#include "quakedef.h"
+#include "cl_collision.h"
-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_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"};
-int lightscalebit;
-float lightscale;
-float overbrightscale;
+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", "1", "enables use of glLockArraysEXT, may cause glitches with some broken drivers"};
+
+int gl_maxdrawrangeelementsvertices;
+int gl_maxdrawrangeelementsindices;
+
+#ifdef DEBUGGL
+int errornumber = 0;
+
+void GL_PrintError(int errornumber, char *filename, int linenumber)
+{
+ switch(errornumber)
+ {
+#ifdef GL_INVALID_ENUM
+ case GL_INVALID_ENUM:
+ Con_Printf("GL_INVALID_ENUM at %s:%i\n", filename, linenumber);
+ break;
+#endif
+#ifdef GL_INVALID_VALUE
+ case GL_INVALID_VALUE:
+ Con_Printf("GL_INVALID_VALUE at %s:%i\n", filename, linenumber);
+ break;
+#endif
+#ifdef GL_INVALID_OPERATION
+ case GL_INVALID_OPERATION:
+ Con_Printf("GL_INVALID_OPERATION at %s:%i\n", filename, linenumber);
+ break;
+#endif
+#ifdef GL_STACK_OVERFLOW
+ case GL_STACK_OVERFLOW:
+ Con_Printf("GL_STACK_OVERFLOW at %s:%i\n", filename, linenumber);
+ break;
+#endif
+#ifdef GL_STACK_UNDERFLOW
+ case GL_STACK_UNDERFLOW:
+ Con_Printf("GL_STACK_UNDERFLOW at %s:%i\n", filename, linenumber);
+ break;
+#endif
+#ifdef GL_OUT_OF_MEMORY
+ case GL_OUT_OF_MEMORY:
+ Con_Printf("GL_OUT_OF_MEMORY at %s:%i\n", filename, linenumber);
+ break;
+#endif
+#ifdef GL_TABLE_TOO_LARGE
+ case GL_TABLE_TOO_LARGE:
+ Con_Printf("GL_TABLE_TOO_LARGE at %s:%i\n", filename, linenumber);
+ break;
+#endif
+ default:
+ Con_Printf("GL UNKNOWN (%i) at %s:%i\n", errornumber, filename, linenumber);
+ break;
+ }
+}
+#endif
+
+#define BACKENDACTIVECHECK if (!backendactive) Sys_Error("GL backend function called when backend is not active");
void SCR_ScreenShot_f (void);
-static void R_Envmap_f (void);
-static int max_meshs;
-static int max_batch;
-static int max_verts; // always max_meshs * 3
-#define TRANSDEPTHRES 4096
+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;
-//#define FLOATCOLORS
+static unsigned int backendunits, backendimageunits, backendarrayunits, backendactive;
-//static cvar_t gl_mesh_maxtriangles = {0, "gl_mesh_maxtriangles", "21760"};
-static cvar_t gl_mesh_maxtriangles = {0, "gl_mesh_maxtriangles", "8192"};
-static cvar_t gl_mesh_batchtriangles = {0, "gl_mesh_batchtriangles", "1024"};
-static cvar_t gl_mesh_merge = {0, "gl_mesh_merge", "1"};
-#if FLOATCOLORS
-static cvar_t gl_mesh_floatcolors = {0, "gl_mesh_floatcolors", "1"};
-#endif
-static cvar_t gl_mesh_dupetransverts = {0, "gl_mesh_dupetransverts", "0"};
-static cvar_t gl_mesh_sorttransbymesh = {0, "gl_mesh_sorttransbymesh", "1"};
+/*
+note: here's strip order for a terrain row:
+0--1--2--3--4
+|\ |\ |\ |\ |
+| \| \| \| \|
+A--B--C--D--E
+clockwise
-typedef struct buf_mesh_s
+A0B, 01B, B1C, 12C, C2D, 23D, D3E, 34E
+
+*elements++ = i + row;
+*elements++ = i;
+*elements++ = i + row + 1;
+*elements++ = i;
+*elements++ = i + 1;
+*elements++ = i + row + 1;
+
+
+for (y = 0;y < rows - 1;y++)
{
- //struct buf_mesh_s *next;
- int depthmask;
- int depthtest;
- int blendfunc1, blendfunc2;
- int textures[MAX_TEXTUREUNITS];
- float texturergbscale[MAX_TEXTUREUNITS];
- int firsttriangle;
- int triangles;
- int firstvert;
- int lastvert;
- struct buf_mesh_s *chain;
- struct buf_transtri_s *transchain;
- //struct buf_transtri_s **transchainpointer;
+ 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;
+ }
}
-buf_mesh_t;
-typedef struct buf_transtri_s
+alternative:
+0--1--2--3--4
+| /| /|\ | /|
+|/ |/ | \|/ |
+A--B--C--D--E
+counterclockwise
+
+for (y = 0;y < rows - 1;y++)
{
- struct buf_transtri_s *next;
- struct buf_transtri_s *meshsortchain;
- buf_mesh_t *mesh;
- int index[3];
+ for (x = 0;x < columns - 1;x++)
+ {
+ i = y * rows + x;
+ *elements++ = i;
+ *elements++ = i + columns;
+ *elements++ = i + columns + 1;
+ *elements++ = i + columns;
+ *elements++ = i + columns + 1;
+ *elements++ = i + 1;
+ }
}
-buf_transtri_t;
+*/
-typedef struct buf_tri_s
+int polygonelements[(POLYGONELEMENTS_MAXPOINTS-2)*3];
+int quadelements[QUADELEMENTS_MAXQUADS*6];
+
+void GL_Backend_AllocArrays(void)
{
- int index[3];
}
-buf_tri_t;
-typedef struct
+void GL_Backend_FreeArrays(void)
{
- float v[4];
}
-buf_vertex_t;
-#if FLOATCOLORS
-typedef struct
+static void gl_backend_start(void)
{
- float c[4];
+ 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);
+ }
+
+ backendunits = min(MAX_TEXTUREUNITS, gl_textureunits);
+ backendimageunits = backendunits;
+ backendarrayunits = backendunits;
+ if (gl_support_fragment_shader)
+ {
+ 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);
+ }
+ else if (backendunits > 1)
+ Con_Printf("multitexture detected: texture units = %i\n", backendunits);
+ else
+ Con_Printf("singletexture\n");
+
+ GL_Backend_AllocArrays();
+
+ Con_Printf("OpenGL backend started.\n");
+
+ CHECKGLERROR
+
+ backendactive = true;
}
-buf_fcolor_t;
-#endif
-typedef struct
+static void gl_backend_shutdown(void)
{
- byte c[4];
+ backendunits = 0;
+ backendimageunits = 0;
+ backendarrayunits = 0;
+ backendactive = false;
+
+ Con_Print("OpenGL Backend shutting down\n");
+
+ GL_Backend_FreeArrays();
}
-buf_bcolor_t;
-typedef struct
+static void gl_backend_newmap(void)
{
- float t[2];
}
-buf_texcoord_t;
-static float meshfarclip;
-static int currentmesh, currenttriangle, currentvertex, backendunits, backendactive, meshmerge, transranout;
-#if FLOATCOLORS
-static int floatcolors;
-#endif
-static buf_mesh_t *buf_mesh;
-static buf_tri_t *buf_tri;
-static buf_vertex_t *buf_vertex;
-#if FLOATCOLORS
-static buf_fcolor_t *buf_fcolor;
-#endif
-static buf_bcolor_t *buf_bcolor;
-static buf_texcoord_t *buf_texcoord[MAX_TEXTUREUNITS];
-
-static int currenttransmesh, currenttransvertex, currenttranstriangle;
-static buf_mesh_t *buf_transmesh;
-static buf_transtri_t *buf_transtri;
-static buf_transtri_t **buf_transtri_list;
-static buf_vertex_t *buf_transvertex;
-#if FLOATCOLORS
-static buf_fcolor_t *buf_transfcolor;
+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(&gl_dither);
+ Cvar_RegisterVariable(&gl_lockarrays);
+ Cvar_RegisterVariable(&gl_paranoid);
+ Cvar_RegisterVariable(&gl_printcheckerror);
+#ifdef NORENDER
+ Cvar_SetValue("r_render", 0);
#endif
-static buf_bcolor_t *buf_transbcolor;
-static buf_texcoord_t *buf_transtexcoord[MAX_TEXTUREUNITS];
-static mempool_t *gl_backend_mempool;
-static int resizingbuffers = false;
+ Cvar_RegisterVariable(&gl_mesh_drawrangeelements);
+ Cvar_RegisterVariable(&gl_mesh_testarrayelement);
+ Cvar_RegisterVariable(&gl_mesh_testmanualfeeding);
-static void gl_backend_start(void)
+ R_RegisterModule("GL_Backend", gl_backend_start, gl_backend_shutdown, gl_backend_newmap);
+}
+
+void GL_SetupView_Orientation_Identity (void)
{
- int i;
+ backend_viewmatrix = identitymatrix;
+ memset(&backend_modelmatrix, 0, sizeof(backend_modelmatrix));
+}
+
+void GL_SetupView_Orientation_FromEntity(matrix4x4_t *matrix)
+{
+ matrix4x4_t tempmatrix, basematrix;
+ Matrix4x4_Invert_Simple(&tempmatrix, matrix);
+ Matrix4x4_CreateRotate(&basematrix, -90, 1, 0, 0);
+ Matrix4x4_ConcatRotate(&basematrix, 90, 0, 0, 1);
+ Matrix4x4_Concat(&backend_viewmatrix, &basematrix, &tempmatrix);
+ //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));
+}
- max_verts = max_meshs * 3;
+void GL_SetupView_Mode_Perspective (double frustumx, double frustumy, double zNear, double zFar)
+{
+ double m[16];
- if (!gl_backend_mempool)
- gl_backend_mempool = Mem_AllocPool("GL_Backend");
+ // set up viewpoint
+ CHECKGLERROR
+ qglMatrixMode(GL_PROJECTION);CHECKGLERROR
+ qglLoadIdentity();CHECKGLERROR
+ // set view pyramid
+ qglFrustum(-frustumx * zNear, frustumx * zNear, -frustumy * zNear, frustumy * zNear, zNear, zFar);CHECKGLERROR
+ qglGetDoublev(GL_PROJECTION_MATRIX, m);CHECKGLERROR
+ 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];
+ qglMatrixMode(GL_MODELVIEW);CHECKGLERROR
+ GL_SetupView_Orientation_Identity();
+ CHECKGLERROR
+}
-#define BACKENDALLOC(var, count, sizeofstruct)\
- {\
- var = Mem_Alloc(gl_backend_mempool, count * sizeof(sizeofstruct));\
- if (var == NULL)\
- Sys_Error("gl_backend_start: unable to allocate memory\n");\
- memset(var, 0, count * sizeof(sizeofstruct));\
- }
+void GL_SetupView_Mode_PerspectiveInfiniteFarClip (double frustumx, double frustumy, double zNear)
+{
+ double nudge, m[16];
- BACKENDALLOC(buf_mesh, max_meshs, buf_mesh_t)
- BACKENDALLOC(buf_tri, max_meshs, buf_tri_t)
- BACKENDALLOC(buf_vertex, max_verts, buf_vertex_t)
-#if FLOATCOLORS
- BACKENDALLOC(buf_fcolor, max_verts, buf_fcolor_t)
-#endif
- BACKENDALLOC(buf_bcolor, max_verts, buf_bcolor_t)
-
- BACKENDALLOC(buf_transmesh, max_meshs, buf_mesh_t)
- BACKENDALLOC(buf_transtri, max_meshs, buf_transtri_t)
- BACKENDALLOC(buf_transtri_list, TRANSDEPTHRES, buf_transtri_t *)
- BACKENDALLOC(buf_transvertex, max_verts, buf_vertex_t)
-#if FLOATCOLORS
- BACKENDALLOC(buf_transfcolor, max_verts, buf_fcolor_t)
-#endif
- BACKENDALLOC(buf_transbcolor, max_verts, buf_bcolor_t)
+ // set up viewpoint
+ CHECKGLERROR
+ qglMatrixMode(GL_PROJECTION);CHECKGLERROR
+ qglLoadIdentity();CHECKGLERROR
+ // set view pyramid
+ nudge = 1.0 - 1.0 / (1<<23);
+ m[ 0] = 1.0 / frustumx;
+ m[ 1] = 0;
+ m[ 2] = 0;
+ m[ 3] = 0;
+ m[ 4] = 0;
+ m[ 5] = 1.0 / frustumy;
+ m[ 6] = 0;
+ m[ 7] = 0;
+ m[ 8] = 0;
+ m[ 9] = 0;
+ m[10] = -nudge;
+ m[11] = -1;
+ m[12] = 0;
+ m[13] = 0;
+ m[14] = -2 * zNear * nudge;
+ m[15] = 0;
+ qglLoadMatrixd(m);CHECKGLERROR
+ qglMatrixMode(GL_MODELVIEW);CHECKGLERROR
+ GL_SetupView_Orientation_Identity();
+ CHECKGLERROR
+ 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];
+}
+
+void GL_SetupView_Mode_Ortho (double x1, double y1, double x2, double y2, double zNear, double zFar)
+{
+ double m[16];
+
+ // set up viewpoint
+ CHECKGLERROR
+ qglMatrixMode(GL_PROJECTION);CHECKGLERROR
+ qglLoadIdentity();CHECKGLERROR
+ qglOrtho(x1, x2, y2, y1, zNear, zFar);CHECKGLERROR
+ qglGetDoublev(GL_PROJECTION_MATRIX, m);CHECKGLERROR
+ 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];
+ qglMatrixMode(GL_MODELVIEW);CHECKGLERROR
+ GL_SetupView_Orientation_Identity();
+ CHECKGLERROR
+}
+
+typedef struct gltextureunit_s
+{
+ int t1d, t2d, t3d, tcubemap;
+ int arrayenabled;
+ unsigned int arraycomponents;
+ const void *pointer_texcoord;
+ 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 gl_state_s
+{
+ int blendfunc1;
+ int blendfunc2;
+ int blend;
+ GLboolean depthmask;
+ int colormask; // stored as bottom 4 bits: r g b a (3 2 1 0 order)
+ int depthtest;
+ int alphatest;
+ int scissortest;
+ unsigned int unit;
+ unsigned int clientunit;
+ gltextureunit_t units[MAX_TEXTUREUNITS];
+ float color4f[4];
+ int lockrange_first;
+ int lockrange_count;
+ const void *pointer_vertex;
+ const void *pointer_color;
+}
+gl_state;
+void GL_SetupTextureState(void)
+{
+ unsigned int i;
+ gltextureunit_t *unit;
+ CHECKGLERROR
+ gl_state.unit = MAX_TEXTUREUNITS;
+ gl_state.clientunit = MAX_TEXTUREUNITS;
for (i = 0;i < MAX_TEXTUREUNITS;i++)
{
- // only allocate as many texcoord arrays as we need
- if (i < gl_textureunits)
+ 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->rgbscale = 1;
+ unit->alphascale = 1;
+ unit->combinergb = GL_MODULATE;
+ unit->combinealpha = GL_MODULATE;
+ 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)
+ {
+ qglBindTexture(GL_TEXTURE_3D, 0);CHECKGLERROR
+ }
+ if (gl_texturecubemap)
+ {
+ qglBindTexture(GL_TEXTURE_CUBE_MAP_ARB, 0);CHECKGLERROR
+ }
+ }
+
+ for (i = 0;i < backendarrayunits;i++)
+ {
+ GL_ClientActiveTexture(i);
+ 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_3D);CHECKGLERROR
+ }
+ if (gl_texturecubemap)
{
- BACKENDALLOC(buf_texcoord[i], max_verts, buf_texcoord_t)
- BACKENDALLOC(buf_transtexcoord[i], max_verts, buf_texcoord_t)
+ 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_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_COMBINE_ALPHA_ARB, GL_MODULATE);CHECKGLERROR
+ qglTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_ALPHA_ARB, GL_TEXTURE);CHECKGLERROR
+ qglTexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_ALPHA_ARB, GL_PREVIOUS_ARB);CHECKGLERROR
+ qglTexEnvi(GL_TEXTURE_ENV, GL_SOURCE2_ALPHA_ARB, GL_CONSTANT_ARB);CHECKGLERROR
+ qglTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA_ARB, GL_SRC_ALPHA);CHECKGLERROR
+ qglTexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_ALPHA_ARB, GL_SRC_ALPHA);CHECKGLERROR
+ qglTexEnvi(GL_TEXTURE_ENV, GL_OPERAND2_ALPHA_ARB, GL_SRC_ALPHA);CHECKGLERROR
+ qglTexEnvi(GL_TEXTURE_ENV, GL_RGB_SCALE_ARB, 1);CHECKGLERROR
+ qglTexEnvi(GL_TEXTURE_ENV, GL_ALPHA_SCALE, 1);CHECKGLERROR
}
else
{
- buf_texcoord[i] = NULL;
- buf_transtexcoord[i] = NULL;
+ qglTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);CHECKGLERROR
}
+ CHECKGLERROR
}
- backendunits = min(MAX_TEXTUREUNITS, gl_textureunits);
- backendactive = true;
+ CHECKGLERROR
}
-static void gl_backend_shutdown(void)
+void GL_Backend_ResetState(void)
{
- //int i;
- /*
-#define BACKENDFREE(var)\
- if (var)\
- {\
- Mem_Free(var);\
- var = NULL;\
- }
- */
- /*
-#define BACKENDFREE(var) var = NULL;
-
- BACKENDFREE(buf_mesh)
- BACKENDFREE(buf_tri)
- BACKENDFREE(buf_vertex)
-#if FLOATCOLORS
- BACKENDFREE(buf_fcolor)
-#endif
- BACKENDFREE(buf_bcolor)
-
- BACKENDFREE(buf_transmesh)
- BACKENDFREE(buf_transtri)
- BACKENDFREE(buf_transtri_list)
- BACKENDFREE(buf_transvertex)
-#if FLOATCOLORS
- BACKENDFREE(buf_transfcolor)
-#endif
- BACKENDFREE(buf_transbcolor)
+ memset(&gl_state, 0, sizeof(gl_state));
+ 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.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.pointer_vertex = NULL;
+ gl_state.pointer_color = NULL;
- for (i = 0;i < MAX_TEXTUREUNITS;i++)
- {
- BACKENDFREE(buf_texcoord[i])
- BACKENDFREE(buf_transtexcoord[i])
- }
- */
+ CHECKGLERROR
- if (resizingbuffers)
- Mem_EmptyPool(gl_backend_mempool);
- else
- Mem_FreePool(&gl_backend_mempool);
+ 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_FRONT);CHECKGLERROR
+ qglEnable(GL_CULL_FACE);CHECKGLERROR
+ qglDepthFunc(GL_LEQUAL);CHECKGLERROR
+ qglEnable(GL_DEPTH_TEST);CHECKGLERROR
+ qglDepthMask(gl_state.depthmask);CHECKGLERROR
- backendunits = 0;
- backendactive = false;
-}
+ qglVertexPointer(3, GL_FLOAT, sizeof(float[3]), NULL);CHECKGLERROR
+ qglEnableClientState(GL_VERTEX_ARRAY);CHECKGLERROR
-static void gl_backend_bufferchanges(int init)
-{
- // 21760 is (65536 / 3) rounded off to a multiple of 128
- if (gl_mesh_maxtriangles.integer < 256)
- Cvar_SetValue("gl_mesh_maxtriangles", 256);
- if (gl_mesh_maxtriangles.integer > 21760)
- Cvar_SetValue("gl_mesh_maxtriangles", 21760);
+ qglColorPointer(4, GL_FLOAT, sizeof(float[4]), NULL);CHECKGLERROR
+ qglDisableClientState(GL_COLOR_ARRAY);CHECKGLERROR
- if (gl_mesh_batchtriangles.integer < 0)
- Cvar_SetValue("gl_mesh_batchtriangles", 0);
- if (gl_mesh_batchtriangles.integer > gl_mesh_maxtriangles.integer)
- Cvar_SetValue("gl_mesh_batchtriangles", gl_mesh_maxtriangles.integer);
+ GL_Color(0, 0, 0, 0);
+ GL_Color(1, 1, 1, 1);
- max_batch = gl_mesh_batchtriangles.integer;
+ GL_SetupTextureState();
+}
- if (max_meshs != gl_mesh_maxtriangles.integer)
+void GL_ActiveTexture(unsigned int num)
+{
+ if (gl_state.unit != num)
{
- max_meshs = gl_mesh_maxtriangles.integer;
+ gl_state.unit = num;
+ if (qglActiveTexture)
+ {
+ CHECKGLERROR
+ qglActiveTexture(GL_TEXTURE0_ARB + gl_state.unit);
+ CHECKGLERROR
+ }
+ }
+}
- if (!init)
+void GL_ClientActiveTexture(unsigned int num)
+{
+ if (gl_state.clientunit != num)
+ {
+ gl_state.clientunit = num;
+ if (qglActiveTexture)
{
- resizingbuffers = true;
- gl_backend_shutdown();
- gl_backend_start();
- resizingbuffers = false;
+ CHECKGLERROR
+ qglClientActiveTexture(GL_TEXTURE0_ARB + gl_state.clientunit);
+ CHECKGLERROR
}
}
}
-float r_farclip, r_newfarclip;
+void GL_BlendFunc(int blendfunc1, int blendfunc2)
+{
+ 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
+ }
+ }
+ }
+}
-static void gl_backend_newmap(void)
+void GL_DepthMask(int state)
{
- r_farclip = r_newfarclip = 2048.0f;
+ if (gl_state.depthmask != state)
+ {
+ CHECKGLERROR
+ qglDepthMask(gl_state.depthmask = state);CHECKGLERROR
+ }
}
-int polyindexarray[768];
+void GL_DepthTest(int state)
+{
+ if (gl_state.depthtest != state)
+ {
+ gl_state.depthtest = state;
+ CHECKGLERROR
+ if (gl_state.depthtest)
+ {
+ qglEnable(GL_DEPTH_TEST);CHECKGLERROR
+ }
+ else
+ {
+ qglDisable(GL_DEPTH_TEST);CHECKGLERROR
+ }
+ }
+}
-void gl_backend_init(void)
+void GL_AlphaTest(int state)
{
- int i;
+ 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
+ }
+ }
+}
- Cvar_RegisterVariable (&r_render);
- Cvar_RegisterVariable (&gl_dither);
-#ifdef NORENDER
- Cvar_SetValue("r_render", 0);
-#endif
+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
+ }
+}
- Cmd_AddCommand ("screenshot",SCR_ScreenShot_f);
- Cmd_AddCommand ("envmap", R_Envmap_f);
+void GL_Color(float cr, float cg, float cb, float ca)
+{
+ if (gl_state.pointer_color || 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
+ }
+}
- Cvar_RegisterVariable(&gl_mesh_maxtriangles);
- Cvar_RegisterVariable(&gl_mesh_batchtriangles);
- Cvar_RegisterVariable(&gl_mesh_merge);
-#if FLOATCOLORS
- Cvar_RegisterVariable(&gl_mesh_floatcolors);
-#endif
- Cvar_RegisterVariable(&gl_mesh_dupetransverts);
- Cvar_RegisterVariable(&gl_mesh_sorttransbymesh);
- R_RegisterModule("GL_Backend", gl_backend_start, gl_backend_shutdown, gl_backend_newmap);
- gl_backend_bufferchanges(true);
- for (i = 0;i < 256;i++)
+void GL_LockArrays(int first, int count)
+{
+ if (gl_state.lockrange_count != count || gl_state.lockrange_first != first)
{
- polyindexarray[i*3+0] = 0;
- polyindexarray[i*3+1] = i + 1;
- polyindexarray[i*3+2] = i + 2;
+ 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
+ }
}
}
-static void MYgluPerspective(GLdouble fovx, GLdouble fovy, GLdouble aspect, GLdouble zNear, GLdouble zFar )
+void GL_Scissor (int x, int y, int width, int height)
{
- GLdouble xmax, ymax;
+ CHECKGLERROR
+ qglScissor(x, vid.height - (y + height),width,height);
+ CHECKGLERROR
+}
- xmax = zNear * tan( fovx * M_PI / 360.0 ) * aspect;
- ymax = zNear * tan( fovy * M_PI / 360.0 );
+void GL_ScissorTest(int state)
+{
+ if(gl_state.scissortest == state)
+ return;
- glFrustum(-xmax, xmax, -ymax, ymax, zNear, zFar );
+ 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
+}
-/*
-=============
-GL_SetupFrame
-=============
-*/
-static void GL_SetupFrame (void)
+void GL_TransformToScreen(const vec4_t in, vec4_t out)
{
- if (!r_render.integer)
- return;
+ 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 + (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;
+}
-// glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // LordHavoc: moved to SCR_UpdateScreen
- gldepthmin = 0;
- gldepthmax = 1;
- glDepthFunc (GL_LEQUAL);
+// 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();
+}
- glDepthRange (gldepthmin, gldepthmax);
+unsigned int GL_Backend_CompileProgram(int vertexstrings_count, const char **vertexstrings_list, int fragmentstrings_count, const char **fragmentstrings_list)
+{
+ GLint vertexshadercompiled, fragmentshadercompiled, programlinked;
+ GLuint vertexshaderobject, fragmentshaderobject, programobject = 0;
+ char compilelog[MAX_INPUTLINE];
+ CHECKGLERROR
- // update farclip based on previous frame
- r_farclip = r_newfarclip;
+ programobject = qglCreateProgramObjectARB();CHECKGLERROR
+ if (!programobject)
+ return 0;
- // set up viewpoint
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity ();
-
- // y is weird beause OpenGL is bottom to top, we use top to bottom
- glViewport(r_refdef.x, vid.realheight - (r_refdef.y + r_refdef.height), r_refdef.width, r_refdef.height);
-// yfov = 2*atan((float)r_refdef.height/r_refdef.width)*180/M_PI;
- MYgluPerspective (r_refdef.fov_x, r_refdef.fov_y, r_refdef.width/r_refdef.height, 4, r_farclip);
-
- glCullFace(GL_FRONT);
-
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity ();
-
- glRotatef (-90, 1, 0, 0); // put Z going up
- glRotatef (90, 0, 0, 1); // put Z going up
- glRotatef (-r_refdef.viewangles[2], 1, 0, 0);
- glRotatef (-r_refdef.viewangles[0], 0, 1, 0);
- glRotatef (-r_refdef.viewangles[1], 0, 0, 1);
- glTranslatef (-r_refdef.vieworg[0], -r_refdef.vieworg[1], -r_refdef.vieworg[2]);
-
-// glGetFloatv (GL_MODELVIEW_MATRIX, r_world_matrix);
-
- //
- // set drawing parms
- //
-// if (gl_cull.integer)
- glEnable(GL_CULL_FACE);
-// else
-// glDisable(GL_CULL_FACE);
-
- glEnable(GL_BLEND); // was Disable
- glEnable(GL_DEPTH_TEST);
- glDepthMask(1);
-}
+ if (developer.integer >= 100)
+ {
+ int i;
+ Con_Printf("Compiling shader:\n");
+ if (vertexstrings_count)
+ {
+ Con_Printf("------ VERTEX SHADER ------\n");
+ for (i = 0;i < vertexstrings_count;i++)
+ Con_Print(vertexstrings_list[i]);
+ Con_Print("\n");
+ }
+ if (fragmentstrings_count)
+ {
+ Con_Printf("------ FRAGMENT SHADER ------\n");
+ for (i = 0;i < fragmentstrings_count;i++)
+ Con_Print(fragmentstrings_list[i]);
+ Con_Print("\n");
+ }
+ }
-static float viewdist;
+ if (vertexstrings_count)
+ {
+ vertexshaderobject = qglCreateShaderObjectARB(GL_VERTEX_SHADER_ARB);CHECKGLERROR
+ if (!vertexshaderobject)
+ {
+ qglDeleteObjectARB(programobject);
+ CHECKGLERROR
+ return 0;
+ }
+ qglShaderSourceARB(vertexshaderobject, vertexstrings_count, vertexstrings_list, NULL);CHECKGLERROR
+ qglCompileShaderARB(vertexshaderobject);CHECKGLERROR
+ qglGetObjectParameterivARB(vertexshaderobject, GL_OBJECT_COMPILE_STATUS_ARB, &vertexshadercompiled);CHECKGLERROR
+ qglGetInfoLogARB(vertexshaderobject, sizeof(compilelog), NULL, compilelog);CHECKGLERROR
+ if (compilelog[0])
+ Con_DPrintf("vertex shader compile log:\n%s\n", compilelog);
+ if (!vertexshadercompiled)
+ {
+ qglDeleteObjectARB(programobject);CHECKGLERROR
+ qglDeleteObjectARB(vertexshaderobject);CHECKGLERROR
+ return 0;
+ }
+ qglAttachObjectARB(programobject, vertexshaderobject);CHECKGLERROR
+ qglDeleteObjectARB(vertexshaderobject);CHECKGLERROR
+ }
-int c_meshs, c_meshtris, c_transmeshs, c_transtris;
+ if (fragmentstrings_count)
+ {
+ fragmentshaderobject = qglCreateShaderObjectARB(GL_FRAGMENT_SHADER_ARB);CHECKGLERROR
+ if (!fragmentshaderobject)
+ {
+ qglDeleteObjectARB(programobject);CHECKGLERROR
+ return 0;
+ }
+ qglShaderSourceARB(fragmentshaderobject, fragmentstrings_count, fragmentstrings_list, NULL);CHECKGLERROR
+ qglCompileShaderARB(fragmentshaderobject);CHECKGLERROR
+ qglGetObjectParameterivARB(fragmentshaderobject, GL_OBJECT_COMPILE_STATUS_ARB, &fragmentshadercompiled);CHECKGLERROR
+ qglGetInfoLogARB(fragmentshaderobject, sizeof(compilelog), NULL, compilelog);CHECKGLERROR
+ if (compilelog[0])
+ Con_DPrintf("fragment shader compile log:\n%s\n", compilelog);
+ if (!fragmentshadercompiled)
+ {
+ qglDeleteObjectARB(programobject);CHECKGLERROR
+ qglDeleteObjectARB(fragmentshaderobject);CHECKGLERROR
+ return 0;
+ }
+ qglAttachObjectARB(programobject, fragmentshaderobject);CHECKGLERROR
+ qglDeleteObjectARB(fragmentshaderobject);CHECKGLERROR
+ }
-// called at beginning of frame
-void R_Mesh_Clear(void)
+ qglLinkProgramARB(programobject);CHECKGLERROR
+ qglGetObjectParameterivARB(programobject, GL_OBJECT_LINK_STATUS_ARB, &programlinked);CHECKGLERROR
+ qglGetInfoLogARB(programobject, sizeof(compilelog), NULL, compilelog);CHECKGLERROR
+ if (compilelog[0])
+ {
+ Con_DPrintf("program link log:\n%s\n", compilelog);
+ // 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(compilelog, "fragment shader will run in software"))
+ programlinked = false;
+ }
+ if (!programlinked)
+ {
+ qglDeleteObjectARB(programobject);CHECKGLERROR
+ return 0;
+ }
+ CHECKGLERROR
+ return programobject;
+}
+
+void GL_Backend_FreeProgram(unsigned int prog)
{
- if (!backendactive)
- Sys_Error("R_Mesh_Clear: called when backend is not active\n");
-
- gl_backend_bufferchanges(false);
-
- currentmesh = 0;
- currenttriangle = 0;
- currentvertex = 0;
- currenttransmesh = 0;
- currenttranstriangle = 0;
- currenttransvertex = 0;
- meshfarclip = 0;
- meshmerge = gl_mesh_merge.integer;
-#if FLOATCOLORS
- floatcolors = gl_mesh_floatcolors.integer;
-#endif
- transranout = false;
- viewdist = DotProduct(r_origin, vpn);
+ CHECKGLERROR
+ qglDeleteObjectARB(prog);
+ CHECKGLERROR
+}
- c_meshs = 0;
- c_meshtris = 0;
- c_transmeshs = 0;
- c_transtris = 0;
+int gl_backend_rebindtextures;
- GL_SetupFrame();
+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);
}
-#ifdef DEBUGGL
-void GL_PrintError(int errornumber, char *filename, int linenumber)
+// renders triangles using vertices from the active arrays
+int paranoidblah = 0;
+void R_Mesh_Draw(int firstvertex, int numvertices, int numtriangles, const int *elements)
{
- switch(errornumber)
+ unsigned int numelements = numtriangles * 3;
+ if (numvertices < 3 || numtriangles < 1)
{
- case GL_INVALID_ENUM:
- Con_Printf("GL_INVALID_ENUM at %s:%i\n", filename, linenumber);
- break;
- case GL_INVALID_VALUE:
- Con_Printf("GL_INVALID_VALUE at %s:%i\n", filename, linenumber);
- break;
- case GL_INVALID_OPERATION:
- Con_Printf("GL_INVALID_OPERATION at %s:%i\n", filename, linenumber);
- break;
- case GL_STACK_OVERFLOW:
- Con_Printf("GL_STACK_OVERFLOW at %s:%i\n", filename, linenumber);
- break;
- case GL_STACK_UNDERFLOW:
- Con_Printf("GL_STACK_UNDERFLOW at %s:%i\n", filename, linenumber);
- break;
- case GL_OUT_OF_MEMORY:
- Con_Printf("GL_OUT_OF_MEMORY at %s:%i\n", filename, linenumber);
- break;
-#ifdef GL_TABLE_TOO_LARGE
- case GL_TABLE_TOO_LARGE:
- Con_Printf("GL_TABLE_TOO_LARGE at %s:%i\n", filename, linenumber);
- break;
-#endif
- default:
- Con_Printf("GL UNKNOWN (%i) at %s:%i\n", errornumber, filename, linenumber);
- break;
+ Con_Printf("R_Mesh_Draw(%d, %d, %d, %08p);\n", firstvertex, numvertices, numtriangles, elements);
+ return;
+ }
+ CHECKGLERROR
+ r_refdef.stats.meshes++;
+ r_refdef.stats.meshes_elements += numelements;
+ if (gl_paranoid.integer)
+ {
+ unsigned int i, j, size;
+ const int *p;
+ if (!qglIsEnabled(GL_VERTEX_ARRAY))
+ Con_Print("R_Mesh_Draw: vertex array not enabled\n");
+ CHECKGLERROR
+ 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)
+ {
+ if (!qglIsEnabled(GL_COLOR_ARRAY))
+ Con_Print("R_Mesh_Draw: color array set but not enabled\n");
+ CHECKGLERROR
+ 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
+ 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)
+ {
+ 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)
+ {
+ 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)
+ {
+ qglDrawRangeElements(GL_TRIANGLES, firstvertex, firstvertex + numvertices, numelements, GL_UNSIGNED_INT, elements);
+ CHECKGLERROR
+ }
+ else
+ {
+ qglDrawElements(GL_TRIANGLES, numelements, GL_UNSIGNED_INT, elements);
+ CHECKGLERROR
+ }
}
}
-int errornumber = 0;
-#endif
-
-// renders mesh buffers, called to flush buffers when full
-void R_Mesh_Render(void)
+// restores backend state, used when done with 3D rendering
+void R_Mesh_Finish(void)
{
- int i, k, blendfunc1, blendfunc2, blend, depthmask, depthtest, unit = 0, clientunit = 0, firsttriangle, triangles, firstvert, lastvert, texture[MAX_TEXTUREUNITS];
- float farclip, texturergbscale[MAX_TEXTUREUNITS];
- buf_mesh_t *mesh;
- if (!backendactive)
- Sys_Error("R_Mesh_Render: called when backend is not active\n");
- if (!currentmesh)
- return;
+ unsigned int i;
+ BACKENDACTIVECHECK
+ CHECKGLERROR
+ GL_LockArrays(0, 0);
+ CHECKGLERROR
-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
+ qglEnable(GL_DEPTH_TEST);CHECKGLERROR
+ qglDepthMask(GL_TRUE);CHECKGLERROR
+ qglBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);CHECKGLERROR
+}
- // push out farclip based on vertices
- for (i = 0;i < currentvertex;i++)
+void R_Mesh_Matrix(const matrix4x4_t *matrix)
+{
+ if (memcmp(matrix, &backend_modelmatrix, sizeof(matrix4x4_t)))
{
- farclip = DotProduct(buf_vertex[i].v, vpn);
- if (meshfarclip < farclip)
- meshfarclip = farclip;
+ backend_modelmatrix = *matrix;
+ Matrix4x4_Concat(&backend_modelviewmatrix, &backend_viewmatrix, matrix);
+ Matrix4x4_Transpose(&backend_glmodelviewmatrix, &backend_modelviewmatrix);
+ CHECKGLERROR
+ qglLoadMatrixf(&backend_glmodelviewmatrix.m[0][0]);CHECKGLERROR
}
+}
- farclip = meshfarclip + 256.0f - viewdist; // + 256 just to be safe
+void R_Mesh_VertexPointer(const float *vertex3f)
+{
+ if (gl_state.pointer_vertex != vertex3f)
+ {
+ gl_state.pointer_vertex = vertex3f;
+ CHECKGLERROR
+ qglVertexPointer(3, GL_FLOAT, sizeof(float[3]), gl_state.pointer_vertex);
+ CHECKGLERROR
+ }
+}
- // push out farclip for next frame
- if (farclip > r_newfarclip)
- r_newfarclip = ceil((farclip + 255) / 256) * 256 + 256;
+void R_Mesh_ColorPointer(const float *color4f)
+{
+ if (gl_state.pointer_color != color4f)
+ {
+ CHECKGLERROR
+ if (!gl_state.pointer_color)
+ {
+ qglEnableClientState(GL_COLOR_ARRAY);CHECKGLERROR
+ }
+ else if (!color4f)
+ {
+ 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
+ }
+ gl_state.pointer_color = color4f;
+ qglColorPointer(4, GL_FLOAT, sizeof(float[4]), gl_state.pointer_color);CHECKGLERROR
+ }
+}
- for (i = 0;i < backendunits;i++)
- texturergbscale[i] = 1;
-
- glEnable(GL_CULL_FACE);
-CHECKGLERROR
- glCullFace(GL_FRONT);
-CHECKGLERROR
- depthtest = true;
- glEnable(GL_DEPTH_TEST);
-CHECKGLERROR
- blendfunc1 = GL_ONE;
- blendfunc2 = GL_ZERO;
- glBlendFunc(blendfunc1, blendfunc2);
-CHECKGLERROR
- blend = 0;
- glDisable(GL_BLEND);
-CHECKGLERROR
- depthmask = true;
- glDepthMask((GLboolean) depthmask);
-CHECKGLERROR
-
- glVertexPointer(3, GL_FLOAT, sizeof(buf_vertex_t), buf_vertex);
-CHECKGLERROR
- glEnableClientState(GL_VERTEX_ARRAY);
-CHECKGLERROR
-#if FLOATCOLORS
- if (floatcolors)
- {
- glColorPointer(4, GL_FLOAT, sizeof(buf_fcolor_t), buf_fcolor);
-CHECKGLERROR
+void R_Mesh_TexCoordPointer(unsigned int unitnum, unsigned int numcomponents, const float *texcoord)
+{
+ gltextureunit_t *unit = gl_state.units + unitnum;
+ // update array settings
+ CHECKGLERROR
+ if (texcoord)
+ {
+ // texcoord array
+ if (unit->pointer_texcoord != texcoord || unit->arraycomponents != numcomponents)
+ {
+ unit->pointer_texcoord = texcoord;
+ unit->arraycomponents = numcomponents;
+ GL_ClientActiveTexture(unitnum);
+ qglTexCoordPointer(unit->arraycomponents, GL_FLOAT, sizeof(float) * unit->arraycomponents, unit->pointer_texcoord);CHECKGLERROR
+ }
+ // texture array unit is enabled, enable the array
+ if (!unit->arrayenabled)
+ {
+ unit->arrayenabled = true;
+ GL_ClientActiveTexture(unitnum);
+ qglEnableClientState(GL_TEXTURE_COORD_ARRAY);CHECKGLERROR
+ }
}
else
{
-#endif
- glColorPointer(4, GL_UNSIGNED_BYTE, sizeof(buf_bcolor_t), buf_bcolor);
-CHECKGLERROR
-#if FLOATCOLORS
+ // texture array unit is disabled, disable the array
+ if (unit->arrayenabled)
+ {
+ unit->arrayenabled = false;
+ GL_ClientActiveTexture(unitnum);
+ qglDisableClientState(GL_TEXTURE_COORD_ARRAY);CHECKGLERROR
+ }
}
-#endif
- glEnableClientState(GL_COLOR_ARRAY);
-CHECKGLERROR
+}
- if (backendunits > 1)
+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)
{
- for (i = 0;i < backendunits;i++)
+ GL_ActiveTexture(unitnum);
+ if (unitnum < backendunits)
{
- qglActiveTexture(GL_TEXTURE0_ARB + (unit = i));
-CHECKGLERROR
- glBindTexture(GL_TEXTURE_2D, (texture[i] = 0));
-CHECKGLERROR
- glDisable(GL_TEXTURE_2D);
-CHECKGLERROR
- if (gl_combine.integer)
+ if (tex1d)
{
- glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_ARB);
-CHECKGLERROR
- glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB, GL_MODULATE);
-CHECKGLERROR
- glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB_ARB, GL_TEXTURE);
-CHECKGLERROR
- glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_RGB_ARB, GL_PREVIOUS_ARB);
-CHECKGLERROR
- glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE2_RGB_ARB, GL_CONSTANT_ARB);
-CHECKGLERROR
- glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB_ARB, GL_SRC_COLOR);
-CHECKGLERROR
- glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_RGB_ARB, GL_SRC_COLOR);
-CHECKGLERROR
- glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND2_RGB_ARB, GL_SRC_ALPHA);
-CHECKGLERROR
- glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA_ARB, GL_MODULATE);
-CHECKGLERROR
- glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_ALPHA_ARB, GL_TEXTURE);
-CHECKGLERROR
- glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_ALPHA_ARB, GL_PREVIOUS_ARB);
-CHECKGLERROR
- glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE2_ALPHA_ARB, GL_CONSTANT_ARB);
-CHECKGLERROR
- glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA_ARB, GL_SRC_ALPHA);
-CHECKGLERROR
- glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_ALPHA_ARB, GL_SRC_ALPHA);
-CHECKGLERROR
- glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND2_ALPHA_ARB, GL_SRC_ALPHA);
-CHECKGLERROR
- glTexEnvf(GL_TEXTURE_ENV, GL_RGB_SCALE_ARB, 1.0f);
-CHECKGLERROR
- glTexEnvf(GL_TEXTURE_ENV, GL_ALPHA_SCALE, 1.0f);
-CHECKGLERROR
+ if (unit->t1d == 0)
+ {
+ qglEnable(GL_TEXTURE_1D);CHECKGLERROR
+ }
}
else
{
- glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
-CHECKGLERROR
+ if (unit->t1d)
+ {
+ qglDisable(GL_TEXTURE_1D);CHECKGLERROR
+ }
}
-
- qglClientActiveTexture(GL_TEXTURE0_ARB + (clientunit = i));
-CHECKGLERROR
- glTexCoordPointer(2, GL_FLOAT, sizeof(buf_texcoord_t), buf_texcoord[i]);
-CHECKGLERROR
- glEnableClientState(GL_TEXTURE_COORD_ARRAY);
-CHECKGLERROR
}
+ unit->t1d = tex1d;
+ qglBindTexture(GL_TEXTURE_1D, unit->t1d);CHECKGLERROR
}
- else
- {
- glBindTexture(GL_TEXTURE_2D, (texture[0] = 0));
-CHECKGLERROR
- glDisable(GL_TEXTURE_2D);
-CHECKGLERROR
- glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
-CHECKGLERROR
-
- glTexCoordPointer(2, GL_FLOAT, sizeof(buf_texcoord_t), buf_texcoord[0]);
-CHECKGLERROR
- glEnableClientState(GL_TEXTURE_COORD_ARRAY);
-CHECKGLERROR
- }
-
- // lock as early as possible
- GL_LockArray(0, currentvertex);
-CHECKGLERROR
-
- for (k = 0;k < currentmesh;)
+ // update 2d texture binding
+ if (unit->t2d != tex2d)
{
- mesh = &buf_mesh[k];
-
- if (backendunits > 1)
+ GL_ActiveTexture(unitnum);
+ if (unitnum < backendunits)
{
-// int topunit = 0;
- for (i = 0;i < backendunits;i++)
+ if (tex2d)
{
- if (texture[i] != mesh->textures[i])
+ if (unit->t2d == 0)
{
- if (unit != i)
- {
- qglActiveTexture(GL_TEXTURE0_ARB + (unit = i));
-CHECKGLERROR
- }
- if (texture[i] == 0)
- {
- glEnable(GL_TEXTURE_2D);
-CHECKGLERROR
- // have to disable texcoord array on disabled texture
- // units due to NVIDIA driver bug with
- // compiled_vertex_array
- if (clientunit != i)
- {
- qglClientActiveTexture(GL_TEXTURE0_ARB + (clientunit = i));
-CHECKGLERROR
- }
- glEnableClientState(GL_TEXTURE_COORD_ARRAY);
-CHECKGLERROR
- }
- glBindTexture(GL_TEXTURE_2D, (texture[i] = mesh->textures[i]));
-CHECKGLERROR
- if (texture[i] == 0)
- {
- glDisable(GL_TEXTURE_2D);
-CHECKGLERROR
- // have to disable texcoord array on disabled texture
- // units due to NVIDIA driver bug with
- // compiled_vertex_array
- if (clientunit != i)
- {
- qglClientActiveTexture(GL_TEXTURE0_ARB + (clientunit = i));
-CHECKGLERROR
- }
- glDisableClientState(GL_TEXTURE_COORD_ARRAY);
-CHECKGLERROR
- }
+ qglEnable(GL_TEXTURE_2D);CHECKGLERROR
}
- if (texturergbscale[i] != mesh->texturergbscale[i])
+ }
+ else
+ {
+ if (unit->t2d)
{
- if (unit != i)
- {
- qglActiveTexture(GL_TEXTURE0_ARB + (unit = i));
-CHECKGLERROR
- }
- glTexEnvf(GL_TEXTURE_ENV, GL_RGB_SCALE_ARB, (texturergbscale[i] = mesh->texturergbscale[i]));
-CHECKGLERROR
+ qglDisable(GL_TEXTURE_2D);CHECKGLERROR
}
-// if (texture[i])
-// topunit = i;
}
-// if (unit != topunit)
-// {
-// qglActiveTexture(GL_TEXTURE0_ARB + (unit = topunit));
-//CHECKGLERROR
-// }
}
- else
+ 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 (texture[0] != mesh->textures[0])
+ if (tex3d)
{
- if (texture[0] == 0)
+ if (unit->t3d == 0)
{
- glEnable(GL_TEXTURE_2D);
-CHECKGLERROR
- glEnableClientState(GL_TEXTURE_COORD_ARRAY);
-CHECKGLERROR
+ qglEnable(GL_TEXTURE_3D);CHECKGLERROR
}
- glBindTexture(GL_TEXTURE_2D, (texture[0] = mesh->textures[0]));
-CHECKGLERROR
- if (texture[0] == 0)
+ }
+ else
+ {
+ if (unit->t3d)
{
- glDisable(GL_TEXTURE_2D);
-CHECKGLERROR
- glDisableClientState(GL_TEXTURE_COORD_ARRAY);
-CHECKGLERROR
+ qglDisable(GL_TEXTURE_3D);CHECKGLERROR
}
}
}
- if (blendfunc1 != mesh->blendfunc1 || blendfunc2 != mesh->blendfunc2)
+ unit->t3d = tex3d;
+ qglBindTexture(GL_TEXTURE_3D, unit->t3d);CHECKGLERROR
+ }
+ // update cubemap texture binding
+ if (unit->tcubemap != texcubemap)
+ {
+ GL_ActiveTexture(unitnum);
+ if (unitnum < backendunits)
{
- blendfunc1 = mesh->blendfunc1;
- blendfunc2 = mesh->blendfunc2;
- glBlendFunc(blendfunc1, blendfunc2);
-CHECKGLERROR
- if (blendfunc2 == GL_ZERO)
+ if (texcubemap)
{
- if (blendfunc1 == GL_ONE)
+ if (unit->tcubemap == 0)
{
- if (blend)
- {
- blend = 0;
- glDisable(GL_BLEND);
-CHECKGLERROR
- }
+ qglEnable(GL_TEXTURE_CUBE_MAP_ARB);CHECKGLERROR
+ }
+ }
+ else
+ {
+ if (unit->tcubemap)
+ {
+ qglDisable(GL_TEXTURE_CUBE_MAP_ARB);CHECKGLERROR
}
- else
+ }
+ }
+ unit->tcubemap = texcubemap;
+ qglBindTexture(GL_TEXTURE_CUBE_MAP_ARB, unit->tcubemap);CHECKGLERROR
+ }
+}
+
+void R_Mesh_TexBind1D(unsigned int unitnum, int texnum)
+{
+ gltextureunit_t *unit = gl_state.units + unitnum;
+ if (unitnum >= backendimageunits)
+ return;
+ // update 1d texture binding
+ if (unit->t1d != texnum)
+ {
+ GL_ActiveTexture(unitnum);
+ if (unitnum < backendunits)
+ {
+ if (texnum)
+ {
+ if (unit->t1d == 0)
{
- if (!blend)
- {
- blend = 1;
- glEnable(GL_BLEND);
-CHECKGLERROR
- }
+ qglEnable(GL_TEXTURE_1D);CHECKGLERROR
}
}
else
{
- if (!blend)
+ if (unit->t1d)
{
- blend = 1;
- glEnable(GL_BLEND);
-CHECKGLERROR
+ qglDisable(GL_TEXTURE_1D);CHECKGLERROR
}
}
}
- if (depthtest != mesh->depthtest)
+ unit->t1d = texnum;
+ qglBindTexture(GL_TEXTURE_1D, unit->t1d);CHECKGLERROR
+ }
+ // update 2d texture binding
+ if (unit->t2d)
+ {
+ GL_ActiveTexture(unitnum);
+ if (unitnum < backendunits)
{
- depthtest = mesh->depthtest;
- if (depthtest)
- glEnable(GL_DEPTH_TEST);
- else
- glDisable(GL_DEPTH_TEST);
- }
- if (depthmask != mesh->depthmask)
- {
- depthmask = mesh->depthmask;
- glDepthMask((GLboolean) depthmask);
-CHECKGLERROR
- }
-
- firsttriangle = mesh->firsttriangle;
- triangles = mesh->triangles;
- firstvert = mesh->firstvert;
- lastvert = mesh->lastvert;
- mesh = &buf_mesh[++k];
-
- if (meshmerge)
- {
- #if MAX_TEXTUREUNITS != 4
- #error update this code
- #endif
- while (k < currentmesh
- && mesh->blendfunc1 == blendfunc1
- && mesh->blendfunc2 == blendfunc2
- && mesh->depthtest == depthtest
- && mesh->depthmask == depthmask
- && mesh->textures[0] == texture[0]
- && mesh->textures[1] == texture[1]
- && mesh->textures[2] == texture[2]
- && mesh->textures[3] == texture[3]
- && mesh->texturergbscale[0] == texturergbscale[0]
- && mesh->texturergbscale[1] == texturergbscale[1]
- && mesh->texturergbscale[2] == texturergbscale[2]
- && mesh->texturergbscale[3] == texturergbscale[3])
+ if (unit->t2d)
{
- triangles += mesh->triangles;
- if (firstvert > mesh->firstvert)
- firstvert = mesh->firstvert;
- if (lastvert < mesh->lastvert)
- lastvert = mesh->lastvert;
- mesh = &buf_mesh[++k];
+ qglDisable(GL_TEXTURE_2D);CHECKGLERROR
}
}
-
-#ifdef WIN32
- // FIXME: dynamic link to GL so we can get DrawRangeElements on WIN32
- glDrawElements(GL_TRIANGLES, triangles * 3, GL_UNSIGNED_INT, (unsigned int *)&buf_tri[firsttriangle]);
-#else
- glDrawRangeElements(GL_TRIANGLES, firstvert, lastvert + 1, triangles * 3, GL_UNSIGNED_INT, (unsigned int *)&buf_tri[firsttriangle]);
-#endif
-CHECKGLERROR
+ unit->t2d = 0;
+ qglBindTexture(GL_TEXTURE_2D, unit->t2d);CHECKGLERROR
}
-
- currentmesh = 0;
- currenttriangle = 0;
- currentvertex = 0;
-
- GL_UnlockArray();
-CHECKGLERROR
-
- if (backendunits > 1)
+ // update 3d texture binding
+ if (unit->t3d)
{
- for (i = backendunits - 1;i >= 0;i--)
+ GL_ActiveTexture(unitnum);
+ if (unitnum < backendunits)
{
- qglActiveTexture(GL_TEXTURE0_ARB + (unit = i));
-CHECKGLERROR
- glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
-CHECKGLERROR
- if (gl_combine.integer)
+ if (unit->t3d)
{
- glTexEnvf(GL_TEXTURE_ENV, GL_RGB_SCALE_ARB, 1.0f);
-CHECKGLERROR
+ qglDisable(GL_TEXTURE_3D);CHECKGLERROR
}
- if (i > 0)
- {
- glDisable(GL_TEXTURE_2D);
-CHECKGLERROR
- }
- else
+ }
+ unit->t3d = 0;
+ qglBindTexture(GL_TEXTURE_3D, unit->t3d);CHECKGLERROR
+ }
+ // update cubemap texture binding
+ if (unit->tcubemap)
+ {
+ GL_ActiveTexture(unitnum);
+ if (unitnum < backendunits)
+ {
+ if (unit->tcubemap)
{
- glEnable(GL_TEXTURE_2D);
-CHECKGLERROR
+ qglDisable(GL_TEXTURE_CUBE_MAP_ARB);CHECKGLERROR
}
- glBindTexture(GL_TEXTURE_2D, 0);
-CHECKGLERROR
-
- qglClientActiveTexture(GL_TEXTURE0_ARB + (clientunit = i));
-CHECKGLERROR
- glDisableClientState(GL_TEXTURE_COORD_ARRAY);
-CHECKGLERROR
}
+ unit->tcubemap = 0;
+ qglBindTexture(GL_TEXTURE_CUBE_MAP_ARB, unit->tcubemap);CHECKGLERROR
}
- else
- {
- glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
-CHECKGLERROR
- glEnable(GL_TEXTURE_2D);
-CHECKGLERROR
- glDisableClientState(GL_TEXTURE_COORD_ARRAY);
-CHECKGLERROR
- }
- glDisableClientState(GL_COLOR_ARRAY);
-CHECKGLERROR
- glDisableClientState(GL_VERTEX_ARRAY);
-CHECKGLERROR
-
- glDisable(GL_BLEND);
-CHECKGLERROR
- glEnable(GL_DEPTH_TEST);
-CHECKGLERROR
- glDepthMask(true);
-CHECKGLERROR
- glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-CHECKGLERROR
}
-void R_Mesh_AddTransparent(void)
+void R_Mesh_TexBind(unsigned int unitnum, int texnum)
{
- if (gl_mesh_sorttransbymesh.integer)
- {
- int i, j, k;
- float viewdistcompare, centerscaler, dist1, dist2, dist3, center, maxdist;
- buf_vertex_t *vert1, *vert2, *vert3;
- buf_transtri_t *tri;
- buf_mesh_t *mesh, *transmesh;
-
- // process and add transparent mesh triangles
- if (!currenttranstriangle)
- return;
-
- // map farclip to 0-4095 list range
- centerscaler = (TRANSDEPTHRES / r_farclip) * (1.0f / 3.0f);
- viewdistcompare = viewdist + 4.0f;
-
- memset(buf_transtri_list, 0, TRANSDEPTHRES * sizeof(buf_transtri_t *));
-
- k = 0;
- for (j = 0;j < currenttranstriangle;j++)
- {
- tri = &buf_transtri[j];
-
- vert1 = &buf_transvertex[tri->index[0]];
- vert2 = &buf_transvertex[tri->index[1]];
- vert3 = &buf_transvertex[tri->index[2]];
-
- dist1 = DotProduct(vert1->v, vpn);
- dist2 = DotProduct(vert2->v, vpn);
- dist3 = DotProduct(vert3->v, vpn);
-
- maxdist = max(dist1, max(dist2, dist3));
- if (maxdist < viewdistcompare)
- continue;
-
- center = (dist1 + dist2 + dist3) * centerscaler - viewdist;
- #if SLOWMATH
- i = (int) center;
- i = bound(0, i, (TRANSDEPTHRES - 1));
- #else
- if (center < 0.0f)
- center = 0.0f;
- center += 8388608.0f;
- i = *((long *)¢er) & 0x7FFFFF;
- i = min(i, (TRANSDEPTHRES - 1));
- #endif
- tri->next = buf_transtri_list[i];
- buf_transtri_list[i] = tri;
- k++;
- }
-
- #ifndef TRANSBATCH
- if (currentmesh + k > max_meshs || currenttriangle + k > max_batch || currentvertex + currenttransvertex > max_verts)
- R_Mesh_Render();
-
- // note: can't batch these because they can be rendered in any order
- // there can never be more transparent triangles than fit in main buffers
- memcpy(&buf_vertex[currentvertex], &buf_transvertex[0], currenttransvertex * sizeof(buf_vertex_t));
-#if FLOATCOLORS
- if (floatcolors)
- memcpy(&buf_fcolor[currentvertex], &buf_transfcolor[0], currenttransvertex * sizeof(buf_fcolor_t));
- else
-#endif
- memcpy(&buf_bcolor[currentvertex], &buf_transbcolor[0], currenttransvertex * sizeof(buf_bcolor_t));
- for (i = 0;i < backendunits;i++)
- memcpy(&buf_texcoord[i][currentvertex], &buf_transtexcoord[i][0], currenttransvertex * sizeof(buf_texcoord_t));
- #endif
-
- for (i = 0;i < currenttransmesh;i++)
+ gltextureunit_t *unit = gl_state.units + unitnum;
+ if (unitnum >= backendimageunits)
+ return;
+ // update 1d texture binding
+ if (unit->t1d)
+ {
+ GL_ActiveTexture(unitnum);
+ if (unitnum < backendunits)
{
- buf_transmesh[i].transchain = NULL;
- //buf_transmesh[i].transchainpointer = &buf_transmesh[i].transchain;
- buf_transmesh[i].triangles = 0;
+ if (unit->t1d)
+ {
+ qglDisable(GL_TEXTURE_1D);CHECKGLERROR
+ }
}
- transmesh = NULL;
- for (j = 0;j < TRANSDEPTHRES;j++)
+ 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 ((tri = buf_transtri_list[j]))
+ if (texnum)
{
- for (;tri;tri = tri->next)
+ if (unit->t2d == 0)
{
- if (!tri->mesh->transchain)
- {
- tri->mesh->chain = transmesh;
- transmesh = tri->mesh;
- }
- tri->meshsortchain = tri->mesh->transchain;
- tri->mesh->transchain = tri;
- /*
- *tri->mesh->transchainpointer = tri;
- tri->meshsortchain = NULL;
- tri->mesh->transchainpointer = &tri->meshsortchain;
- */
- tri->mesh->triangles++;
+ qglEnable(GL_TEXTURE_2D);CHECKGLERROR
}
}
- }
-
- #if TRANSBATCH
- for (;transmesh;transmesh = transmesh->chain)
- {
- int meshvertexadjust;
- int numverts = transmesh->lastvert - transmesh->firstvert + 1;
- if (currentmesh >= max_meshs || currenttriangle + transmesh->triangles > max_batch || currentvertex + numverts > max_verts)
- R_Mesh_Render();
-
- memcpy(&buf_vertex[currentvertex], &buf_transvertex[transmesh->firstvert], numverts * sizeof(buf_vertex_t));
-#if FLOATCOLORS
- if (floatcolors)
- memcpy(&buf_fcolor[currentvertex], &buf_transfcolor[transmesh->firstvert], numverts * sizeof(buf_fcolor_t));
else
-#endif
- memcpy(&buf_bcolor[currentvertex], &buf_transbcolor[transmesh->firstvert], numverts * sizeof(buf_bcolor_t));
- for (i = 0;i < backendunits && transmesh->textures[i];i++)
- memcpy(&buf_texcoord[i][currentvertex], &buf_transtexcoord[i][transmesh->firstvert], numverts * sizeof(buf_texcoord_t));
-
- mesh = &buf_mesh[currentmesh++];
- *mesh = *transmesh; // copy mesh properties
- mesh->firstvert = currentvertex;
- mesh->lastvert = currentvertex + numverts - 1;
- currentvertex += numverts;
- meshvertexadjust = mesh->firstvert - transmesh->firstvert;
- mesh->firsttriangle = currenttriangle;
- for (tri = transmesh->transchain;tri;tri = tri->meshsortchain)
- {
- buf_tri[currenttriangle].index[0] = tri->index[0] + meshvertexadjust;
- buf_tri[currenttriangle].index[1] = tri->index[1] + meshvertexadjust;
- buf_tri[currenttriangle].index[2] = tri->index[2] + meshvertexadjust;
- /*
- if (tri->mesh != transmesh)
- Sys_Error("!?!");
- if ((unsigned int) buf_tri[currenttriangle].index[0] < (unsigned int) mesh->firstvert
- || (unsigned int) buf_tri[currenttriangle].index[0] > (unsigned int) mesh->lastvert
- || (unsigned int) buf_tri[currenttriangle].index[1] < (unsigned int) mesh->firstvert
- || (unsigned int) buf_tri[currenttriangle].index[1] > (unsigned int) mesh->lastvert
- || (unsigned int) buf_tri[currenttriangle].index[2] < (unsigned int) mesh->firstvert
- || (unsigned int) buf_tri[currenttriangle].index[2] > (unsigned int) mesh->lastvert)
- Sys_Error("!?");
- */
- currenttriangle++;
- }
- /*
- if (mesh->triangles != currenttriangle - mesh->firsttriangle)
- Sys_Error("!");
- */
- }
- #else
- for (;transmesh;transmesh = transmesh->chain)
- {
- mesh = &buf_mesh[currentmesh++];
- *mesh = *transmesh; // copy mesh properties
- mesh->firstvert += currentvertex;
- mesh->lastvert += currentvertex;
- mesh->firsttriangle = currenttriangle;
- for (tri = transmesh->transchain;tri;tri = tri->meshsortchain)
{
- buf_tri[currenttriangle].index[0] = tri->index[0] + currentvertex;
- buf_tri[currenttriangle].index[1] = tri->index[1] + currentvertex;
- buf_tri[currenttriangle].index[2] = tri->index[2] + currentvertex;
- /*
- if (tri->mesh != transmesh)
- Sys_Error("!?!");
- if ((unsigned int) buf_tri[currenttriangle].index[0] < (unsigned int) mesh->firstvert
- || (unsigned int) buf_tri[currenttriangle].index[0] > (unsigned int) mesh->lastvert
- || (unsigned int) buf_tri[currenttriangle].index[1] < (unsigned int) mesh->firstvert
- || (unsigned int) buf_tri[currenttriangle].index[1] > (unsigned int) mesh->lastvert
- || (unsigned int) buf_tri[currenttriangle].index[2] < (unsigned int) mesh->firstvert
- || (unsigned int) buf_tri[currenttriangle].index[2] > (unsigned int) mesh->lastvert)
- Sys_Error("!?");
- */
- currenttriangle++;
- }
- /*
- if (mesh->triangles != currenttriangle - mesh->firsttriangle)
- Sys_Error("!");
- */
- }
- currentvertex += currenttransvertex;
- #endif
-
- currenttransmesh = 0;
- currenttranstriangle = 0;
- currenttransvertex = 0;
- }
- else if (gl_mesh_dupetransverts.integer)
- {
- int i, j, k, index;
- float viewdistcompare, centerscaler, dist1, dist2, dist3, center, maxdist;
- buf_vertex_t *vert1, *vert2, *vert3;
- buf_transtri_t *tri;
- buf_mesh_t *mesh;
-
- // process and add transparent mesh triangles
- if (!currenttranstriangle)
- return;
-
- // map farclip to 0-4095 list range
- centerscaler = (TRANSDEPTHRES / r_farclip) * (1.0f / 3.0f);
- viewdistcompare = viewdist + 4.0f;
-
- memset(buf_transtri_list, 0, TRANSDEPTHRES * sizeof(buf_transtri_t *));
-
- // process in reverse because transtri_list adding code is in reverse as well
- k = 0;
- for (j = currenttranstriangle - 1;j >= 0;j--)
- {
- tri = &buf_transtri[j];
-
- vert1 = &buf_transvertex[tri->index[0]];
- vert2 = &buf_transvertex[tri->index[1]];
- vert3 = &buf_transvertex[tri->index[2]];
-
- dist1 = DotProduct(vert1->v, vpn);
- dist2 = DotProduct(vert2->v, vpn);
- dist3 = DotProduct(vert3->v, vpn);
-
- maxdist = max(dist1, max(dist2, dist3));
- if (maxdist < viewdistcompare)
- continue;
-
- center = (dist1 + dist2 + dist3) * centerscaler - viewdist;
- #if SLOWMATH
- i = (int) center;
- i = bound(0, i, (TRANSDEPTHRES - 1));
- #else
- if (center < 0.0f)
- center = 0.0f;
- center += 8388608.0f;
- i = *((long *)¢er) & 0x7FFFFF;
- i = min(i, (TRANSDEPTHRES - 1));
- #endif
- tri->next = buf_transtri_list[i];
- buf_transtri_list[i] = tri;
- k++;
- }
-
- if (currentmesh + k > max_meshs || currenttriangle + k > max_batch || currentvertex + k * 3 > max_verts)
- R_Mesh_Render();
-
- currenttransmesh = 0;
- currenttranstriangle = 0;
- currenttransvertex = 0;
-
- // note: can't batch these because they can be rendered in any order
- // there can never be more transparent triangles than fit in main buffers
- for (j = TRANSDEPTHRES - 1;j >= 0;j--)
- {
- if ((tri = buf_transtri_list[j]))
- {
- while(tri)
+ if (unit->t2d)
{
- mesh = &buf_mesh[currentmesh++];
- *mesh = *tri->mesh; // copy mesh properties
- mesh->firstvert = currentvertex;
- mesh->lastvert = currentvertex + 2;
- mesh->firsttriangle = currenttriangle;
- mesh->triangles = 1;
- for (k = 0;k < 3;k++)
- {
- index = tri->index[k];
- buf_tri[currenttriangle].index[k] = currentvertex;
- memcpy(buf_vertex[currentvertex].v, buf_transvertex[index].v, sizeof(buf_vertex_t));
-#if FLOATCOLORS
- if (floatcolors)
- memcpy(buf_fcolor[currentvertex].c, buf_transfcolor[index].c, sizeof(buf_fcolor_t));
- else
-#endif
- memcpy(buf_bcolor[currentvertex].c, buf_transbcolor[index].c, sizeof(buf_bcolor_t));
- for (i = 0;i < backendunits && tri->mesh->textures[i];i++)
- memcpy(buf_texcoord[i][currentvertex].t, buf_transtexcoord[i][index].t, sizeof(buf_texcoord_t));
- currentvertex++;
- }
- currenttriangle++;
- tri = tri->next;
+ qglDisable(GL_TEXTURE_2D);CHECKGLERROR
}
}
}
+ unit->t2d = texnum;
+ qglBindTexture(GL_TEXTURE_2D, unit->t2d);CHECKGLERROR
}
- else
+ // update 3d texture binding
+ if (unit->t3d)
{
- int i, j, k;
- float viewdistcompare, centerscaler, dist1, dist2, dist3, center, maxdist;
- buf_vertex_t *vert1, *vert2, *vert3;
- buf_transtri_t *tri;
- buf_mesh_t *mesh;
-
- // process and add transparent mesh triangles
- if (!currenttranstriangle)
- return;
-
- // map farclip to 0-4095 list range
- centerscaler = (TRANSDEPTHRES / r_farclip) * (1.0f / 3.0f);
- viewdistcompare = viewdist + 4.0f;
-
- memset(buf_transtri_list, 0, TRANSDEPTHRES * sizeof(buf_transtri_t *));
-
- // process in reverse because transtri_list adding code is in reverse as well
- k = 0;
- for (j = currenttranstriangle - 1;j >= 0;j--)
- {
- tri = &buf_transtri[j];
-
- vert1 = &buf_transvertex[tri->index[0]];
- vert2 = &buf_transvertex[tri->index[1]];
- vert3 = &buf_transvertex[tri->index[2]];
-
- dist1 = DotProduct(vert1->v, vpn);
- dist2 = DotProduct(vert2->v, vpn);
- dist3 = DotProduct(vert3->v, vpn);
-
- maxdist = max(dist1, max(dist2, dist3));
- if (maxdist < viewdistcompare)
- continue;
-
- center = (dist1 + dist2 + dist3) * centerscaler - viewdist;
- #if SLOWMATH
- i = (int) center;
- i = bound(0, i, (TRANSDEPTHRES - 1));
- #else
- if (center < 0.0f)
- center = 0.0f;
- center += 8388608.0f;
- i = *((long *)¢er) & 0x7FFFFF;
- i = min(i, (TRANSDEPTHRES - 1));
- #endif
- tri->next = buf_transtri_list[i];
- buf_transtri_list[i] = tri;
- k++;
- }
-
- if (currentmesh + k > max_meshs || currenttriangle + k > max_batch || currentvertex + currenttransvertex > max_verts)
- R_Mesh_Render();
-
- // note: can't batch these because they can be rendered in any order
- // there can never be more transparent triangles than fit in main buffers
- memcpy(&buf_vertex[currentvertex], &buf_transvertex[0], currenttransvertex * sizeof(buf_vertex_t));
-#if FLOATCOLORS
- if (floatcolors)
- memcpy(&buf_fcolor[currentvertex], &buf_transfcolor[0], currenttransvertex * sizeof(buf_fcolor_t));
- else
-#endif
- memcpy(&buf_bcolor[currentvertex], &buf_transbcolor[0], currenttransvertex * sizeof(buf_bcolor_t));
- for (i = 0;i < backendunits;i++)
- memcpy(&buf_texcoord[i][currentvertex], &buf_transtexcoord[i][0], currenttransvertex * sizeof(buf_texcoord_t));
-
- for (j = TRANSDEPTHRES - 1;j >= 0;j--)
+ GL_ActiveTexture(unitnum);
+ if (unitnum < backendunits)
{
- if ((tri = buf_transtri_list[j]))
+ if (unit->t3d)
{
- while(tri)
- {
- mesh = &buf_mesh[currentmesh++];
- *mesh = *tri->mesh; // copy mesh properties
- buf_tri[currenttriangle].index[0] = tri->index[0] + currentvertex;
- buf_tri[currenttriangle].index[1] = tri->index[1] + currentvertex;
- buf_tri[currenttriangle].index[2] = tri->index[2] + currentvertex;
- mesh->firstvert = min(buf_tri[currenttriangle].index[0], min(buf_tri[currenttriangle].index[1], buf_tri[currenttriangle].index[2]));
- mesh->lastvert = max(buf_tri[currenttriangle].index[0], max(buf_tri[currenttriangle].index[1], buf_tri[currenttriangle].index[2]));
- mesh->firsttriangle = currenttriangle++;
- mesh->triangles = 1;
- tri = tri->next;
- }
+ qglDisable(GL_TEXTURE_3D);CHECKGLERROR
}
}
- currentvertex += currenttransvertex;
- currenttransmesh = 0;
- currenttranstriangle = 0;
- currenttransvertex = 0;
+ unit->t3d = 0;
+ qglBindTexture(GL_TEXTURE_3D, unit->t3d);CHECKGLERROR
}
-}
-
-void R_Mesh_Draw(const rmeshinfo_t *m)
-{
- // these are static because gcc runs out of virtual registers otherwise
- static int i, j, *index, overbright;
- static float c, *in, scaler;
-#if FLOATCOLORS
- static float cr, cg, cb, ca;
-#endif
- static buf_mesh_t *mesh;
- static buf_vertex_t *vert;
-#if FLOATCOLORS
- static buf_fcolor_t *fcolor;
-#endif
- static buf_bcolor_t *bcolor;
- static buf_texcoord_t *texcoord[MAX_TEXTUREUNITS];
- static buf_transtri_t *tri;
- static buf_bcolor_t flatbcolor;
-
- if (m->index == NULL
- || !m->numtriangles
- || m->vertex == NULL
- || !m->numverts)
- return;
- // ignore meaningless alpha meshs
- if (!m->depthwrite && m->blendfunc1 == GL_SRC_ALPHA && (m->blendfunc2 == GL_ONE || m->blendfunc2 == GL_ONE_MINUS_SRC_ALPHA))
+ // update cubemap texture binding
+ if (unit->tcubemap != 0)
{
- if (m->color)
+ GL_ActiveTexture(unitnum);
+ if (unitnum < backendunits)
{
- for (i = 0, in = m->color + 3;i < m->numverts;i++, (int)in += m->colorstep)
- if (*in >= 0.01f)
- break;
- if (i == m->numverts)
- return;
+ if (unit->tcubemap)
+ {
+ qglDisable(GL_TEXTURE_CUBE_MAP_ARB);CHECKGLERROR
+ }
}
- else if (m->ca < 0.01f)
- return;
+ unit->tcubemap = 0;
+ qglBindTexture(GL_TEXTURE_CUBE_MAP_ARB, unit->tcubemap);CHECKGLERROR
}
+}
- if (!backendactive)
- Sys_Error("R_Mesh_Draw: called when backend is not active\n");
-
- scaler = 1;
- if (m->blendfunc2 == GL_SRC_COLOR)
- {
- if (m->blendfunc1 == GL_DST_COLOR) // 2x modulate with framebuffer
- scaler *= 0.5f;
- }
- else
+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)
{
- if (m->tex[0])
+ GL_ActiveTexture(unitnum);
+ if (unitnum < backendunits)
{
- overbright = gl_combine.integer;
- if (overbright)
- scaler *= 0.25f;
+ if (unit->t1d)
+ {
+ qglDisable(GL_TEXTURE_1D);CHECKGLERROR
+ }
}
- scaler *= overbrightscale;
+ unit->t1d = 0;
+ qglBindTexture(GL_TEXTURE_1D, unit->t1d);CHECKGLERROR
}
-
- if (m->transparent)
+ // update 2d texture binding
+ if (unit->t2d)
{
- if (currenttransmesh >= max_meshs || (currenttranstriangle + m->numtriangles) > max_meshs || (currenttransvertex + m->numverts) > max_verts)
+ GL_ActiveTexture(unitnum);
+ if (unitnum < backendunits)
{
- if (!transranout)
+ if (unit->t2d)
{
- Con_Printf("R_Mesh_Draw: ran out of room for transparent meshs\n");
- transranout = true;
+ qglDisable(GL_TEXTURE_2D);CHECKGLERROR
}
- return;
- }
-
- c_transmeshs++;
- c_transtris += m->numtriangles;
- vert = &buf_transvertex[currenttransvertex];
-#if FLOATCOLORS
- fcolor = &buf_transfcolor[currenttransvertex];
-#endif
- bcolor = &buf_transbcolor[currenttransvertex];
- for (i = 0;i < backendunits;i++)
- texcoord[i] = &buf_transtexcoord[i][currenttransvertex];
-
- // transmesh is only for storage of transparent meshs until they
- // are inserted into the main mesh array
- mesh = &buf_transmesh[currenttransmesh++];
-
- // transparent meshs are broken up into individual triangles which can
- // be sorted by depth
- index = m->index;
- for (i = 0;i < m->numtriangles;i++)
- {
- tri = &buf_transtri[currenttranstriangle++];
- tri->mesh = mesh;
- tri->index[0] = *index++ + currenttransvertex;
- tri->index[1] = *index++ + currenttransvertex;
- tri->index[2] = *index++ + currenttransvertex;
}
-
- mesh->firstvert = currenttransvertex;
- mesh->lastvert = currenttransvertex + m->numverts - 1;
- currenttransvertex += m->numverts;
+ unit->t2d = 0;
+ qglBindTexture(GL_TEXTURE_2D, unit->t2d);CHECKGLERROR
}
- else
+ // update 3d texture binding
+ if (unit->t3d != texnum)
{
- if (m->numtriangles > max_meshs || m->numverts > max_verts)
+ GL_ActiveTexture(unitnum);
+ if (unitnum < backendunits)
{
- Con_Printf("R_Mesh_Draw: mesh too big for buffers\n");
- return;
+ if (texnum)
+ {
+ if (unit->t3d == 0)
+ {
+ qglEnable(GL_TEXTURE_3D);CHECKGLERROR
+ }
+ }
+ else
+ {
+ if (unit->t3d)
+ {
+ qglDisable(GL_TEXTURE_3D);CHECKGLERROR
+ }
+ }
}
-
- if (currentmesh >= max_meshs || (currenttriangle + m->numtriangles) > max_batch || (currentvertex + m->numverts) > max_verts)
- R_Mesh_Render();
-
- c_meshs++;
- c_meshtris += m->numtriangles;
- vert = &buf_vertex[currentvertex];
-#if FLOATCOLORS
- fcolor = &buf_fcolor[currentvertex];
-#endif
- bcolor = &buf_bcolor[currentvertex];
- for (i = 0;i < backendunits;i++)
- texcoord[i] = &buf_texcoord[i][currentvertex];
-
- mesh = &buf_mesh[currentmesh++];
- // opaque meshs are rendered directly
- index = (int *)&buf_tri[currenttriangle];
- mesh->firsttriangle = currenttriangle;
- currenttriangle += m->numtriangles;
- for (i = 0;i < m->numtriangles * 3;i++)
- index[i] = m->index[i] + currentvertex;
-
- mesh->firstvert = currentvertex;
- mesh->lastvert = currentvertex + m->numverts - 1;
- currentvertex += m->numverts;
- }
-
- // code shared for transparent and opaque meshs
- mesh->blendfunc1 = m->blendfunc1;
- mesh->blendfunc2 = m->blendfunc2;
- mesh->depthmask = (m->blendfunc2 == GL_ZERO || m->depthwrite);
- mesh->depthtest = !m->depthdisable;
- mesh->triangles = m->numtriangles;
- j = -1;
- for (i = 0;i < backendunits;i++)
- {
- if ((mesh->textures[i] = m->tex[i]))
- j = i;
- mesh->texturergbscale[i] = m->texrgbscale[i];
- if (mesh->texturergbscale[i] != 1 && mesh->texturergbscale[i] != 2 && mesh->texturergbscale[i] != 4)
- mesh->texturergbscale[i] = 1;
+ unit->t3d = texnum;
+ qglBindTexture(GL_TEXTURE_3D, unit->t3d);CHECKGLERROR
}
- if (overbright && j >= 0)
- mesh->texturergbscale[j] = 4;
-
- if (m->vertexstep != sizeof(buf_vertex_t))
+ // update cubemap texture binding
+ if (unit->tcubemap != 0)
{
- for (i = 0, in = m->vertex;i < m->numverts;i++, (int)in += m->vertexstep)
+ GL_ActiveTexture(unitnum);
+ if (unitnum < backendunits)
{
- vert[i].v[0] = in[0];
- vert[i].v[1] = in[1];
- vert[i].v[2] = in[2];
+ if (unit->tcubemap)
+ {
+ qglDisable(GL_TEXTURE_CUBE_MAP_ARB);CHECKGLERROR
+ }
}
+ unit->tcubemap = 0;
+ qglBindTexture(GL_TEXTURE_CUBE_MAP_ARB, unit->tcubemap);CHECKGLERROR
}
- else
- memcpy(vert, m->vertex, m->numverts * sizeof(buf_vertex_t));
+}
-#if FLOATCOLORS
- if (floatcolors)
+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)
{
- if (m->color)
+ GL_ActiveTexture(unitnum);
+ if (unitnum < backendunits)
{
- for (i = 0, in = m->color;i < m->numverts;i++, (int)in += m->colorstep)
+ if (unit->t1d)
{
- fcolor[i].c[0] = in[0] * scaler;
- fcolor[i].c[1] = in[1] * scaler;
- fcolor[i].c[2] = in[2] * scaler;
- fcolor[i].c[3] = in[3];
+ qglDisable(GL_TEXTURE_1D);CHECKGLERROR
}
}
- else
+ unit->t1d = 0;
+ qglBindTexture(GL_TEXTURE_1D, unit->t1d);CHECKGLERROR
+ }
+ // update 2d texture binding
+ if (unit->t2d)
+ {
+ GL_ActiveTexture(unitnum);
+ if (unitnum < backendunits)
{
- cr = m->cr * scaler;
- cg = m->cg * scaler;
- cb = m->cb * scaler;
- ca = m->ca;
- for (i = 0;i < m->numverts;i++)
+ if (unit->t2d)
{
- fcolor[i].c[0] = cr;
- fcolor[i].c[1] = cg;
- fcolor[i].c[2] = cb;
- fcolor[i].c[3] = ca;
+ qglDisable(GL_TEXTURE_2D);CHECKGLERROR
}
}
+ unit->t2d = 0;
+ qglBindTexture(GL_TEXTURE_2D, unit->t2d);CHECKGLERROR
}
- else
+ // update 3d texture binding
+ if (unit->t3d)
{
-#endif
- if (m->color)
+ GL_ActiveTexture(unitnum);
+ if (unitnum < backendunits)
{
- for (i = 0, in = m->color;i < m->numverts;i++, (int)in += m->colorstep)
+ if (unit->t3d)
{
- // shift float to have 8bit fraction at base of number,
- // then read as integer and kill float bits...
- c = in[0] * scaler + 32768.0f;j = (*((long *)&c) & 0x7FFFFF);if (j > 255) j = 255;bcolor[i].c[0] = (byte) j;
- c = in[1] * scaler + 32768.0f;j = (*((long *)&c) & 0x7FFFFF);if (j > 255) j = 255;bcolor[i].c[1] = (byte) j;
- c = in[2] * scaler + 32768.0f;j = (*((long *)&c) & 0x7FFFFF);if (j > 255) j = 255;bcolor[i].c[2] = (byte) j;
- c = in[3] + 32768.0f;j = (*((long *)&c) & 0x7FFFFF);if (j > 255) j = 255;bcolor[i].c[3] = (byte) j;
+ qglDisable(GL_TEXTURE_3D);CHECKGLERROR
}
}
- else
- {
- c = m->cr * scaler + 32768.0f;j = (*((long *)&c) & 0x7FFFFF);if (j > 255) j = 255;flatbcolor.c[0] = (byte) j;
- c = m->cg * scaler + 32768.0f;j = (*((long *)&c) & 0x7FFFFF);if (j > 255) j = 255;flatbcolor.c[1] = (byte) j;
- c = m->cb * scaler + 32768.0f;j = (*((long *)&c) & 0x7FFFFF);if (j > 255) j = 255;flatbcolor.c[2] = (byte) j;
- c = m->ca + 32768.0f;j = (*((long *)&c) & 0x7FFFFF);if (j > 255) j = 255;flatbcolor.c[3] = (byte) j;
- for (i = 0;i < m->numverts;i++)
- bcolor[i] = flatbcolor;
- }
-#if FLOATCOLORS
+ unit->t3d = 0;
+ qglBindTexture(GL_TEXTURE_3D, unit->t3d);CHECKGLERROR
}
-#endif
-
- for (j = 0;j < MAX_TEXTUREUNITS && m->tex[j];j++)
+ // update cubemap texture binding
+ if (unit->tcubemap != texnum)
{
- if (j >= backendunits)
- Sys_Error("R_Mesh_Draw: texture %i supplied when there are only %i texture units\n", j + 1, backendunits);
- if (m->texcoordstep[j] != sizeof(buf_texcoord_t))
+ GL_ActiveTexture(unitnum);
+ if (unitnum < backendunits)
{
- for (i = 0, in = m->texcoords[j];i < m->numverts;i++, (int)in += m->texcoordstep[j])
+ if (texnum)
+ {
+ if (unit->tcubemap == 0)
+ {
+ qglEnable(GL_TEXTURE_CUBE_MAP_ARB);CHECKGLERROR
+ }
+ }
+ else
{
- texcoord[j][i].t[0] = in[0];
- texcoord[j][i].t[1] = in[1];
+ if (unit->tcubemap)
+ {
+ qglDisable(GL_TEXTURE_CUBE_MAP_ARB);CHECKGLERROR
+ }
}
}
- else
- memcpy(&texcoord[j][0].t[0], m->texcoords[j], m->numverts * sizeof(buf_texcoord_t));
+ unit->tcubemap = texnum;
+ qglBindTexture(GL_TEXTURE_CUBE_MAP_ARB, unit->tcubemap);CHECKGLERROR
}
- #if 0
- for (;j < backendunits;j++)
- memset(&texcoord[j][0].t[0], 0, m->numverts * sizeof(buf_texcoord_t));
- #endif
}
-void R_Mesh_DrawPolygon(rmeshinfo_t *m, int numverts)
+void R_Mesh_TexMatrix(unsigned int unitnum, const matrix4x4_t *matrix)
{
- m->index = polyindexarray;
- m->numverts = numverts;
- m->numtriangles = numverts - 2;
- if (m->numtriangles < 1)
+ gltextureunit_t *unit = gl_state.units + unitnum;
+ if (matrix->m[3][3])
{
- Con_Printf("R_Mesh_DrawPolygon: invalid vertex count\n");
- return;
+ // texmatrix specified, check if it is different
+ if (!unit->texmatrixenabled || memcmp(&unit->matrix, matrix, sizeof(matrix4x4_t)))
+ {
+ matrix4x4_t tempmatrix;
+ unit->texmatrixenabled = true;
+ unit->matrix = *matrix;
+ CHECKGLERROR
+ Matrix4x4_Transpose(&tempmatrix, &unit->matrix);
+ qglMatrixMode(GL_TEXTURE);CHECKGLERROR
+ GL_ActiveTexture(unitnum);
+ qglLoadMatrixf(&tempmatrix.m[0][0]);CHECKGLERROR
+ qglMatrixMode(GL_MODELVIEW);CHECKGLERROR
+ }
}
- if (m->numtriangles >= 256)
+ else
{
- Con_Printf("R_Mesh_DrawPolygon: only up to 256 triangles (258 verts) supported\n");
- return;
+ // 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
+ }
}
- R_Mesh_Draw(m);
}
-// LordHavoc: this thing is evil, but necessary because decals account for so much overhead
-void R_Mesh_DrawDecal(const rmeshinfo_t *m)
+void R_Mesh_TexCombine(unsigned int unitnum, int combinergb, int combinealpha, int rgbscale, int alphascale)
{
- // these are static because gcc runs out of virtual registers otherwise
- static int i, j, *index, overbright;
- static float c, scaler;
-#if FLOATCOLORS
- static float cr, cg, cb, ca;
-#endif
- static buf_mesh_t *mesh;
- static buf_vertex_t *vert;
-#if FLOATCOLORS
- static buf_fcolor_t *fcolor;
-#endif
- static buf_bcolor_t *bcolor;
- static buf_texcoord_t *texcoord;
- static buf_transtri_t *tri;
- static buf_bcolor_t flatbcolor;
-
- if (!backendactive)
- Sys_Error("R_Mesh_Draw: called when backend is not active\n");
-
- scaler = 1;
- if (m->tex[0])
- {
- overbright = gl_combine.integer;
- if (overbright)
- scaler *= 0.25f;
- }
- scaler *= overbrightscale;
-
- if (m->transparent)
+ gltextureunit_t *unit = gl_state.units + unitnum;
+ CHECKGLERROR
+ if (gl_combine.integer)
{
- if (currenttransmesh >= max_meshs || (currenttranstriangle + 2) > max_meshs || (currenttransvertex + 4) > max_verts)
+ // 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)
{
- if (!transranout)
- {
- Con_Printf("R_Mesh_Draw: ran out of room for transparent meshs\n");
- transranout = true;
- }
- return;
+ unit->combinergb = combinergb;
+ GL_ActiveTexture(unitnum);
+ qglTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB, unit->combinergb);CHECKGLERROR
}
-
- c_transmeshs++;
- c_transtris += 2;
- vert = &buf_transvertex[currenttransvertex];
-#if FLOATCOLORS
- fcolor = &buf_transfcolor[currenttransvertex];
-#endif
- bcolor = &buf_transbcolor[currenttransvertex];
- texcoord = &buf_transtexcoord[0][currenttransvertex];
-
- // transmesh is only for storage of transparent meshs until they
- // are inserted into the main mesh array
- mesh = &buf_transmesh[currenttransmesh++];
- mesh->blendfunc1 = m->blendfunc1;
- mesh->blendfunc2 = m->blendfunc2;
- mesh->depthmask = false;
- mesh->depthtest = true;
- mesh->triangles = 2;
- mesh->textures[0] = m->tex[0];
- mesh->texturergbscale[0] = overbright ? 4 : 1;
- for (i = 1;i < backendunits;i++)
- {
- mesh->textures[i] = 0;
- mesh->texturergbscale[i] = 1;
- }
- mesh->chain = NULL;
-
- // transparent meshs are broken up into individual triangles which can
- // be sorted by depth
- index = m->index;
- tri = &buf_transtri[currenttranstriangle++];
- tri->mesh = mesh;
- tri->index[0] = 0 + currenttransvertex;
- tri->index[1] = 1 + currenttransvertex;
- tri->index[2] = 2 + currenttransvertex;
- tri = &buf_transtri[currenttranstriangle++];
- tri->mesh = mesh;
- tri->index[0] = 0 + currenttransvertex;
- tri->index[1] = 2 + currenttransvertex;
- tri->index[2] = 3 + currenttransvertex;
-
- mesh->firstvert = currenttransvertex;
- mesh->lastvert = currenttransvertex + 3;
- currenttransvertex += 4;
- }
- else
- {
- if (2 > max_meshs || 4 > max_verts)
+ if (unit->combinealpha != combinealpha)
{
- Con_Printf("R_Mesh_Draw: mesh too big for buffers\n");
- return;
+ 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
}
-
- if (currentmesh >= max_meshs || (currenttriangle + 2) > max_batch || (currentvertex + 4) > max_verts)
- R_Mesh_Render();
-
- c_meshs++;
- c_meshtris += 2;
- vert = &buf_vertex[currentvertex];
-#if FLOATCOLORS
- fcolor = &buf_fcolor[currentvertex];
-#endif
- bcolor = &buf_bcolor[currentvertex];
- texcoord = &buf_texcoord[0][currentvertex];
-
- mesh = &buf_mesh[currentmesh++];
- mesh->blendfunc1 = m->blendfunc1;
- mesh->blendfunc2 = m->blendfunc2;
- mesh->depthmask = false;
- mesh->depthtest = !m->depthdisable;
- mesh->firsttriangle = currenttriangle;
- mesh->triangles = 2;
- mesh->textures[0] = m->tex[0];
- mesh->texturergbscale[0] = overbright ? 4 : 1;
- for (i = 1;i < backendunits;i++)
- {
- mesh->textures[i] = 0;
- mesh->texturergbscale[i] = 1;
- }
-
- // opaque meshs are rendered directly
- index = (int *)&buf_tri[currenttriangle];
- index[0] = 0 + currentvertex;
- index[1] = 1 + currentvertex;
- index[2] = 2 + currentvertex;
- index[3] = 0 + currentvertex;
- index[4] = 2 + currentvertex;
- index[5] = 3 + currentvertex;
- mesh->firstvert = currentvertex;
- mesh->lastvert = currentvertex + 3;
- currenttriangle += 2;
- currentvertex += 4;
- }
-
- // buf_vertex_t must match the size of the decal vertex array (or vice versa)
- memcpy(vert, m->vertex, 4 * sizeof(buf_vertex_t));
-
-#if FLOATCOLORS
- if (floatcolors)
- {
- cr = m->cr * scaler;
- cg = m->cg * scaler;
- cb = m->cb * scaler;
- ca = m->ca;
- fcolor[0].c[0] = cr;
- fcolor[0].c[1] = cg;
- fcolor[0].c[2] = cb;
- fcolor[0].c[3] = ca;
- fcolor[1].c[0] = cr;
- fcolor[1].c[1] = cg;
- fcolor[1].c[2] = cb;
- fcolor[1].c[3] = ca;
- fcolor[2].c[0] = cr;
- fcolor[2].c[1] = cg;
- fcolor[2].c[2] = cb;
- fcolor[2].c[3] = ca;
- fcolor[3].c[0] = cr;
- fcolor[3].c[1] = cg;
- fcolor[3].c[2] = cb;
- fcolor[3].c[3] = ca;
}
else
{
-#endif
- c = m->cr * scaler + 32768.0f;j = (*((long *)&c) & 0x7FFFFF);if (j > 255) j = 255;flatbcolor.c[0] = (byte) j;
- c = m->cg * scaler + 32768.0f;j = (*((long *)&c) & 0x7FFFFF);if (j > 255) j = 255;flatbcolor.c[1] = (byte) j;
- c = m->cb * scaler + 32768.0f;j = (*((long *)&c) & 0x7FFFFF);if (j > 255) j = 255;flatbcolor.c[2] = (byte) j;
- c = m->ca + 32768.0f;j = (*((long *)&c) & 0x7FFFFF);if (j > 255) j = 255;flatbcolor.c[3] = (byte) j;
- bcolor[0] = flatbcolor;
- bcolor[1] = flatbcolor;
- bcolor[2] = flatbcolor;
- bcolor[3] = flatbcolor;
-#if FLOATCOLORS
+ // 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
+ }
}
-#endif
-
- // buf_texcoord_t must be the same size as the decal texcoord array (or vice versa)
- memcpy(&texcoord[0].t[0], m->texcoords[0], 4 * sizeof(buf_texcoord_t));
}
-/*
-==============================================================================
-
- SCREEN SHOTS
-
-==============================================================================
-*/
-
-float CalcFov (float fov_x, float width, float height);
-void R_ClearScreen(void);
-
-void SCR_ScreenShot(char *filename, int x, int y, int width, int height)
+void R_Mesh_TextureState(const rmeshstate_t *m)
{
- int i;
- byte *buffer;
-
- buffer = Mem_Alloc(tempmempool, width*height*3);
- glReadPixels (x, y, width, height, GL_RGB, GL_UNSIGNED_BYTE, buffer);
- CHECKGLERROR
+ unsigned int i;
- // 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;
+ BACKENDACTIVECHECK
- Image_WriteTGARGB_preflipped(filename, width, height, buffer);
+ CHECKGLERROR
+ if (gl_backend_rebindtextures)
+ {
+ gl_backend_rebindtextures = false;
+ GL_SetupTextureState();
+ CHECKGLERROR
+ }
- Mem_Free(buffer);
+ 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]);
+ else
+ R_Mesh_TexCoordPointer(i, 2, m->pointer_texcoord[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
}
-/*
-==================
-SCR_ScreenShot_f
-==================
-*/
-void SCR_ScreenShot_f (void)
+void R_Mesh_ResetTextureState(void)
{
- int i;
- char filename[16];
- char checkname[MAX_OSPATH];
-//
-// find a file name to save it to
-//
- strcpy(filename, "dp0000.tga");
-
- for (i=0 ; i<=9999 ; i++)
- {
- filename[2] = (i/1000)%10 + '0';
- filename[3] = (i/ 100)%10 + '0';
- filename[4] = (i/ 10)%10 + '0';
- filename[5] = (i/ 1)%10 + '0';
- sprintf (checkname, "%s/%s", com_gamedir, filename);
- if (Sys_FileTime(checkname) == -1)
- break; // file doesn't exist
- }
- if (i==10000)
- {
- Con_Printf ("SCR_ScreenShot_f: Couldn't create a TGA file\n");
- return;
- }
+ unsigned int unitnum;
- SCR_ScreenShot(filename, vid.realx, vid.realy, vid.realwidth, vid.realheight);
- Con_Printf ("Wrote %s\n", filename);
-}
-
-/*
-===============
-R_Envmap_f
-
-Grab six views for environment mapping tests
-===============
-*/
-struct
-{
- float angles[3];
- char *name;
-}
-envmapinfo[6] =
-{
- {{ 0, 0, 0}, "ft"},
- {{ 0, 90, 0}, "rt"},
- {{ 0, 180, 0}, "bk"},
- {{ 0, 270, 0}, "lf"},
- {{-90, 90, 0}, "up"},
- {{ 90, 90, 0}, "dn"}
-};
-static void R_Envmap_f (void)
-{
- int j, size;
- char filename[256], basename[256];
+ BACKENDACTIVECHECK
- if (Cmd_Argc() != 3)
+ CHECKGLERROR
+ if (gl_backend_rebindtextures)
{
- Con_Printf ("envmap <basename> <size>: save out 6 cubic environment map images, usable with loadsky, note that size must one of 128, 256, 512, or 1024 and can't be bigger than your current resolution\n");
- return;
+ gl_backend_rebindtextures = false;
+ GL_SetupTextureState();
+ CHECKGLERROR
}
- if (!r_render.integer)
- return;
-
- strcpy(basename, Cmd_Argv(1));
- size = atoi(Cmd_Argv(2));
- if (size != 128 && size != 256 && size != 512 && size != 1024)
+ for (unitnum = 0;unitnum < backendimageunits;unitnum++)
{
- Con_Printf("envmap: size must be one of 128, 256, 512, or 1024\n");
- return;
+ 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
+ }
}
- if (size > vid.realwidth || size > vid.realheight)
+ for (unitnum = 0;unitnum < backendarrayunits;unitnum++)
{
- Con_Printf("envmap: your resolution is not big enough to render that size\n");
- return;
+ 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
+ }
}
-
- envmap = true;
-
- r_refdef.x = 0;
- r_refdef.y = 0;
- r_refdef.width = size;
- r_refdef.height = size;
-
- r_refdef.fov_x = 90;
- r_refdef.fov_y = 90;
-
- for (j = 0;j < 6;j++)
+ for (unitnum = 0;unitnum < backendunits;unitnum++)
{
- sprintf(filename, "env/%s%s.tga", basename, envmapinfo[j].name);
- VectorCopy(envmapinfo[j].angles, r_refdef.viewangles);
- R_ClearScreen();
- R_RenderView ();
- SCR_ScreenShot(filename, vid.realx, vid.realy, size, size);
+ gltextureunit_t *unit = gl_state.units + unitnum;
+ // 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
+ }
+ if (gl_combine.integer)
+ {
+ // 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
+ {
+ // 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
+ }
+ }
}
-
- envmap = false;
}
-//=============================================================================
-
-void R_ClearScreen(void)
+void R_Mesh_Draw_ShowTris(int firstvertex, int numvertices, int numtriangles, const int *elements)
{
- if (r_render.integer)
+ CHECKGLERROR
+ qglBegin(GL_LINES);
+ for (;numtriangles;numtriangles--, elements += 3)
{
- glClearColor(0,0,0,0);
- CHECKGLERROR
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // LordHavoc: clear the screen (around the view as well)
- CHECKGLERROR
- if (gl_dither.integer)
- glEnable(GL_DITHER);
- else
- glDisable(GL_DITHER);
- CHECKGLERROR
+ qglArrayElement(elements[0]);qglArrayElement(elements[1]);
+ qglArrayElement(elements[1]);qglArrayElement(elements[2]);
+ qglArrayElement(elements[2]);qglArrayElement(elements[0]);
}
-}
-
-/*
-==================
-SCR_UpdateScreen
-
-This is called every frame, and can also be called explicitly to flush
-text to the screen.
-==================
-*/
-void SCR_UpdateScreen (void)
-{
- //Mem_CheckSentinelsGlobal();
- //R_TimeReport("memtest");
-
- glFinish ();
+ qglEnd();
CHECKGLERROR
-
- VID_Finish ();
-
- R_TimeReport("finish");
-
- if (gl_combine.integer && !gl_combine_extension)
- Cvar_SetValue("gl_combine", 0);
-
- lightscalebit = v_overbrightbits.integer;
- if (gl_combine.integer && r_multitexture.integer)
- lightscalebit += 2;
-
- lightscale = 1.0f / (float) (1 << lightscalebit);
- overbrightscale = 1.0f / (float) (1 << v_overbrightbits.integer);
-
- R_TimeReport("setup");
-
- R_ClearScreen();
-
- R_TimeReport("clear");
-
- if (scr_conlines < vid.conheight)
- R_RenderView();
-
- // draw 2D stuff
- R_DrawQueue();
}
projects / xonotic / darkplaces.git / blobdiff