_state.units[j].pointer_texcoord)) + elements[i] * 1;
+ qglTexCoord1f(p[0]);
+ }
+ }
+ }
+ }
+ if (gl_state.pointer_color && gl_state.pointer_color_enabled)
+ {
+ p = ((const GLfloat *)(gl_state.pointer_color)) + elements[i] * 4;
+ qglColor4f(p[0], p[1], p[2], p[3]);
+ }
+ p = ((const GLfloat *)(gl_state.pointer_vertex)) + elements[i] * 3;
+ qglVertex3f(p[0], p[1], p[2]);
+ }
+ qglEnd();
+ CHECKGLERROR
+ }
+ else if (gl_mesh_testarrayelement.integer)
+ {
+ int i;
+ qglBegin(GL_TRIANGLES);
+ for (i = 0;i < numtriangles * 3;i++)
+ {
+ qglArrayElement(elements[i]);
+ }
+ qglEnd();
+ CHECKGLERROR
+ }
+ else if (gl_mesh_drawrangeelements.integer && qglDrawRangeElements != NULL)
+ {
+ GL_BindEBO(bufferobject);
+ qglDrawRangeElements(GL_TRIANGLES, firstvertex, firstvertex + numvertices, numelements, GL_UNSIGNED_INT, bufferobject ? (void *)bufferoffset : elements);
+ CHECKGLERROR
+ }
+ else
+ {
+ GL_BindEBO(bufferobject);
+ qglDrawElements(GL_TRIANGLES, numelements, GL_UNSIGNED_INT, bufferobject ? (void *)bufferoffset : elements);
+ CHECKGLERROR
+ }
+ }
+}
+
+// restores backend state, used when done with 3D rendering
+void R_Mesh_Finish(void)
+{
+ unsigned int i;
+ BACKENDACTIVECHECK
+ CHECKGLERROR
+ GL_LockArrays(0, 0);
+ CHECKGLERROR
+
+ for (i = 0;i < backendimageunits;i++)
+ {
+ GL_ActiveTexture(i);
+ qglBindTexture(GL_TEXTURE_1D, 0);CHECKGLERROR
+ qglBindTexture(GL_TEXTURE_2D, 0);CHECKGLERROR
+ if (gl_texture3d)
+ {
+ qglBindTexture(GL_TEXTURE_3D, 0);CHECKGLERROR
+ }
+ if (gl_texturecubemap)
+ {
+ qglBindTexture(GL_TEXTURE_CUBE_MAP_ARB, 0);CHECKGLERROR
+ }
+ }
+ for (i = 0;i < backendarrayunits;i++)
+ {
+ GL_ActiveTexture(backendarrayunits - 1 - i);
+ qglDisableClientState(GL_TEXTURE_COORD_ARRAY);CHECKGLERROR
+ }
+ for (i = 0;i < backendunits;i++)
+ {
+ GL_ActiveTexture(backendunits - 1 - i);
+ qglDisable(GL_TEXTURE_1D);CHECKGLERROR
+ qglDisable(GL_TEXTURE_2D);CHECKGLERROR
+ if (gl_texture3d)
+ {
+ qglDisable(GL_TEXTURE_3D);CHECKGLERROR
+ }
+ if (gl_texturecubemap)
+ {
+ qglDisable(GL_TEXTURE_CUBE_MAP_ARB);CHECKGLERROR
+ }
+ qglTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);CHECKGLERROR
+ if (gl_combine.integer)
+ {
+ qglTexEnvi(GL_TEXTURE_ENV, GL_RGB_SCALE_ARB, 1);CHECKGLERROR
+ qglTexEnvi(GL_TEXTURE_ENV, GL_ALPHA_SCALE, 1);CHECKGLERROR
+ }
+ }
+ qglDisableClientState(GL_COLOR_ARRAY);CHECKGLERROR
qglDisableClientState(GL_VERTEX_ARRAY);CHECKGLERROR
qglDisable(GL_BLEND);CHECKGLERROR
qglBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);CHECKGLERROR
}
+int R_Mesh_CreateStaticBufferObject(unsigned int target, void *data, size_t size, const char *name)
+{
+ gl_bufferobjectinfo_t *info;
+ GLuint bufferobject;
+
+ if (!gl_vbo.integer)
+ return 0;
+
+ qglGenBuffersARB(1, &bufferobject);
+ switch(target)
+ {
+ case GL_ELEMENT_ARRAY_BUFFER_ARB: GL_BindEBO(bufferobject);break;
+ case GL_ARRAY_BUFFER_ARB: GL_BindVBO(bufferobject);break;
+ default: Sys_Error("R_Mesh_CreateStaticBufferObject: unknown target type %i\n", target);return 0;
+ }
+ qglBufferDataARB(target, size, data, GL_STATIC_DRAW_ARB);
+
+ info = Mem_ExpandableArray_AllocRecord(&gl_bufferobjectinfoarray);
+ memset(info, 0, sizeof(*info));
+ info->target = target;
+ info->object = bufferobject;
+ info->size = size;
+ strlcpy(info->name, name, sizeof(info->name));
+
+ return (int)bufferobject;
+}
+
+void R_Mesh_DestroyBufferObject(int bufferobject)
+{
+ int i, endindex;
+ gl_bufferobjectinfo_t *info;
+
+ qglDeleteBuffersARB(1, (GLuint *)&bufferobject);
+
+ endindex = Mem_ExpandableArray_IndexRange(&gl_bufferobjectinfoarray);
+ for (i = 0;i < endindex;i++)
+ {
+ info = Mem_ExpandableArray_RecordAtIndex(&gl_bufferobjectinfoarray, i);
+ if (!info)
+ continue;
+ if (info->object == bufferobject)
+ {
+ Mem_ExpandableArray_FreeRecord(&gl_bufferobjectinfoarray, (void *)info);
+ break;
+ }
+ }
+}
+
+void GL_Mesh_ListVBOs(qboolean printeach)
+{
+ int i, endindex;
+ size_t ebocount = 0, ebomemory = 0;
+ size_t vbocount = 0, vbomemory = 0;
+ gl_bufferobjectinfo_t *info;
+ endindex = Mem_ExpandableArray_IndexRange(&gl_bufferobjectinfoarray);
+ for (i = 0;i < endindex;i++)
+ {
+ info = Mem_ExpandableArray_RecordAtIndex(&gl_bufferobjectinfoarray, i);
+ if (!info)
+ continue;
+ switch(info->target)
+ {
+ case GL_ELEMENT_ARRAY_BUFFER_ARB: ebocount++;ebomemory += info->size;if (printeach) Con_Printf("EBO #%i %s = %i bytes\n", info->object, info->name, (int)info->size);break;
+ case GL_ARRAY_BUFFER_ARB: vbocount++;vbomemory += info->size;if (printeach) Con_Printf("VBO #%i %s = %i bytes\n", info->object, info->name, (int)info->size);break;
+ default: Con_Printf("gl_vbostats: unknown target type %i\n", info->target);break;
+ }
+ }
+ Con_Printf("vertex buffers: %i element buffers totalling %i bytes (%.3f MB), %i vertex buffers totalling %i bytes (%.3f MB), combined %i bytes (%.3fMB)\n", (int)ebocount, (int)ebomemory, ebomemory / 1048576.0, (int)vbocount, (int)vbomemory, vbomemory / 1048576.0, (int)(ebomemory + vbomemory), (ebomemory + vbomemory) / 1048576.0);
+}
+
void R_Mesh_Matrix(const matrix4x4_t *matrix)
{
if (memcmp(matrix, &backend_modelmatrix, sizeof(matrix4x4_t)))
{
+ double glmatrix[16];
backend_modelmatrix = *matrix;
Matrix4x4_Concat(&backend_modelviewmatrix, &backend_viewmatrix, matrix);
- Matrix4x4_Transpose(&backend_glmodelviewmatrix, &backend_modelviewmatrix);
- qglLoadMatrixf(&backend_glmodelviewmatrix.m[0][0]);
+ Matrix4x4_ToArrayDoubleGL(&backend_modelviewmatrix, glmatrix);
+ CHECKGLERROR
+ qglLoadMatrixd(glmatrix);CHECKGLERROR
+ }
+}
+
+void R_Mesh_VertexPointer(const float *vertex3f, int bufferobject, size_t bufferoffset)
+{
+ if (!gl_vbo.integer)
+ bufferobject = 0;
+ if (gl_state.pointer_vertex != vertex3f || gl_state.pointer_vertex_buffer != bufferobject || gl_state.pointer_vertex_offset != bufferoffset)
+ {
+ gl_state.pointer_vertex = vertex3f;
+ gl_state.pointer_vertex_buffer = bufferobject;
+ gl_state.pointer_vertex_offset = bufferoffset;
+ CHECKGLERROR
+ GL_BindVBO(bufferobject);
+ qglVertexPointer(3, GL_FLOAT, sizeof(float[3]), bufferobject ? (void *)bufferoffset : vertex3f);CHECKGLERROR
+ }
+}
+
+void R_Mesh_ColorPointer(const float *color4f, int bufferobject, size_t bufferoffset)
+{
+ // note: this can not rely on bufferobject to decide whether a color array
+ // is supplied, because surfmesh_t shares one vbo for all arrays, which
+ // means that a valid vbo may be supplied even if there is no color array.
+ if (color4f)
+ {
+ if (!gl_vbo.integer)
+ bufferobject = 0;
+ // caller wants color array enabled
+ if (!gl_state.pointer_color_enabled)
+ {
+ gl_state.pointer_color_enabled = true;
+ CHECKGLERROR
+ qglEnableClientState(GL_COLOR_ARRAY);CHECKGLERROR
+ }
+ if (gl_state.pointer_color != color4f || gl_state.pointer_color_buffer != bufferobject || gl_state.pointer_color_offset != bufferoffset)
+ {
+ gl_state.pointer_color = color4f;
+ gl_state.pointer_color_buffer = bufferobject;
+ gl_state.pointer_color_offset = bufferoffset;
+ CHECKGLERROR
+ GL_BindVBO(bufferobject);
+ qglColorPointer(4, GL_FLOAT, sizeof(float[4]), bufferobject ? (void *)bufferoffset : color4f);CHECKGLERROR
+ }
+ }
+ else
+ {
+ // caller wants color array disabled
+ if (gl_state.pointer_color_enabled)
+ {
+ gl_state.pointer_color_enabled = false;
+ CHECKGLERROR
+ qglDisableClientState(GL_COLOR_ARRAY);CHECKGLERROR
+ // when color array is on the glColor gets trashed, set it again
+ qglColor4f(gl_state.color4f[0], gl_state.color4f[1], gl_state.color4f[2], gl_state.color4f[3]);CHECKGLERROR
+ }
+ }
+}
+
+void R_Mesh_TexCoordPointer(unsigned int unitnum, unsigned int numcomponents, const float *texcoord, int bufferobject, size_t bufferoffset)
+{
+ gltextureunit_t *unit = gl_state.units + unitnum;
+ // update array settings
+ CHECKGLERROR
+ // note: there is no need to check bufferobject here because all cases
+ // that involve a valid bufferobject also supply a texcoord array
+ if (texcoord)
+ {
+ if (!gl_vbo.integer)
+ bufferobject = 0;
+ // texture array unit is enabled, enable the array
+ if (!unit->arrayenabled)
+ {
+ unit->arrayenabled = true;
+ GL_ClientActiveTexture(unitnum);
+ qglEnableClientState(GL_TEXTURE_COORD_ARRAY);CHECKGLERROR
+ }
+ // texcoord array
+ if (unit->pointer_texcoord != texcoord || unit->pointer_texcoord_buffer != bufferobject || unit->pointer_texcoord_offset != bufferoffset || unit->arraycomponents != numcomponents)
+ {
+ unit->pointer_texcoord = texcoord;
+ unit->pointer_texcoord_buffer = bufferobject;
+ unit->pointer_texcoord_offset = bufferoffset;
+ unit->arraycomponents = numcomponents;
+ GL_ClientActiveTexture(unitnum);
+ GL_BindVBO(bufferobject);
+ qglTexCoordPointer(unit->arraycomponents, GL_FLOAT, sizeof(float) * unit->arraycomponents, bufferobject ? (void *)bufferoffset : texcoord);CHECKGLERROR
+ }
+ }
+ else
+ {
+ // texture array unit is disabled, disable the array
+ if (unit->arrayenabled)
+ {
+ unit->arrayenabled = false;
+ GL_ClientActiveTexture(unitnum);
+ qglDisableClientState(GL_TEXTURE_COORD_ARRAY);CHECKGLERROR
+ }
+ }
+}
+
+void R_Mesh_TexBindAll(unsigned int unitnum, int tex1d, int tex2d, int tex3d, int texcubemap)
+{
+ gltextureunit_t *unit = gl_state.units + unitnum;
+ if (unitnum >= backendimageunits)
+ return;
+ // update 1d texture binding
+ if (unit->t1d != tex1d)
+ {
+ GL_ActiveTexture(unitnum);
+ if (unitnum < backendunits)
+ {
+ if (tex1d)
+ {
+ if (unit->t1d == 0)
+ {
+ qglEnable(GL_TEXTURE_1D);CHECKGLERROR
+ }
+ }
+ else
+ {
+ if (unit->t1d)
+ {
+ qglDisable(GL_TEXTURE_1D);CHECKGLERROR
+ }
+ }
+ }
+ unit->t1d = tex1d;
+ qglBindTexture(GL_TEXTURE_1D, unit->t1d);CHECKGLERROR
+ }
+ // update 2d texture binding
+ if (unit->t2d != tex2d)
+ {
+ GL_ActiveTexture(unitnum);
+ if (unitnum < backendunits)
+ {
+ if (tex2d)
+ {
+ if (unit->t2d == 0)
+ {
+ qglEnable(GL_TEXTURE_2D);CHECKGLERROR
+ }
+ }
+ else
+ {
+ if (unit->t2d)
+ {
+ qglDisable(GL_TEXTURE_2D);CHECKGLERROR
+ }
+ }
+ }
+ unit->t2d = tex2d;
+ qglBindTexture(GL_TEXTURE_2D, unit->t2d);CHECKGLERROR
+ }
+ // update 3d texture binding
+ if (unit->t3d != tex3d)
+ {
+ GL_ActiveTexture(unitnum);
+ if (unitnum < backendunits)
+ {
+ if (tex3d)
+ {
+ if (unit->t3d == 0)
+ {
+ qglEnable(GL_TEXTURE_3D);CHECKGLERROR
+ }
+ }
+ else
+ {
+ if (unit->t3d)
+ {
+ qglDisable(GL_TEXTURE_3D);CHECKGLERROR
+ }
+ }
+ }
+ unit->t3d = tex3d;
+ qglBindTexture(GL_TEXTURE_3D, unit->t3d);CHECKGLERROR
+ }
+ // update cubemap texture binding
+ if (unit->tcubemap != texcubemap)
+ {
+ GL_ActiveTexture(unitnum);
+ if (unitnum < backendunits)
+ {
+ if (texcubemap)
+ {
+ if (unit->tcubemap == 0)
+ {
+ qglEnable(GL_TEXTURE_CUBE_MAP_ARB);CHECKGLERROR
+ }
+ }
+ else
+ {
+ if (unit->tcubemap)
+ {
+ qglDisable(GL_TEXTURE_CUBE_MAP_ARB);CHECKGLERROR
+ }
+ }
+ }
+ unit->tcubemap = texcubemap;
+ qglBindTexture(GL_TEXTURE_CUBE_MAP_ARB, unit->tcubemap);CHECKGLERROR
}
}
-// sets up the requested state
-void R_Mesh_MainState(const rmeshstate_t *m)
+void R_Mesh_TexBind1D(unsigned int unitnum, int texnum)
{
- BACKENDACTIVECHECK
-
- if (gl_state.blendfunc1 != m->blendfunc1 || gl_state.blendfunc2 != m->blendfunc2)
+ gltextureunit_t *unit = gl_state.units + unitnum;
+ if (unitnum >= backendimageunits)
+ return;
+ // update 1d texture binding
+ if (unit->t1d != texnum)
{
- qglBlendFunc(gl_state.blendfunc1 = m->blendfunc1, gl_state.blendfunc2 = m->blendfunc2);CHECKGLERROR
- if (gl_state.blendfunc2 == GL_ZERO)
+ GL_ActiveTexture(unitnum);
+ if (unitnum < backendunits)
{
- if (gl_state.blendfunc1 == GL_ONE)
+ if (texnum)
{
- if (gl_state.blend)
+ if (unit->t1d == 0)
{
- gl_state.blend = 0;
- qglDisable(GL_BLEND);CHECKGLERROR
+ qglEnable(GL_TEXTURE_1D);CHECKGLERROR
}
}
else
{
- if (!gl_state.blend)
+ if (unit->t1d)
{
- gl_state.blend = 1;
- qglEnable(GL_BLEND);CHECKGLERROR
+ qglDisable(GL_TEXTURE_1D);CHECKGLERROR
}
}
}
- else
+ unit->t1d = texnum;
+ qglBindTexture(GL_TEXTURE_1D, unit->t1d);CHECKGLERROR
+ }
+ // update 2d texture binding
+ if (unit->t2d)
+ {
+ GL_ActiveTexture(unitnum);
+ if (unitnum < backendunits)
{
- if (!gl_state.blend)
+ if (unit->t2d)
{
- gl_state.blend = 1;
- qglEnable(GL_BLEND);CHECKGLERROR
+ qglDisable(GL_TEXTURE_2D);CHECKGLERROR
}
}
+ unit->t2d = 0;
+ qglBindTexture(GL_TEXTURE_2D, unit->t2d);CHECKGLERROR
}
- if (gl_state.depthdisable != m->depthdisable)
+ // update 3d texture binding
+ if (unit->t3d)
{
- gl_state.depthdisable = m->depthdisable;
- if (gl_state.depthdisable)
- qglDisable(GL_DEPTH_TEST);
- else
- qglEnable(GL_DEPTH_TEST);
+ GL_ActiveTexture(unitnum);
+ if (unitnum < backendunits)
+ {
+ if (unit->t3d)
+ {
+ qglDisable(GL_TEXTURE_3D);CHECKGLERROR
+ }
+ }
+ unit->t3d = 0;
+ qglBindTexture(GL_TEXTURE_3D, unit->t3d);CHECKGLERROR
}
- if (gl_state.depthmask != (m->blendfunc2 == GL_ZERO || m->depthwrite))
+ // update cubemap texture binding
+ if (unit->tcubemap)
{
- qglDepthMask(gl_state.depthmask = (m->blendfunc2 == GL_ZERO || m->depthwrite));CHECKGLERROR
+ GL_ActiveTexture(unitnum);
+ if (unitnum < backendunits)
+ {
+ if (unit->tcubemap)
+ {
+ qglDisable(GL_TEXTURE_CUBE_MAP_ARB);CHECKGLERROR
+ }
+ }
+ unit->tcubemap = 0;
+ qglBindTexture(GL_TEXTURE_CUBE_MAP_ARB, unit->tcubemap);CHECKGLERROR
}
}
-void R_Mesh_TextureState(const rmeshstate_t *m)
+void R_Mesh_TexBind(unsigned int unitnum, int texnum)
{
- int i, combinergb, combinealpha;
- float scale;
- gltextureunit_t *unit;
-
- BACKENDACTIVECHECK
-
- if (gl_backend_rebindtextures)
- {
- gl_backend_rebindtextures = false;
- GL_SetupTextureState();
- }
-
- for (i = 0;i < backendunits;i++)
+ gltextureunit_t *unit = gl_state.units + unitnum;
+ if (unitnum >= backendimageunits)
+ return;
+ // update 1d texture binding
+ if (unit->t1d)
{
- unit = gl_state.units + i;
- if (unit->t1d != m->tex1d[i] || unit->t2d != m->tex[i] || unit->t3d != m->tex3d[i] || unit->tcubemap != m->texcubemap[i])
+ GL_ActiveTexture(unitnum);
+ if (unitnum < backendunits)
{
- if (gl_state.unit != i)
+ if (unit->t1d)
{
- qglActiveTexture(GL_TEXTURE0_ARB + (gl_state.unit = i));CHECKGLERROR
+ qglDisable(GL_TEXTURE_1D);CHECKGLERROR
}
- if (m->tex1d[i] || m->tex[i] || m->tex3d[i] || m->texcubemap[i])
+ }
+ unit->t1d = 0;
+ qglBindTexture(GL_TEXTURE_1D, unit->t1d);CHECKGLERROR
+ }
+ // update 2d texture binding
+ if (unit->t2d != texnum)
+ {
+ GL_ActiveTexture(unitnum);
+ if (unitnum < backendunits)
+ {
+ if (texnum)
{
- if (!unit->arrayenabled)
+ if (unit->t2d == 0)
{
- unit->arrayenabled = true;
- if (gl_state.clientunit != i)
- {
- qglClientActiveTexture(GL_TEXTURE0_ARB + (gl_state.clientunit = i));CHECKGLERROR
- }
- qglEnableClientState(GL_TEXTURE_COORD_ARRAY);CHECKGLERROR
+ qglEnable(GL_TEXTURE_2D);CHECKGLERROR
}
}
else
{
- if (unit->arrayenabled)
+ if (unit->t2d)
{
- unit->arrayenabled = false;
- if (gl_state.clientunit != i)
- {
- qglClientActiveTexture(GL_TEXTURE0_ARB + (gl_state.clientunit = i));CHECKGLERROR
- }
- qglDisableClientState(GL_TEXTURE_COORD_ARRAY);CHECKGLERROR
+ qglDisable(GL_TEXTURE_2D);CHECKGLERROR
}
}
- combinergb = m->texcombinergb[i];
- combinealpha = m->texcombinealpha[i];
- if (!combinergb)
- combinergb = GL_MODULATE;
- if (!combinealpha)
- combinealpha = GL_MODULATE;
- if (unit->combinergb != combinergb)
+ }
+ unit->t2d = texnum;
+ qglBindTexture(GL_TEXTURE_2D, unit->t2d);CHECKGLERROR
+ }
+ // update 3d texture binding
+ if (unit->t3d)
+ {
+ GL_ActiveTexture(unitnum);
+ if (unitnum < backendunits)
+ {
+ if (unit->t3d)
{
- unit->combinergb = combinergb;
- if (gl_combine.integer)
- {
- qglTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB, unit->combinergb);CHECKGLERROR
- }
- else
- {
- qglTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, unit->combinergb);CHECKGLERROR
- }
+ qglDisable(GL_TEXTURE_3D);CHECKGLERROR
}
- if (unit->combinealpha != combinealpha)
+ }
+ unit->t3d = 0;
+ qglBindTexture(GL_TEXTURE_3D, unit->t3d);CHECKGLERROR
+ }
+ // update cubemap texture binding
+ if (unit->tcubemap != 0)
+ {
+ GL_ActiveTexture(unitnum);
+ if (unitnum < backendunits)
+ {
+ if (unit->tcubemap)
{
- unit->combinealpha = combinealpha;
- if (gl_combine.integer)
- {
- qglTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA_ARB, unit->combinealpha);CHECKGLERROR
- }
+ qglDisable(GL_TEXTURE_CUBE_MAP_ARB);CHECKGLERROR
}
- if (unit->t1d != m->tex1d[i])
+ }
+ unit->tcubemap = 0;
+ qglBindTexture(GL_TEXTURE_CUBE_MAP_ARB, unit->tcubemap);CHECKGLERROR
+ }
+}
+
+void R_Mesh_TexBind3D(unsigned int unitnum, int texnum)
+{
+ gltextureunit_t *unit = gl_state.units + unitnum;
+ if (unitnum >= backendimageunits)
+ return;
+ // update 1d texture binding
+ if (unit->t1d)
+ {
+ GL_ActiveTexture(unitnum);
+ if (unitnum < backendunits)
+ {
+ if (unit->t1d)
{
- if (m->tex1d[i])
- {
- if (unit->t1d == 0)
- qglEnable(GL_TEXTURE_1D);CHECKGLERROR
- }
- else
- {
- if (unit->t1d)
- qglDisable(GL_TEXTURE_1D);CHECKGLERROR
- }
- qglBindTexture(GL_TEXTURE_1D, (unit->t1d = m->tex1d[i]));CHECKGLERROR
+ qglDisable(GL_TEXTURE_1D);CHECKGLERROR
}
- if (unit->t2d != m->tex[i])
+ }
+ unit->t1d = 0;
+ qglBindTexture(GL_TEXTURE_1D, unit->t1d);CHECKGLERROR
+ }
+ // update 2d texture binding
+ if (unit->t2d)
+ {
+ GL_ActiveTexture(unitnum);
+ if (unitnum < backendunits)
+ {
+ if (unit->t2d)
{
- if (m->tex[i])
- {
- if (unit->t2d == 0)
- qglEnable(GL_TEXTURE_2D);CHECKGLERROR
- }
- else
- {
- if (unit->t2d)
- qglDisable(GL_TEXTURE_2D);CHECKGLERROR
- }
- qglBindTexture(GL_TEXTURE_2D, (unit->t2d = m->tex[i]));CHECKGLERROR
+ qglDisable(GL_TEXTURE_2D);CHECKGLERROR
}
- if (unit->t3d != m->tex3d[i])
+ }
+ unit->t2d = 0;
+ qglBindTexture(GL_TEXTURE_2D, unit->t2d);CHECKGLERROR
+ }
+ // update 3d texture binding
+ if (unit->t3d != texnum)
+ {
+ GL_ActiveTexture(unitnum);
+ if (unitnum < backendunits)
+ {
+ if (texnum)
{
- if (m->tex3d[i])
- {
- if (unit->t3d == 0)
- qglEnable(GL_TEXTURE_3D);CHECKGLERROR
- }
- else
+ if (unit->t3d == 0)
{
- if (unit->t3d)
- qglDisable(GL_TEXTURE_3D);CHECKGLERROR
+ qglEnable(GL_TEXTURE_3D);CHECKGLERROR
}
- qglBindTexture(GL_TEXTURE_3D, (unit->t3d = m->tex3d[i]));CHECKGLERROR
}
- if (unit->tcubemap != m->texcubemap[i])
+ else
{
- if (m->texcubemap[i])
+ if (unit->t3d)
{
- if (unit->tcubemap == 0)
- qglEnable(GL_TEXTURE_CUBE_MAP_ARB);CHECKGLERROR
+ qglDisable(GL_TEXTURE_3D);CHECKGLERROR
}
- else
- {
- if (unit->tcubemap)
- qglDisable(GL_TEXTURE_CUBE_MAP_ARB);CHECKGLERROR
- }
- qglBindTexture(GL_TEXTURE_CUBE_MAP_ARB, (unit->tcubemap = m->texcubemap[i]));CHECKGLERROR
}
}
- scale = max(m->texrgbscale[i], 1);
- if (gl_state.units[i].rgbscale != scale)
+ unit->t3d = texnum;
+ qglBindTexture(GL_TEXTURE_3D, unit->t3d);CHECKGLERROR
+ }
+ // update cubemap texture binding
+ if (unit->tcubemap != 0)
+ {
+ GL_ActiveTexture(unitnum);
+ if (unitnum < backendunits)
+ {
+ if (unit->tcubemap)
+ {
+ qglDisable(GL_TEXTURE_CUBE_MAP_ARB);CHECKGLERROR
+ }
+ }
+ unit->tcubemap = 0;
+ qglBindTexture(GL_TEXTURE_CUBE_MAP_ARB, unit->tcubemap);CHECKGLERROR
+ }
+}
+
+void R_Mesh_TexBindCubeMap(unsigned int unitnum, int texnum)
+{
+ gltextureunit_t *unit = gl_state.units + unitnum;
+ if (unitnum >= backendimageunits)
+ return;
+ // update 1d texture binding
+ if (unit->t1d)
+ {
+ GL_ActiveTexture(unitnum);
+ if (unitnum < backendunits)
+ {
+ if (unit->t1d)
+ {
+ qglDisable(GL_TEXTURE_1D);CHECKGLERROR
+ }
+ }
+ unit->t1d = 0;
+ qglBindTexture(GL_TEXTURE_1D, unit->t1d);CHECKGLERROR
+ }
+ // update 2d texture binding
+ if (unit->t2d)
+ {
+ GL_ActiveTexture(unitnum);
+ if (unitnum < backendunits)
+ {
+ if (unit->t2d)
+ {
+ qglDisable(GL_TEXTURE_2D);CHECKGLERROR
+ }
+ }
+ unit->t2d = 0;
+ qglBindTexture(GL_TEXTURE_2D, unit->t2d);CHECKGLERROR
+ }
+ // update 3d texture binding
+ if (unit->t3d)
+ {
+ GL_ActiveTexture(unitnum);
+ if (unitnum < backendunits)
{
- if (gl_state.unit != i)
+ if (unit->t3d)
{
- qglActiveTexture(GL_TEXTURE0_ARB + (gl_state.unit = i));CHECKGLERROR
+ qglDisable(GL_TEXTURE_3D);CHECKGLERROR
}
- qglTexEnvi(GL_TEXTURE_ENV, GL_RGB_SCALE_ARB, (gl_state.units[i].rgbscale = scale));CHECKGLERROR
}
- scale = max(m->texalphascale[i], 1);
- if (gl_state.units[i].alphascale != scale)
+ unit->t3d = 0;
+ qglBindTexture(GL_TEXTURE_3D, unit->t3d);CHECKGLERROR
+ }
+ // update cubemap texture binding
+ if (unit->tcubemap != texnum)
+ {
+ GL_ActiveTexture(unitnum);
+ if (unitnum < backendunits)
{
- if (gl_state.unit != i)
+ if (texnum)
{
- qglActiveTexture(GL_TEXTURE0_ARB + (gl_state.unit = i));CHECKGLERROR
+ if (unit->tcubemap == 0)
+ {
+ qglEnable(GL_TEXTURE_CUBE_MAP_ARB);CHECKGLERROR
+ }
+ }
+ else
+ {
+ if (unit->tcubemap)
+ {
+ qglDisable(GL_TEXTURE_CUBE_MAP_ARB);CHECKGLERROR
+ }
}
- qglTexEnvi(GL_TEXTURE_ENV, GL_ALPHA_SCALE, (gl_state.units[i].alphascale = scale));CHECKGLERROR
}
+ unit->tcubemap = texnum;
+ qglBindTexture(GL_TEXTURE_CUBE_MAP_ARB, unit->tcubemap);CHECKGLERROR
}
}
-void R_Mesh_State(const rmeshstate_t *m)
+void R_Mesh_TexMatrix(unsigned int unitnum, const matrix4x4_t *matrix)
{
- R_Mesh_MainState(m);
- R_Mesh_TextureState(m);
+ gltextureunit_t *unit = gl_state.units + unitnum;
+ if (matrix->m[3][3])
+ {
+ // texmatrix specified, check if it is different
+ if (!unit->texmatrixenabled || memcmp(&unit->matrix, matrix, sizeof(matrix4x4_t)))
+ {
+ double glmatrix[16];
+ unit->texmatrixenabled = true;
+ unit->matrix = *matrix;
+ CHECKGLERROR
+ Matrix4x4_ToArrayDoubleGL(&unit->matrix, glmatrix);
+ qglMatrixMode(GL_TEXTURE);CHECKGLERROR
+ GL_ActiveTexture(unitnum);
+ qglLoadMatrixd(glmatrix);CHECKGLERROR
+ qglMatrixMode(GL_MODELVIEW);CHECKGLERROR
+ }
+ }
+ else
+ {
+ // no texmatrix specified, revert to identity
+ if (unit->texmatrixenabled)
+ {
+ unit->texmatrixenabled = false;
+ CHECKGLERROR
+ qglMatrixMode(GL_TEXTURE);CHECKGLERROR
+ GL_ActiveTexture(unitnum);
+ qglLoadIdentity();CHECKGLERROR
+ qglMatrixMode(GL_MODELVIEW);CHECKGLERROR
+ }
+ }
}
-/*
-==============================================================================
-
- SCREEN SHOTS
-
-==============================================================================
-*/
+void R_Mesh_TexCombine(unsigned int unitnum, int combinergb, int combinealpha, int rgbscale, int alphascale)
+{
+ gltextureunit_t *unit = gl_state.units + unitnum;
+ CHECKGLERROR
+ if (gl_combine.integer)
+ {
+ // GL_ARB_texture_env_combine
+ if (!combinergb)
+ combinergb = GL_MODULATE;
+ if (!combinealpha)
+ combinealpha = GL_MODULATE;
+ if (!rgbscale)
+ rgbscale = 1;
+ if (!alphascale)
+ alphascale = 1;
+ if (unit->combinergb != combinergb)
+ {
+ unit->combinergb = combinergb;
+ GL_ActiveTexture(unitnum);
+ qglTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB, unit->combinergb);CHECKGLERROR
+ }
+ if (unit->combinealpha != combinealpha)
+ {
+ unit->combinealpha = combinealpha;
+ GL_ActiveTexture(unitnum);
+ qglTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA_ARB, unit->combinealpha);CHECKGLERROR
+ }
+ if (unit->rgbscale != rgbscale)
+ {
+ GL_ActiveTexture(unitnum);
+ qglTexEnvi(GL_TEXTURE_ENV, GL_RGB_SCALE_ARB, (unit->rgbscale = rgbscale));CHECKGLERROR
+ }
+ if (unit->alphascale != alphascale)
+ {
+ GL_ActiveTexture(unitnum);
+ qglTexEnvi(GL_TEXTURE_ENV, GL_ALPHA_SCALE, (unit->alphascale = alphascale));CHECKGLERROR
+ }
+ }
+ else
+ {
+ // normal GL texenv
+ if (!combinergb)
+ combinergb = GL_MODULATE;
+ if (unit->combinergb != combinergb)
+ {
+ unit->combinergb = combinergb;
+ GL_ActiveTexture(unitnum);
+ qglTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, unit->combinergb);CHECKGLERROR
+ }
+ }
+}
-qboolean SCR_ScreenShot(char *filename, int x, int y, int width, int height)
+void R_Mesh_TextureState(const rmeshstate_t *m)
{
- qboolean ret;
- int i;
- qbyte *buffer;
+ unsigned int i;
- if (!r_render.integer)
- return false;
+ BACKENDACTIVECHECK
- buffer = Mem_Alloc(tempmempool, width*height*3);
- qglReadPixels (x, y, width, height, GL_RGB, GL_UNSIGNED_BYTE, buffer);
CHECKGLERROR
+ if (gl_backend_rebindtextures)
+ {
+ gl_backend_rebindtextures = false;
+ GL_SetupTextureState();
+ CHECKGLERROR
+ }
- // LordHavoc: compensate for v_overbrightbits when using hardware gamma
- if (v_hwgamma.integer)
- for (i = 0;i < width * height * 3;i++)
- buffer[i] <<= v_overbrightbits.integer;
+ for (i = 0;i < backendimageunits;i++)
+ R_Mesh_TexBindAll(i, m->tex1d[i], m->tex[i], m->tex3d[i], m->texcubemap[i]);
+ for (i = 0;i < backendarrayunits;i++)
+ {
+ if (m->pointer_texcoord3f[i])
+ R_Mesh_TexCoordPointer(i, 3, m->pointer_texcoord3f[i], m->pointer_texcoord_bufferobject[i], m->pointer_texcoord_bufferoffset[i]);
+ else
+ R_Mesh_TexCoordPointer(i, 2, m->pointer_texcoord[i], m->pointer_texcoord_bufferobject[i], m->pointer_texcoord_bufferoffset[i]);
+ }
+ for (i = 0;i < backendunits;i++)
+ {
+ R_Mesh_TexMatrix(i, &m->texmatrix[i]);
+ R_Mesh_TexCombine(i, m->texcombinergb[i], m->texcombinealpha[i], m->texrgbscale[i], m->texalphascale[i]);
+ }
+ CHECKGLERROR
+}
- ret = Image_WriteTGARGB_preflipped(filename, width, height, buffer);
+void R_Mesh_ResetTextureState(void)
+{
+ unsigned int unitnum;
- Mem_Free(buffer);
- return ret;
-}
+ BACKENDACTIVECHECK
-//=============================================================================
+ CHECKGLERROR
+ if (gl_backend_rebindtextures)
+ {
+ gl_backend_rebindtextures = false;
+ GL_SetupTextureState();
+ CHECKGLERROR
+ }
-void R_ClearScreen(void)
-{
- if (r_render.integer)
+ for (unitnum = 0;unitnum < backendimageunits;unitnum++)
+ {
+ gltextureunit_t *unit = gl_state.units + unitnum;
+ // update 1d texture binding
+ if (unit->t1d)
+ {
+ GL_ActiveTexture(unitnum);
+ if (unitnum < backendunits)
+ {
+ qglDisable(GL_TEXTURE_1D);CHECKGLERROR
+ }
+ unit->t1d = 0;
+ qglBindTexture(GL_TEXTURE_1D, unit->t1d);CHECKGLERROR
+ }
+ // update 2d texture binding
+ if (unit->t2d)
+ {
+ GL_ActiveTexture(unitnum);
+ if (unitnum < backendunits)
+ {
+ qglDisable(GL_TEXTURE_2D);CHECKGLERROR
+ }
+ unit->t2d = 0;
+ qglBindTexture(GL_TEXTURE_2D, unit->t2d);CHECKGLERROR
+ }
+ // update 3d texture binding
+ if (unit->t3d)
+ {
+ GL_ActiveTexture(unitnum);
+ if (unitnum < backendunits)
+ {
+ qglDisable(GL_TEXTURE_3D);CHECKGLERROR
+ }
+ unit->t3d = 0;
+ qglBindTexture(GL_TEXTURE_3D, unit->t3d);CHECKGLERROR
+ }
+ // update cubemap texture binding
+ if (unit->tcubemap)
+ {
+ GL_ActiveTexture(unitnum);
+ if (unitnum < backendunits)
+ {
+ qglDisable(GL_TEXTURE_CUBE_MAP_ARB);CHECKGLERROR
+ }
+ unit->tcubemap = 0;
+ qglBindTexture(GL_TEXTURE_CUBE_MAP_ARB, unit->tcubemap);CHECKGLERROR
+ }
+ }
+ for (unitnum = 0;unitnum < backendarrayunits;unitnum++)
+ {
+ gltextureunit_t *unit = gl_state.units + unitnum;
+ // texture array unit is disabled, disable the array
+ if (unit->arrayenabled)
+ {
+ unit->arrayenabled = false;
+ GL_ClientActiveTexture(unitnum);
+ qglDisableClientState(GL_TEXTURE_COORD_ARRAY);CHECKGLERROR
+ }
+ }
+ for (unitnum = 0;unitnum < backendunits;unitnum++)
{
- // clear to black
- qglClearColor(0,0,0,0);CHECKGLERROR
- qglClearDepth(1);CHECKGLERROR
- if (gl_stencil)
+ gltextureunit_t *unit = gl_state.units + unitnum;
+ // no texmatrix specified, revert to identity
+ if (unit->texmatrixenabled)
{
- // LordHavoc: we use a stencil centered around 128 instead of 0,
- // to avoid clamping interfering with strange shadow volume
- // drawing orders
- qglClearStencil(128);CHECKGLERROR
+ unit->texmatrixenabled = false;
+ CHECKGLERROR
+ qglMatrixMode(GL_TEXTURE);CHECKGLERROR
+ GL_ActiveTexture(unitnum);
+ qglLoadIdentity();CHECKGLERROR
+ qglMatrixMode(GL_MODELVIEW);CHECKGLERROR
}
- // clear the screen
- qglClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | (gl_stencil ? GL_STENCIL_BUFFER_BIT : 0));CHECKGLERROR
- // set dithering mode
- if (gl_dither.integer)
+ if (gl_combine.integer)
{
- qglEnable(GL_DITHER);CHECKGLERROR
+ // GL_ARB_texture_env_combine
+ if (unit->combinergb != GL_MODULATE)
+ {
+ unit->combinergb = GL_MODULATE;
+ GL_ActiveTexture(unitnum);
+ qglTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB, unit->combinergb);CHECKGLERROR
+ }
+ if (unit->combinealpha != GL_MODULATE)
+ {
+ unit->combinealpha = GL_MODULATE;
+ GL_ActiveTexture(unitnum);
+ qglTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA_ARB, unit->combinealpha);CHECKGLERROR
+ }
+ if (unit->rgbscale != 1)
+ {
+ GL_ActiveTexture(unitnum);
+ qglTexEnvi(GL_TEXTURE_ENV, GL_RGB_SCALE_ARB, (unit->rgbscale = 1));CHECKGLERROR
+ }
+ if (unit->alphascale != 1)
+ {
+ GL_ActiveTexture(unitnum);
+ qglTexEnvi(GL_TEXTURE_ENV, GL_ALPHA_SCALE, (unit->alphascale = 1));CHECKGLERROR
+ }
}
else
{
- qglDisable(GL_DITHER);CHECKGLERROR
+ // normal GL texenv
+ if (unit->combinergb != GL_MODULATE)
+ {
+ unit->combinergb = GL_MODULATE;
+ GL_ActiveTexture(unitnum);
+ qglTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, unit->combinergb);CHECKGLERROR
+ }
}
}
}
-/*
-==================
-SCR_UpdateScreen
-
-This is called every frame, and can also be called explicitly to flush
-text to the screen.
-==================
-*/
-void SCR_UpdateScreen (void)
+void R_Mesh_Draw_ShowTris(int firstvertex, int numvertices, int numtriangles, const int *elements)
{
- VID_Finish ();
-
- R_TimeReport("finish");
-
- if (r_textureunits.integer > gl_textureunits)
- Cvar_SetValueQuick(&r_textureunits, gl_textureunits);
- if (r_textureunits.integer < 1)
- Cvar_SetValueQuick(&r_textureunits, 1);
-
- if (gl_combine.integer && (!gl_combine_extension || r_textureunits.integer < 2))
- Cvar_SetValueQuick(&gl_combine, 0);
-
- // lighting scale
- r_colorscale = 1.0f / (float) (1 << v_overbrightbits.integer);
-
- // lightmaps only
- r_lightmapscalebit = v_overbrightbits.integer;
- if (gl_combine.integer && r_textureunits.integer > 1)
- r_lightmapscalebit += 2;
-
- R_TimeReport("setup");
-
- R_ClearScreen();
-
- R_TimeReport("clear");
-
- if (scr_conlines < vid.conheight && cls.signon == SIGNONS)
- R_RenderView();
-
- // draw 2D stuff
- R_DrawQueue();
-
- // tell driver to commit it's partially full geometry queue to the rendering queue
- // (this doesn't wait for the commands themselves to complete)
- qglFlush();
+ CHECKGLERROR
+ qglBegin(GL_LINES);
+ for (;numtriangles;numtriangles--, elements += 3)
+ {
+ qglArrayElement(elements[0]);qglArrayElement(elements[1]);
+ qglArrayElement(elements[1]);qglArrayElement(elements[2]);
+ qglArrayElement(elements[2]);qglArrayElement(elements[0]);
+ }
+ qglEnd();
+ CHECKGLERROR
}
-
projects / xonotic / darkplaces.git / blobdiff