X-Git-Url: http://de.git.xonotic.org/?p=xonotic%2Fdarkplaces.git;a=blobdiff_plain;f=gl_backend.c;h=2ec09f0bc95c0d97e1866405a9bba87fe4ce67c9;hp=783494886ff3ca928c74e3bf7ab76f5f45083a93;hb=1740f737276f086c2f19758f72881a20e5070b57;hpb=ebe607a843d55d9cfb48f6b1859f7c54a48e4b38 diff --git a/gl_backend.c b/gl_backend.c index 78349488..2ec09f0b 100644 --- a/gl_backend.c +++ b/gl_backend.c @@ -1,1576 +1,734 @@ #include "quakedef.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_maxverts = {0, "gl_mesh_maxverts", "1024"}; +cvar_t gl_mesh_floatcolors = {0, "gl_mesh_floatcolors", "1"}; +cvar_t gl_mesh_drawrangeelements = {0, "gl_mesh_drawrangeelements", "1"}; -int lightscalebit; -float lightscale; -float overbrightscale; +cvar_t r_render = {0, "r_render", "1"}; +cvar_t gl_dither = {CVAR_SAVE, "gl_dither", "1"}; // whether or not to use dithering +cvar_t gl_lockarrays = {0, "gl_lockarrays", "1"}; -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 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"}; -static cvar_t gl_mesh_floatcolors = {0, "gl_mesh_floatcolors", "0"}; - -typedef struct buf_mesh_s -{ - //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; -} -buf_mesh_t; - -typedef struct buf_transtri_s -{ - struct buf_transtri_s *next; - struct buf_transtri_s *meshsortchain; - buf_mesh_t *mesh; - int index[3]; -} -buf_transtri_t; +int gl_maxdrawrangeelementsvertices; +int gl_maxdrawrangeelementsindices; -typedef struct buf_tri_s -{ - int index[3]; -} -buf_tri_t; +#ifdef DEBUGGL +int errornumber = 0; -typedef struct +void GL_PrintError(int errornumber, char *filename, int linenumber) { - float v[4]; + 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; + } } -buf_vertex_t; +#endif -typedef struct -{ - float c[4]; -} -buf_fcolor_t; +#define BACKENDACTIVECHECK if (!backendactive) Sys_Error("GL backend function called when backend is not active\n"); -typedef struct -{ - byte c[4]; -} -buf_bcolor_t; +int c_meshs, c_meshelements; -typedef struct -{ - float t[2]; -} -buf_texcoord_t; - -static float meshfarclip; -static int currentmesh, currenttriangle, currentvertex, backendunits, backendactive, meshmerge, transranout; -static buf_mesh_t *buf_mesh; -static buf_tri_t *buf_tri; -static buf_vertex_t *buf_vertex; -static buf_fcolor_t *buf_fcolor; -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_sorttranstri; -static buf_transtri_t **buf_sorttranstri_list; -static buf_tri_t *buf_transtri; -static buf_vertex_t *buf_transvertex; -static buf_fcolor_t *buf_transfcolor; -static buf_texcoord_t *buf_transtexcoord[MAX_TEXTUREUNITS]; +void SCR_ScreenShot_f (void); +// these are externally accessible +int r_lightmapscalebit; +float r_colorscale; +float *varray_vertex; +float *varray_color; +float *varray_texcoord[MAX_TEXTUREUNITS]; +int mesh_maxverts; + +static matrix4x4_t backend_viewmatrix; +static matrix4x4_t backend_modelmatrix; +static matrix4x4_t backend_modelviewmatrix; +static matrix4x4_t backend_glmodelviewmatrix; + +static int backendunits, backendactive; +static qbyte *varray_bcolor; static mempool_t *gl_backend_mempool; -static int resizingbuffers = false; -static void gl_backend_start(void) +int polygonelements[768]; + +void GL_Backend_AllocArrays(void) { int i; - max_verts = max_meshs * 3; + 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; + } if (!gl_backend_mempool) gl_backend_mempool = Mem_AllocPool("GL_Backend"); -#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));\ - } - - BACKENDALLOC(buf_mesh, max_meshs, buf_mesh_t) - BACKENDALLOC(buf_tri, max_meshs, buf_tri_t) - BACKENDALLOC(buf_vertex, max_verts, buf_vertex_t) - BACKENDALLOC(buf_fcolor, max_verts, buf_fcolor_t) - BACKENDALLOC(buf_bcolor, max_verts, buf_bcolor_t) - - BACKENDALLOC(buf_transmesh, max_meshs, buf_mesh_t) - BACKENDALLOC(buf_sorttranstri, max_meshs, buf_transtri_t) - BACKENDALLOC(buf_sorttranstri_list, TRANSDEPTHRES, buf_transtri_t *) - BACKENDALLOC(buf_transtri, max_meshs, buf_tri_t) - BACKENDALLOC(buf_transvertex, max_verts, buf_vertex_t) - BACKENDALLOC(buf_transfcolor, max_verts, buf_fcolor_t) + varray_vertex = Mem_Alloc(gl_backend_mempool, mesh_maxverts * sizeof(float[4])); + varray_color = Mem_Alloc(gl_backend_mempool, mesh_maxverts * sizeof(float[4])); + varray_bcolor = Mem_Alloc(gl_backend_mempool, mesh_maxverts * sizeof(qbyte[4])); + for (i = 0;i < backendunits;i++) + varray_texcoord[i] = Mem_Alloc(gl_backend_mempool, mesh_maxverts * sizeof(float[2])); + for (;i < MAX_TEXTUREUNITS;i++) + varray_texcoord[i] = NULL; +} +void GL_Backend_FreeArrays(int resizingbuffers) +{ + int i; + if (resizingbuffers) + Mem_EmptyPool(gl_backend_mempool); + else + Mem_FreePool(&gl_backend_mempool); + varray_vertex = NULL; + varray_color = NULL; + varray_bcolor = NULL; for (i = 0;i < MAX_TEXTUREUNITS;i++) + varray_texcoord[i] = NULL; +} + +static void gl_backend_start(void) +{ + Con_Printf("OpenGL Backend started with gl_mesh_maxverts %i\n", gl_mesh_maxverts.integer); + if (qglDrawRangeElements != NULL) { - // only allocate as many texcoord arrays as we need - if (i < gl_textureunits) - { - BACKENDALLOC(buf_texcoord[i], max_verts, buf_texcoord_t) - BACKENDALLOC(buf_transtexcoord[i], max_verts, buf_texcoord_t) - } - else - { - buf_texcoord[i] = NULL; - buf_transtexcoord[i] = NULL; - } + qglGetIntegerv(GL_MAX_ELEMENTS_VERTICES, &gl_maxdrawrangeelementsvertices); + qglGetIntegerv(GL_MAX_ELEMENTS_INDICES, &gl_maxdrawrangeelementsindices); + CHECKGLERROR + Con_Printf("glDrawRangeElements detected (max vertices %i, max indices %i)\n", gl_maxdrawrangeelementsvertices, gl_maxdrawrangeelementsindices); } + if (strstr(gl_renderer, "3Dfx")) + { + Con_Printf("3Dfx driver detected, forcing gl_mesh_floatcolors to 0 to prevent crashs\n"); + Cvar_SetValueQuick(&gl_mesh_floatcolors, 0); + } + backendunits = min(MAX_TEXTUREUNITS, gl_textureunits); + + GL_Backend_AllocArrays(); + backendactive = true; } static void gl_backend_shutdown(void) { - if (resizingbuffers) - Mem_EmptyPool(gl_backend_mempool); - else - Mem_FreePool(&gl_backend_mempool); - backendunits = 0; backendactive = false; + + Con_Printf("OpenGL Backend shutting down\n"); + + GL_Backend_FreeArrays(false); } -static void gl_backend_bufferchanges(int init) +void GL_Backend_CheckCvars(void) { // 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); - - 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); - - max_batch = gl_mesh_batchtriangles.integer; - - if (max_meshs != gl_mesh_maxtriangles.integer) - { - max_meshs = gl_mesh_maxtriangles.integer; - - if (!init) - { - resizingbuffers = true; - gl_backend_shutdown(); - gl_backend_start(); - resizingbuffers = false; - } - } + if (gl_mesh_maxverts.integer < 1024) + Cvar_SetValueQuick(&gl_mesh_maxverts, 1024); + if (gl_mesh_maxverts.integer > 21760) + Cvar_SetValueQuick(&gl_mesh_maxverts, 21760); } -float r_farclip, r_newfarclip; +void GL_Backend_ResizeArrays(int numtriangles) +{ + Cvar_SetValueQuick(&gl_mesh_maxverts, numtriangles); + GL_Backend_CheckCvars(); + mesh_maxverts = gl_mesh_maxverts.integer; + GL_Backend_FreeArrays(true); + GL_Backend_AllocArrays(); +} static void gl_backend_newmap(void) { - r_farclip = r_newfarclip = 2048.0f; } -int polyindexarray[768]; - void gl_backend_init(void) { - int i; - - Cvar_RegisterVariable (&r_render); - Cvar_RegisterVariable (&gl_dither); + Cvar_RegisterVariable(&r_render); + Cvar_RegisterVariable(&gl_dither); + Cvar_RegisterVariable(&gl_lockarrays); #ifdef NORENDER Cvar_SetValue("r_render", 0); #endif - Cmd_AddCommand ("screenshot",SCR_ScreenShot_f); - Cmd_AddCommand ("envmap", R_Envmap_f); - - Cvar_RegisterVariable(&gl_mesh_maxtriangles); - Cvar_RegisterVariable(&gl_mesh_batchtriangles); - Cvar_RegisterVariable(&gl_mesh_merge); + Cvar_RegisterVariable(&gl_mesh_maxverts); Cvar_RegisterVariable(&gl_mesh_floatcolors); + Cvar_RegisterVariable(&gl_mesh_drawrangeelements); + GL_Backend_CheckCvars(); R_RegisterModule("GL_Backend", gl_backend_start, gl_backend_shutdown, gl_backend_newmap); - gl_backend_bufferchanges(true); - for (i = 0;i < 256;i++) - { - polyindexarray[i*3+0] = 0; - polyindexarray[i*3+1] = i + 1; - polyindexarray[i*3+2] = i + 2; - } } -static void MYgluPerspective(GLdouble fovx, GLdouble fovy, GLdouble aspect, GLdouble zNear, GLdouble zFar ) -{ - GLdouble xmax, ymax; - - xmax = zNear * tan( fovx * M_PI / 360.0 ) * aspect; - ymax = zNear * tan( fovy * M_PI / 360.0 ); - - glFrustum(-xmax, xmax, -ymax, ymax, zNear, zFar ); -} - - -/* -============= -GL_SetupFrame -============= -*/ -static void GL_SetupFrame (void) +void GL_SetupView_ViewPort (int x, int y, int width, int height) { if (!r_render.integer) return; -// glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // LordHavoc: moved to SCR_UpdateScreen - gldepthmin = 0; - gldepthmax = 1; - glDepthFunc (GL_LEQUAL); - - glDepthRange (gldepthmin, gldepthmax); - - // update farclip based on previous frame - r_farclip = r_newfarclip; - - // 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); + qglViewport(x, vid.realheight - (y + height), width, height); + CHECKGLERROR } -static float viewdist; - -int c_meshs, c_meshtris, c_transmeshs, c_transtris; - -// called at beginning of frame -void R_Mesh_Clear(void) +void GL_SetupView_Orientation_Identity (void) { - 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; - transranout = false; - viewdist = DotProduct(r_origin, vpn); - - c_meshs = 0; - c_meshtris = 0; - c_transmeshs = 0; - c_transtris = 0; - - GL_SetupFrame(); + Matrix4x4_CreateIdentity(&backend_viewmatrix); + memset(&backend_modelmatrix, 0, sizeof(backend_modelmatrix)); } -#ifdef DEBUGGL -void GL_PrintError(int errornumber, char *filename, int linenumber) +void GL_SetupView_Orientation_FromEntity (vec3_t origin, vec3_t angles) { - switch(errornumber) - { - 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; - } + Matrix4x4_CreateRotate(&backend_viewmatrix, -90, 1, 0, 0); + Matrix4x4_ConcatRotate(&backend_viewmatrix, 90, 0, 0, 1); + Matrix4x4_ConcatRotate(&backend_viewmatrix, -angles[2], 1, 0, 0); + Matrix4x4_ConcatRotate(&backend_viewmatrix, -angles[0], 0, 1, 0); + Matrix4x4_ConcatRotate(&backend_viewmatrix, -angles[1], 0, 0, 1); + Matrix4x4_ConcatTranslate(&backend_viewmatrix, -origin[0], -origin[1], -origin[2]); + memset(&backend_modelmatrix, 0, sizeof(backend_modelmatrix)); } -int errornumber = 0; -#endif - -// renders mesh buffers, called to flush buffers when full -void R_Mesh_Render(void) +void GL_SetupView_Mode_Perspective (double aspect, double fovx, double fovy, double zNear, double zFar) { - 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; - unsigned int *index; - // float to byte color conversion - int *icolor; - float *fcolor; - byte *bcolor; - if (!backendactive) - Sys_Error("R_Mesh_Render: called when backend is not active\n"); - if (!currentmesh) - return; + double xmax, ymax; -CHECKGLERROR + if (!r_render.integer) + return; - // push out farclip based on vertices - for (i = 0;i < currentvertex;i++) - { - farclip = DotProduct(buf_vertex[i].v, vpn); - if (meshfarclip < farclip) - meshfarclip = farclip; - } + // set up viewpoint + qglMatrixMode(GL_PROJECTION);CHECKGLERROR + qglLoadIdentity ();CHECKGLERROR + // pyramid slopes + xmax = zNear * tan(fovx * M_PI / 360.0); + ymax = zNear * tan(fovy * M_PI / 360.0); + // set view pyramid + qglFrustum(-xmax, xmax, -ymax, ymax, zNear, zFar);CHECKGLERROR + qglMatrixMode(GL_MODELVIEW);CHECKGLERROR + GL_SetupView_Orientation_Identity(); +} - farclip = meshfarclip + 256.0f - viewdist; // + 256 just to be safe +void GL_SetupView_Mode_Ortho (double x1, double y1, double x2, double y2, double zNear, double zFar) +{ + if (!r_render.integer) + return; - // push out farclip for next frame - if (farclip > r_newfarclip) - r_newfarclip = ceil((farclip + 255) / 256) * 256 + 256; + // set up viewpoint + qglMatrixMode(GL_PROJECTION);CHECKGLERROR + qglLoadIdentity ();CHECKGLERROR + qglOrtho(x1, x2, y2, y1, zNear, zFar); + qglMatrixMode(GL_MODELVIEW);CHECKGLERROR + GL_SetupView_Orientation_Identity(); +} - 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 (gl_mesh_floatcolors.integer) - { - glColorPointer(4, GL_FLOAT, sizeof(buf_fcolor_t), buf_fcolor); -CHECKGLERROR - } - else - { - // shift float to have 8bit fraction at base of number - for (i = 0, fcolor = &buf_fcolor->c[0];i < currentvertex;i++) - { - *fcolor++ += 32768.0f; - *fcolor++ += 32768.0f; - *fcolor++ += 32768.0f; - *fcolor++ += 32768.0f; - } - // then read as integer and kill float bits... - for (i = 0, icolor = (int *)&buf_fcolor->c[0], bcolor = &buf_bcolor->c[0];i < currentvertex;i++) - { - k = (*icolor++) & 0x7FFFFF;*bcolor++ = k > 255 ? 255 : k; - k = (*icolor++) & 0x7FFFFF;*bcolor++ = k > 255 ? 255 : k; - k = (*icolor++) & 0x7FFFFF;*bcolor++ = k > 255 ? 255 : k; - k = (*icolor++) & 0x7FFFFF;*bcolor++ = k > 255 ? 255 : k; - } - glColorPointer(4, GL_UNSIGNED_BYTE, sizeof(buf_bcolor_t), buf_bcolor); -CHECKGLERROR - } - glEnableClientState(GL_COLOR_ARRAY); -CHECKGLERROR +static struct +{ + int blendfunc1; + int blendfunc2; + int blend; + GLboolean depthmask; + int depthdisable; + int unit; + int clientunit; + int texture[MAX_TEXTUREUNITS]; + float texturergbscale[MAX_TEXTUREUNITS]; + int colorarray; +} +gl_state; +void GL_SetupTextureState(void) +{ + int i; if (backendunits > 1) { for (i = 0;i < backendunits;i++) { - qglActiveTexture(GL_TEXTURE0_ARB + (unit = i)); -CHECKGLERROR - glBindTexture(GL_TEXTURE_2D, (texture[i] = 0)); -CHECKGLERROR - glDisable(GL_TEXTURE_2D); -CHECKGLERROR + qglActiveTexture(GL_TEXTURE0_ARB + (gl_state.unit = i));CHECKGLERROR + qglBindTexture(GL_TEXTURE_2D, gl_state.texture[i]);CHECKGLERROR if (gl_combine.integer) { - 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 + qglTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_ARB);CHECKGLERROR + qglTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB, GL_MODULATE);CHECKGLERROR + qglTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB_ARB, GL_TEXTURE);CHECKGLERROR + qglTexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_RGB_ARB, GL_PREVIOUS_ARB);CHECKGLERROR + qglTexEnvi(GL_TEXTURE_ENV, GL_SOURCE2_RGB_ARB, GL_CONSTANT_ARB);CHECKGLERROR + qglTexEnvi(GL_TEXTURE_ENV, GL_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, gl_state.texturergbscale[i]);CHECKGLERROR + qglTexEnvi(GL_TEXTURE_ENV, GL_ALPHA_SCALE, 1);CHECKGLERROR } else { - glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE); -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 - } - } - 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;) - { - mesh = &buf_mesh[k]; - - if (backendunits > 1) - { -// int topunit = 0; - for (i = 0;i < backendunits;i++) - { - if (texture[i] != mesh->textures[i]) - { - 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 - } - } - if (texturergbscale[i] != mesh->texturergbscale[i]) - { - if (unit != i) - { - qglActiveTexture(GL_TEXTURE0_ARB + (unit = i)); -CHECKGLERROR - } - glTexEnvf(GL_TEXTURE_ENV, GL_RGB_SCALE_ARB, (texturergbscale[i] = mesh->texturergbscale[i])); -CHECKGLERROR - } -// if (texture[i]) -// topunit = i; + qglTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);CHECKGLERROR } -// if (unit != topunit) -// { -// qglActiveTexture(GL_TEXTURE0_ARB + (unit = topunit)); -//CHECKGLERROR -// } - } - else - { - if (texture[0] != mesh->textures[0]) + if (gl_state.texture[i]) { - if (texture[0] == 0) - { - glEnable(GL_TEXTURE_2D); -CHECKGLERROR - glEnableClientState(GL_TEXTURE_COORD_ARRAY); -CHECKGLERROR - } - glBindTexture(GL_TEXTURE_2D, (texture[0] = mesh->textures[0])); -CHECKGLERROR - if (texture[0] == 0) - { - glDisable(GL_TEXTURE_2D); -CHECKGLERROR - glDisableClientState(GL_TEXTURE_COORD_ARRAY); -CHECKGLERROR - } - } - } - if (blendfunc1 != mesh->blendfunc1 || blendfunc2 != mesh->blendfunc2) - { - blendfunc1 = mesh->blendfunc1; - blendfunc2 = mesh->blendfunc2; - glBlendFunc(blendfunc1, blendfunc2); -CHECKGLERROR - if (blendfunc2 == GL_ZERO) - { - if (blendfunc1 == GL_ONE) - { - if (blend) - { - blend = 0; - glDisable(GL_BLEND); -CHECKGLERROR - } - } - else - { - if (!blend) - { - blend = 1; - glEnable(GL_BLEND); -CHECKGLERROR - } - } + qglEnable(GL_TEXTURE_2D);CHECKGLERROR } else { - if (!blend) - { - blend = 1; - glEnable(GL_BLEND); -CHECKGLERROR - } + qglDisable(GL_TEXTURE_2D);CHECKGLERROR } - } - if (depthtest != mesh->depthtest) - { - 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]) + qglClientActiveTexture(GL_TEXTURE0_ARB + (gl_state.clientunit = i));CHECKGLERROR + qglTexCoordPointer(2, GL_FLOAT, sizeof(float[2]), varray_texcoord[i]);CHECKGLERROR + if (gl_state.texture[i]) { - triangles += mesh->triangles; - if (firstvert > mesh->firstvert) - firstvert = mesh->firstvert; - if (lastvert < mesh->lastvert) - lastvert = mesh->lastvert; - mesh = &buf_mesh[++k]; - } - } - - index = (unsigned int *)&buf_tri[firsttriangle].index[0]; - for (i = 0;i < triangles * 3;i++) - index[i] += firstvert; - -#ifdef WIN32 - // FIXME: dynamic link to GL so we can get DrawRangeElements on WIN32 - glDrawElements(GL_TRIANGLES, triangles * 3, GL_UNSIGNED_INT, index); -#else - glDrawRangeElements(GL_TRIANGLES, firstvert, lastvert + 1, triangles * 3, GL_UNSIGNED_INT, index); -#endif -CHECKGLERROR - } - - currentmesh = 0; - currenttriangle = 0; - currentvertex = 0; - - GL_UnlockArray(); -CHECKGLERROR - - if (backendunits > 1) - { - for (i = backendunits - 1;i >= 0;i--) - { - qglActiveTexture(GL_TEXTURE0_ARB + (unit = i)); -CHECKGLERROR - glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE); -CHECKGLERROR - if (gl_combine.integer) - { - glTexEnvf(GL_TEXTURE_ENV, GL_RGB_SCALE_ARB, 1.0f); -CHECKGLERROR - } - if (i > 0) - { - glDisable(GL_TEXTURE_2D); -CHECKGLERROR + qglEnableClientState(GL_TEXTURE_COORD_ARRAY);CHECKGLERROR } else { - glEnable(GL_TEXTURE_2D); -CHECKGLERROR + qglDisableClientState(GL_TEXTURE_COORD_ARRAY);CHECKGLERROR } - glBindTexture(GL_TEXTURE_2D, 0); -CHECKGLERROR - - qglClientActiveTexture(GL_TEXTURE0_ARB + (clientunit = i)); -CHECKGLERROR - glDisableClientState(GL_TEXTURE_COORD_ARRAY); -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) -{ - 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, *transmesh; - - if (!currenttransmesh) - return; - - // convert index data to transtris for sorting - for (j = 0;j < currenttransmesh;j++) - { - mesh = buf_transmesh + j; - k = mesh->firsttriangle; - index = &buf_transtri[k].index[0]; - for (i = 0;i < mesh->triangles;i++) - { - tri = &buf_sorttranstri[k++]; - tri->mesh = mesh; - tri->index[0] = *index++; - tri->index[1] = *index++; - tri->index[2] = *index++; - } - } - - // map farclip to 0-4095 list range - centerscaler = (TRANSDEPTHRES / r_farclip) * (1.0f / 3.0f); - viewdistcompare = viewdist + 4.0f; - - memset(buf_sorttranstri_list, 0, TRANSDEPTHRES * sizeof(buf_transtri_t *)); - - k = 0; - for (j = 0;j < currenttranstriangle;j++) - { - tri = &buf_sorttranstri[j]; - i = tri->mesh->firstvert; - - vert1 = &buf_transvertex[tri->index[0] + i]; - vert2 = &buf_transvertex[tri->index[1] + i]; - vert3 = &buf_transvertex[tri->index[2] + i]; - - 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_sorttranstri_list[i]; - buf_sorttranstri_list[i] = tri; - k++; - } - - //if (currentmesh + k > max_meshs || currenttriangle + k > max_batch || currentvertex + currenttransvertex > max_verts) - // R_Mesh_Render(); - - for (i = 0;i < currenttransmesh;i++) - buf_transmesh[i].transchain = NULL; - transmesh = NULL; - for (j = 0;j < TRANSDEPTHRES;j++) - { - if ((tri = buf_sorttranstri_list[j])) - { - for (;tri;tri = tri->next) - { - if (!tri->mesh->transchain) - { - tri->mesh->chain = transmesh; - transmesh = tri->mesh; - } - tri->meshsortchain = tri->mesh->transchain; - tri->mesh->transchain = tri; - } - } - } - - for (;transmesh;transmesh = transmesh->chain) - { - 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)); - memcpy(&buf_fcolor[currentvertex], &buf_transfcolor[transmesh->firstvert], numverts * sizeof(buf_fcolor_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; - mesh->firsttriangle = currenttriangle; - for (tri = transmesh->transchain;tri;tri = tri->meshsortchain) - { - buf_tri[currenttriangle].index[0] = tri->index[0]; - buf_tri[currenttriangle].index[1] = tri->index[1]; - buf_tri[currenttriangle].index[2] = tri->index[2]; - currenttriangle++; - } - mesh->triangles = currenttriangle - mesh->firsttriangle; - } - - currenttransmesh = 0; - currenttranstriangle = 0; - currenttransvertex = 0; -} - -void R_Mesh_Draw(const rmeshinfo_t *m) -{ - // these are static because gcc runs out of virtual registers otherwise - static int i, j, overbright; - static float *in, scaler; - static float cr, cg, cb, ca; - static buf_mesh_t *mesh; - static buf_vertex_t *vert; - static buf_fcolor_t *fcolor; - static buf_texcoord_t *texcoord[MAX_TEXTUREUNITS]; - - if (!backendactive) - Sys_Error("R_Mesh_Draw: called when backend is not active\n"); - - if (m->index == NULL - || !m->numtriangles - || m->vertex == NULL - || !m->numverts) - Host_Error("R_Mesh_Draw: no triangles or verts\n"); - - // ignore meaningless alpha meshs - if (!m->depthwrite && m->blendfunc1 == GL_SRC_ALPHA && (m->blendfunc2 == GL_ONE || m->blendfunc2 == GL_ONE_MINUS_SRC_ALPHA)) - { - if (m->color) - { - 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; - } - else if (m->ca < 0.01f) - return; - } - - 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 - { - if (m->tex[0]) + qglBindTexture(GL_TEXTURE_2D, gl_state.texture[0]);CHECKGLERROR + qglTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);CHECKGLERROR + if (gl_state.texture[0]) { - overbright = gl_combine.integer; - if (overbright) - scaler *= 0.25f; + qglEnable(GL_TEXTURE_2D);CHECKGLERROR } - scaler *= overbrightscale; - } - - if (m->transparent) - { - if (currenttransmesh >= max_meshs || (currenttranstriangle + m->numtriangles) > max_meshs || (currenttransvertex + m->numverts) > max_verts) + else { - if (!transranout) - { - Con_Printf("R_Mesh_Draw: ran out of room for transparent meshs\n"); - transranout = true; - } - return; + qglDisable(GL_TEXTURE_2D);CHECKGLERROR } - - c_transmeshs++; - c_transtris += m->numtriangles; - vert = &buf_transvertex[currenttransvertex]; - fcolor = &buf_transfcolor[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++]; - mesh->firsttriangle = currenttranstriangle; - memcpy(&buf_transtri[currenttranstriangle].index[0], m->index, sizeof(int[3]) * m->numtriangles); - currenttranstriangle += m->numtriangles; - - mesh->firstvert = currenttransvertex; - mesh->lastvert = currenttransvertex + m->numverts - 1; - currenttransvertex += m->numverts; - } - else - { - if (m->numtriangles > max_meshs || m->numverts > max_verts) + qglTexCoordPointer(2, GL_FLOAT, sizeof(float[2]), varray_texcoord[0]);CHECKGLERROR + if (gl_state.texture[0]) { - Con_Printf("R_Mesh_Draw: mesh too big for buffers\n"); - return; + qglEnableClientState(GL_TEXTURE_COORD_ARRAY);CHECKGLERROR + } + else + { + qglDisableClientState(GL_TEXTURE_COORD_ARRAY);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]; - fcolor = &buf_fcolor[currentvertex]; - for (i = 0;i < backendunits;i++) - texcoord[i] = &buf_texcoord[i][currentvertex]; - - // opaque meshs are rendered directly - mesh = &buf_mesh[currentmesh++]; - mesh->firsttriangle = currenttriangle; - memcpy(&buf_tri[currenttriangle].index[0], m->index, sizeof(int[3]) * m->numtriangles); - currenttriangle += m->numtriangles; - - mesh->firstvert = currentvertex; - mesh->lastvert = currentvertex + m->numverts - 1; - currentvertex += m->numverts; } +} + +void GL_Backend_ResetState(void) +{ + int i; + gl_state.unit = 0; + gl_state.clientunit = 0; - // 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; + gl_state.texture[i] = 0; + gl_state.texturergbscale[i] = 1; } - if (overbright && j >= 0) - mesh->texturergbscale[j] = 4; - if (m->vertexstep != sizeof(buf_vertex_t)) - { - for (i = 0, in = m->vertex;i < m->numverts;i++, (int)in += m->vertexstep) - { - vert[i].v[0] = in[0]; - vert[i].v[1] = in[1]; - vert[i].v[2] = in[2]; - } - } - else - memcpy(vert, m->vertex, m->numverts * sizeof(buf_vertex_t)); + qglEnable(GL_CULL_FACE);CHECKGLERROR + qglCullFace(GL_FRONT);CHECKGLERROR + + gl_state.depthdisable = false; + qglEnable(GL_DEPTH_TEST);CHECKGLERROR + + gl_state.blendfunc1 = GL_ONE; + gl_state.blendfunc2 = GL_ZERO; + qglBlendFunc(gl_state.blendfunc1, gl_state.blendfunc2);CHECKGLERROR + + gl_state.blend = 0; + qglDisable(GL_BLEND);CHECKGLERROR + + gl_state.depthmask = GL_TRUE; + qglDepthMask(gl_state.depthmask);CHECKGLERROR - if (m->color) + qglVertexPointer(3, GL_FLOAT, sizeof(float[4]), varray_vertex);CHECKGLERROR + qglEnableClientState(GL_VERTEX_ARRAY);CHECKGLERROR + if (gl_mesh_floatcolors.integer) { - for (i = 0, in = m->color;i < m->numverts;i++, (int)in += m->colorstep) - { - 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]; - } + qglColorPointer(4, GL_FLOAT, sizeof(float[4]), varray_color);CHECKGLERROR } else { - cr = m->cr * scaler; - cg = m->cg * scaler; - cb = m->cb * scaler; - ca = m->ca; - for (i = 0;i < m->numverts;i++) - { - fcolor[i].c[0] = cr; - fcolor[i].c[1] = cg; - fcolor[i].c[2] = cb; - fcolor[i].c[3] = ca; - } - } - - for (j = 0;j < MAX_TEXTUREUNITS && m->tex[j];j++) - { - 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)) - { - for (i = 0, in = m->texcoords[j];i < m->numverts;i++, (int)in += m->texcoordstep[j]) - { - texcoord[j][i].t[0] = in[0]; - texcoord[j][i].t[1] = in[1]; - } - } - else - memcpy(&texcoord[j][0].t[0], m->texcoords[j], m->numverts * sizeof(buf_texcoord_t)); + qglColorPointer(4, GL_UNSIGNED_BYTE, sizeof(qbyte[4]), varray_bcolor);CHECKGLERROR } - #if 0 - for (;j < backendunits;j++) - memset(&texcoord[j][0].t[0], 0, m->numverts * sizeof(buf_texcoord_t)); - #endif + // LordHavoc: default to color array off + gl_state.colorarray = false; + GL_Color(1, 1, 1, 1); - if (currenttriangle >= max_batch) - R_Mesh_Render(); + GL_SetupTextureState(); } -void R_Mesh_Draw_NativeOnly(const rmeshinfo_t *m) +void GL_UseColorArray(void) { - // these are static because gcc runs out of virtual registers otherwise - static int i, j, overbright; - static float *in, scaler; - static buf_mesh_t *mesh; - static buf_vertex_t *vert; - static buf_fcolor_t *fcolor; - static buf_texcoord_t *texcoord[MAX_TEXTUREUNITS]; - - if (!backendactive) - Sys_Error("R_Mesh_Draw: called when backend is not active\n"); - - if (m->index == NULL - || !m->numtriangles - || m->vertex == NULL - || !m->numverts) - Host_Error("R_Mesh_Draw: no triangles or verts\n"); - - // ignore meaningless alpha meshs - if (!m->depthwrite && m->blendfunc1 == GL_SRC_ALPHA && (m->blendfunc2 == GL_ONE || m->blendfunc2 == GL_ONE_MINUS_SRC_ALPHA)) + if (!gl_state.colorarray) { - if (m->color) - { - 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; - } - else if (m->ca < 0.01f) - return; + gl_state.colorarray = true; + qglEnableClientState(GL_COLOR_ARRAY);CHECKGLERROR } +} - scaler = 1; - if (m->blendfunc2 == GL_SRC_COLOR) - { - if (m->blendfunc1 == GL_DST_COLOR) // 2x modulate with framebuffer - scaler *= 0.5f; - } - else +void GL_Color(float cr, float cg, float cb, float ca) +{ + if (gl_state.colorarray) { - if (m->tex[0]) - { - overbright = gl_combine.integer; - if (overbright) - scaler *= 0.25f; - } - scaler *= overbrightscale; + gl_state.colorarray = false; + qglDisableClientState(GL_COLOR_ARRAY);CHECKGLERROR } + qglColor4f(cr, cg, cb, ca); +} - if (m->transparent) - { - if (currenttransmesh >= max_meshs || (currenttranstriangle + m->numtriangles) > max_meshs || (currenttransvertex + m->numverts) > max_verts) - { - if (!transranout) - { - Con_Printf("R_Mesh_Draw_NativeOnly: ran out of room for transparent meshs\n"); - transranout = true; - } - return; - } +// called at beginning of frame +void R_Mesh_Start(void) +{ + BACKENDACTIVECHECK - c_transmeshs++; - c_transtris += m->numtriangles; - vert = &buf_transvertex[currenttransvertex]; - fcolor = &buf_transfcolor[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++]; - mesh->firsttriangle = currenttranstriangle; - memcpy(&buf_transtri[currenttranstriangle].index[0], m->index, sizeof(int[3]) * m->numtriangles); - currenttranstriangle += m->numtriangles; - - mesh->firstvert = currenttransvertex; - mesh->lastvert = currenttransvertex + m->numverts - 1; - currenttransvertex += m->numverts; - } - else - { - if (m->numtriangles > max_meshs || m->numverts > max_verts) - { - Con_Printf("R_Mesh_Draw_NativeOnly: mesh too big for buffers\n"); - return; - } + CHECKGLERROR - if (currentmesh >= max_meshs || (currenttriangle + m->numtriangles) > max_batch || (currentvertex + m->numverts) > max_verts) - R_Mesh_Render(); + GL_Backend_CheckCvars(); + if (mesh_maxverts != gl_mesh_maxverts.integer) + GL_Backend_ResizeArrays(gl_mesh_maxverts.integer); - c_meshs++; - c_meshtris += m->numtriangles; - vert = &buf_vertex[currentvertex]; - fcolor = &buf_fcolor[currentvertex]; - for (i = 0;i < backendunits;i++) - texcoord[i] = &buf_texcoord[i][currentvertex]; + GL_Backend_ResetState(); +} - mesh = &buf_mesh[currentmesh++]; - // opaque meshs are rendered directly - mesh->firsttriangle = currenttriangle; - memcpy(&buf_tri[currenttriangle].index[0], m->index, sizeof(int[3]) * m->numtriangles); - currenttriangle += m->numtriangles; +int gl_backend_rebindtextures; - mesh->firstvert = currentvertex; - mesh->lastvert = currentvertex + m->numverts - 1; - currentvertex += m->numverts; +void GL_ConvertColorsFloatToByte(int numverts) +{ + int i, k, total; + // LordHavoc: to avoid problems with aliasing (treating memory as two + // different types - exactly what this is doing), these must be volatile + // (or a union) + volatile int *icolor; + volatile float *fcolor; + qbyte *bcolor; + + total = numverts * 4; + + // shift float to have 8bit fraction at base of number + fcolor = varray_color; + for (i = 0;i < total;) + { + fcolor[i ] += 32768.0f; + fcolor[i + 1] += 32768.0f; + fcolor[i + 2] += 32768.0f; + fcolor[i + 3] += 32768.0f; + i += 4; + } + + // then read as integer and kill float bits... + icolor = (int *)varray_color; + bcolor = varray_bcolor; + for (i = 0;i < total;) + { + k = icolor[i ] & 0x7FFFFF;if (k > 255) k = 255;bcolor[i ] = (qbyte) k; + k = icolor[i + 1] & 0x7FFFFF;if (k > 255) k = 255;bcolor[i + 1] = (qbyte) k; + k = icolor[i + 2] & 0x7FFFFF;if (k > 255) k = 255;bcolor[i + 2] = (qbyte) k; + k = icolor[i + 3] & 0x7FFFFF;if (k > 255) k = 255;bcolor[i + 3] = (qbyte) k; + i += 4; } +} - // 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++) +/* +void GL_TransformVertices(int numverts) +{ + int i; + float m[12], tempv[4], *v; + m[0] = backendmatrix.m[0][0]; + m[1] = backendmatrix.m[0][1]; + m[2] = backendmatrix.m[0][2]; + m[3] = backendmatrix.m[0][3]; + m[4] = backendmatrix.m[1][0]; + m[5] = backendmatrix.m[1][1]; + m[6] = backendmatrix.m[1][2]; + m[7] = backendmatrix.m[1][3]; + m[8] = backendmatrix.m[2][0]; + m[9] = backendmatrix.m[2][1]; + m[10] = backendmatrix.m[2][2]; + m[11] = backendmatrix.m[2][3]; + for (i = 0, v = varray_vertex;i < numverts;i++, v += 4) + { + VectorCopy(v, tempv); + v[0] = tempv[0] * m[0] + tempv[1] * m[1] + tempv[2] * m[2] + m[3]; + v[1] = tempv[0] * m[4] + tempv[1] * m[5] + tempv[2] * m[6] + m[7]; + v[2] = tempv[0] * m[8] + tempv[1] * m[9] + tempv[2] * m[10] + m[11]; + } +} +*/ + +void GL_DrawRangeElements(int firstvert, int endvert, int indexcount, int *index) +{ + int arraylocked = false; + c_meshs++; + c_meshelements += indexcount; + if (gl_supportslockarrays && gl_lockarrays.integer) { - 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; + qglLockArraysEXT(firstvert, endvert - firstvert); + CHECKGLERROR + arraylocked = true; } - if (overbright && j >= 0) - mesh->texturergbscale[j] = 4; - - if (m->vertexstep != sizeof(buf_vertex_t)) - Host_Error("R_Mesh_Draw_NativeOnly: unsupported vertexstep\n"); - if (m->colorstep != sizeof(buf_fcolor_t)) - Host_Error("R_Mesh_Draw_NativeOnly: unsupported colorstep\n"); - if (m->color == NULL) - Host_Error("R_Mesh_Draw_NativeOnly: must provide color array\n"); - for (j = 0;j < MAX_TEXTUREUNITS && m->tex[j];j++) + if (gl_mesh_drawrangeelements.integer && qglDrawRangeElements != NULL) + qglDrawRangeElements(GL_TRIANGLES, firstvert, endvert, indexcount, GL_UNSIGNED_INT, (GLuint *) index); + else + qglDrawElements(GL_TRIANGLES, indexcount, GL_UNSIGNED_INT, (GLuint *) index); + CHECKGLERROR + if (arraylocked) { - if (j >= backendunits) - Sys_Error("R_Mesh_Draw_NativeOnly: texture %i supplied when there are only %i texture units\n", j + 1, backendunits); - if (m->texcoordstep[j] != sizeof(buf_texcoord_t)) - Host_Error("R_Mesh_Draw_NativeOnly: unsupported texcoordstep\n"); + qglUnlockArraysEXT(); + CHECKGLERROR + arraylocked = false; } +} - memcpy(vert, m->vertex, m->numverts * sizeof(buf_vertex_t)); - for (j = 0;j < MAX_TEXTUREUNITS && m->tex[j];j++) - memcpy(&texcoord[j][0].t[0], m->texcoords[j], m->numverts * sizeof(buf_texcoord_t)); - #if 0 - for (;j < backendunits;j++) - memset(&texcoord[j][0].t[0], 0, m->numverts * sizeof(buf_texcoord_t)); - #endif - - memcpy(fcolor, m->color, m->numverts * sizeof(buf_fcolor_t)); - - // do this as a second step because memcpy preloaded the cache, which we can't easily do - if (scaler != 1) +// enlarges geometry buffers if they are too small +void _R_Mesh_ResizeCheck(int numverts) +{ + if (numverts > mesh_maxverts) { - for (i = 0;i < m->numverts;i++) - { - fcolor[i].c[0] *= scaler; - fcolor[i].c[1] *= scaler; - fcolor[i].c[2] *= scaler; - } + BACKENDACTIVECHECK + GL_Backend_ResizeArrays(numverts + 100); + GL_Backend_ResetState(); } - - if (currenttriangle >= max_batch) - R_Mesh_Render(); } -/* -void R_Mesh_Draw_GetBuffer(volatile rmeshinfo_t *m) +// renders the mesh +void R_Mesh_Draw(int numverts, int numtriangles, int *elements) { - // these are static because gcc runs out of virtual registers otherwise - static int i, j, *index, overbright; - static float *in, scaler; + BACKENDACTIVECHECK - if (!backendactive) - Sys_Error("R_Mesh_Draw: called when backend is not active\n"); + CHECKGLERROR - if (!m->numtriangles - || !m->numverts) - Host_Error("R_Mesh_Draw: no triangles or verts\n"); + if (gl_state.colorarray && !gl_mesh_floatcolors.integer) + GL_ConvertColorsFloatToByte(numverts); + //GL_TransformVertices(numverts); + if (!r_render.integer) + return; + GL_DrawRangeElements(0, numverts, numtriangles * 3, elements); +} - scaler = 1; - if (m->blendfunc2 == GL_SRC_COLOR) - { - if (m->blendfunc1 == GL_DST_COLOR) // 2x modulate with framebuffer - scaler *= 0.5f; - } - else - { - if (m->tex[0]) - { - overbright = gl_combine.integer; - if (overbright) - scaler *= 0.25f; - } - scaler *= overbrightscale; - } +// restores backend state, used when done with 3D rendering +void R_Mesh_Finish(void) +{ + int i; + BACKENDACTIVECHECK - if (m->transparent) + if (backendunits > 1) { - if (currenttransmesh >= max_meshs || (currenttranstriangle + m->numtriangles) > max_meshs || (currenttransvertex + m->numverts) > max_verts) + for (i = backendunits - 1;i >= 0;i--) { - if (!transranout) + qglActiveTexture(GL_TEXTURE0_ARB + i);CHECKGLERROR + qglTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);CHECKGLERROR + if (gl_combine.integer) { - Con_Printf("R_Mesh_Draw: ran out of room for transparent meshs\n"); - transranout = true; + qglTexEnvi(GL_TEXTURE_ENV, GL_RGB_SCALE_ARB, 1);CHECKGLERROR } - return; - } + if (i > 0) + { + qglDisable(GL_TEXTURE_2D);CHECKGLERROR + } + else + { + qglEnable(GL_TEXTURE_2D);CHECKGLERROR + } + qglBindTexture(GL_TEXTURE_2D, 0);CHECKGLERROR - c_transmeshs++; - c_transtris += m->numtriangles; - m->vertex = &buf_transvertex[currenttransvertex].v[0]; - m->color = &buf_transfcolor[currenttransvertex].c[0]; - for (i = 0;i < backendunits;i++) - m->texcoords[i] = &buf_transtexcoord[i][currenttransvertex].tc[0]; - - // transmesh is only for storage of transparent meshs until they - // are inserted into the main mesh array - mesh = &buf_transmesh[currenttransmesh++]; - mesh->firsttriangle = currenttranstriangle; - memcpy(&buf_transtri[currenttranstriangle].index[0], m->index, sizeof(int[3]) * m->numtriangles); - currenttranstriangle += m->numtriangles; - - mesh->firstvert = currenttransvertex; - mesh->lastvert = currenttransvertex + m->numverts - 1; - currenttransvertex += m->numverts; + qglClientActiveTexture(GL_TEXTURE0_ARB + i);CHECKGLERROR + qglDisableClientState(GL_TEXTURE_COORD_ARRAY);CHECKGLERROR + } } else { - if (m->numtriangles > max_meshs || m->numverts > max_verts) - { - Con_Printf("R_Mesh_Draw_NativeOnly: mesh too big for buffers\n"); - return; - } - - 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]; - fcolor = &buf_fcolor[currentvertex]; - for (i = 0;i < backendunits;i++) - texcoord[i] = &buf_texcoord[i][currentvertex]; - - // opaque meshs are rendered directly - mesh = &buf_mesh[currentmesh++]; - mesh->firsttriangle = currenttriangle; - memcpy(&buf_tri[currenttriangle].index[0], m->index, sizeof(int[3]) * m->numtriangles); - currenttriangle += m->numtriangles; - - mesh->firstvert = currentvertex; - mesh->lastvert = currentvertex + m->numverts - 1; - currentvertex += m->numverts; + qglTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);CHECKGLERROR + qglEnable(GL_TEXTURE_2D);CHECKGLERROR + qglDisableClientState(GL_TEXTURE_COORD_ARRAY);CHECKGLERROR } + qglDisableClientState(GL_COLOR_ARRAY);CHECKGLERROR + qglDisableClientState(GL_VERTEX_ARRAY);CHECKGLERROR - // 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; - } - if (overbright && j >= 0) - mesh->texturergbscale[j] = 4; - - if (m->vertexstep != sizeof(buf_vertex_t)) - Host_Error("R_Mesh_Draw_NativeOnly: unsupported vertexstep\n"); - if (m->colorstep != sizeof(buf_fcolor_t)) - Host_Error("R_Mesh_Draw_NativeOnly: unsupported colorstep\n"); - if (m->color == NULL) - Host_Error("R_Mesh_Draw_NativeOnly: must provide color array\n"); - for (j = 0;j < MAX_TEXTUREUNITS && m->tex[j];j++) + qglDisable(GL_BLEND);CHECKGLERROR + qglEnable(GL_DEPTH_TEST);CHECKGLERROR + qglDepthMask(GL_TRUE);CHECKGLERROR + qglBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);CHECKGLERROR +} + +void R_Mesh_Matrix(const matrix4x4_t *matrix) +{ + if (memcmp(matrix, &backend_modelmatrix, sizeof(matrix4x4_t))) { - if (j >= backendunits) - Sys_Error("R_Mesh_Draw_NativeOnly: texture %i supplied when there are only %i texture units\n", j + 1, backendunits); - if (m->texcoordstep[j] != sizeof(buf_texcoord_t)) - Host_Error("R_Mesh_Draw_NativeOnly: unsupported texcoordstep\n"); + backend_modelmatrix = *matrix; + Matrix4x4_Concat(&backend_modelviewmatrix, &backend_viewmatrix, matrix); + Matrix4x4_Transpose(&backend_glmodelviewmatrix, &backend_modelviewmatrix); + qglLoadMatrixf(&backend_glmodelviewmatrix.m[0][0]); } +} - memcpy(vert, m->vertex, m->numverts * sizeof(buf_vertex_t)); - for (j = 0;j < MAX_TEXTUREUNITS && m->tex[j];j++) - memcpy(&texcoord[j][0].t[0], m->texcoords[j], m->numverts * sizeof(buf_texcoord_t)); - #if 0 - for (;j < backendunits;j++) - memset(&texcoord[j][0].t[0], 0, m->numverts * sizeof(buf_texcoord_t)); - #endif - - memcpy(fcolor, m->color, m->numverts * sizeof(buf_fcolor_t)); +// sets up the requested state +void R_Mesh_MainState(const rmeshstate_t *m) +{ + BACKENDACTIVECHECK - // do this as a second step because memcpy preloaded the cache, which we can't easily do - if (scaler != 1) + if (gl_state.blendfunc1 != m->blendfunc1 || gl_state.blendfunc2 != m->blendfunc2) { - for (i = 0;i < m->numverts;i++) + qglBlendFunc(gl_state.blendfunc1 = m->blendfunc1, gl_state.blendfunc2 = m->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 { - fcolor[i].c[0] *= scaler; - fcolor[i].c[1] *= scaler; - fcolor[i].c[2] *= scaler; + if (!gl_state.blend) + { + gl_state.blend = 1; + qglEnable(GL_BLEND);CHECKGLERROR + } } } - - if (currenttriangle >= max_batch) - R_Mesh_Render(); -} -*/ - -void R_Mesh_DrawPolygon(rmeshinfo_t *m, int numverts) -{ - m->index = polyindexarray; - m->numverts = numverts; - m->numtriangles = numverts - 2; - if (m->numtriangles < 1) + if (gl_state.depthdisable != m->depthdisable) { - Con_Printf("R_Mesh_DrawPolygon: invalid vertex count\n"); - return; + gl_state.depthdisable = m->depthdisable; + if (gl_state.depthdisable) + qglDisable(GL_DEPTH_TEST); + else + qglEnable(GL_DEPTH_TEST); } - if (m->numtriangles >= 256) + if (gl_state.depthmask != (m->blendfunc2 == GL_ZERO || m->depthwrite)) { - Con_Printf("R_Mesh_DrawPolygon: only up to 256 triangles (258 verts) supported\n"); - return; + qglDepthMask(gl_state.depthmask = (m->blendfunc2 == GL_ZERO || m->depthwrite));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_TextureState(const rmeshstate_t *m) { - // these are static because gcc runs out of virtual registers otherwise - static int i, *index, overbright; - static float scaler; - static float cr, cg, cb, ca; - static buf_mesh_t *mesh; - static buf_vertex_t *vert; - static buf_fcolor_t *fcolor; - static buf_texcoord_t *texcoord; - static buf_transtri_t *tri; - - if (!backendactive) - Sys_Error("R_Mesh_Draw: called when backend is not active\n"); - - scaler = 1; - if (m->tex[0]) + int i; + int texturergbscale[MAX_TEXTUREUNITS]; + + BACKENDACTIVECHECK + + if (gl_backend_rebindtextures) + { + gl_backend_rebindtextures = false; + GL_SetupTextureState(); + } + + for (i = 0;i < backendunits;i++) { - overbright = gl_combine.integer; - if (overbright) - scaler *= 0.25f; + if (m->texrgbscale[i]) + texturergbscale[i] = m->texrgbscale[i]; + else + texturergbscale[i] = 1; } - scaler *= overbrightscale; - if (m->transparent) + if (backendunits > 1) { - if (currenttransmesh >= max_meshs || (currenttranstriangle + 2) > max_meshs || (currenttransvertex + 4) > max_verts) + for (i = 0;i < backendunits;i++) { - if (!transranout) + if (gl_state.texture[i] != m->tex[i]) + { + if (gl_state.unit != i) + { + qglActiveTexture(GL_TEXTURE0_ARB + (gl_state.unit = i));CHECKGLERROR + } + if (gl_state.texture[i] == 0) + { + qglEnable(GL_TEXTURE_2D);CHECKGLERROR + if (gl_state.clientunit != i) + { + qglClientActiveTexture(GL_TEXTURE0_ARB + (gl_state.clientunit = i));CHECKGLERROR + } + qglEnableClientState(GL_TEXTURE_COORD_ARRAY);CHECKGLERROR + } + qglBindTexture(GL_TEXTURE_2D, (gl_state.texture[i] = m->tex[i]));CHECKGLERROR + if (gl_state.texture[i] == 0) + { + qglDisable(GL_TEXTURE_2D);CHECKGLERROR + if (gl_state.clientunit != i) + { + qglClientActiveTexture(GL_TEXTURE0_ARB + (gl_state.clientunit = i));CHECKGLERROR + } + qglDisableClientState(GL_TEXTURE_COORD_ARRAY);CHECKGLERROR + } + } + if (gl_state.texturergbscale[i] != texturergbscale[i]) { - Con_Printf("R_Mesh_Draw: ran out of room for transparent meshs\n"); - transranout = true; + if (gl_state.unit != i) + { + qglActiveTexture(GL_TEXTURE0_ARB + (gl_state.unit = i));CHECKGLERROR + } + qglTexEnvi(GL_TEXTURE_ENV, GL_RGB_SCALE_ARB, (gl_state.texturergbscale[i] = texturergbscale[i]));CHECKGLERROR } - return; - } - - c_transmeshs++; - c_transtris += 2; - vert = &buf_transvertex[currenttransvertex]; - fcolor = &buf_transfcolor[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->firsttriangle = currenttranstriangle; - 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; - - index = &buf_transtri[currenttranstriangle].index[0]; - mesh->firstvert = currenttransvertex; - mesh->lastvert = currenttransvertex + 3; - currenttranstriangle += 2; - currenttransvertex += 4; } else { - if (2 > max_meshs || 4 > max_verts) - { - Con_Printf("R_Mesh_Draw: mesh too big for buffers\n"); - return; - } - - if (currentmesh >= max_meshs || (currenttriangle + 2) > max_batch || (currentvertex + 4) > max_verts) - R_Mesh_Render(); - - c_meshs++; - c_meshtris += 2; - vert = &buf_vertex[currentvertex]; - fcolor = &buf_fcolor[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++) + if (gl_state.texture[0] != m->tex[0]) { - mesh->textures[i] = 0; - mesh->texturergbscale[i] = 1; + if (gl_state.texture[0] == 0) + { + qglEnable(GL_TEXTURE_2D);CHECKGLERROR + qglEnableClientState(GL_TEXTURE_COORD_ARRAY);CHECKGLERROR + } + qglBindTexture(GL_TEXTURE_2D, (gl_state.texture[0] = m->tex[0]));CHECKGLERROR + if (gl_state.texture[0] == 0) + { + qglDisable(GL_TEXTURE_2D);CHECKGLERROR + qglDisableClientState(GL_TEXTURE_COORD_ARRAY);CHECKGLERROR + } } - - // opaque meshs are rendered directly - index = &buf_tri[currenttriangle].index[0]; - mesh->firstvert = currentvertex; - mesh->lastvert = currentvertex + 3; - currenttriangle += 2; - currentvertex += 4; } +} - index[0] = 0; - index[1] = 1; - index[2] = 2; - index[3] = 0; - index[4] = 2; - index[5] = 3; - - // buf_vertex_t must match the size of the decal vertex array (or vice versa) - memcpy(vert, m->vertex, 4 * sizeof(buf_vertex_t)); - - 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; - - // 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)); - - if (currenttriangle >= max_batch) - R_Mesh_Render(); +void R_Mesh_State(const rmeshstate_t *m) +{ + R_Mesh_MainState(m); + R_Mesh_TextureState(m); } -*/ /* ============================================================================== @@ -1580,16 +738,17 @@ void R_Mesh_DrawDecal(const rmeshinfo_t *m) ============================================================================== */ -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) +qboolean SCR_ScreenShot(char *filename, int x, int y, int width, int height) { + qboolean ret; int i; - byte *buffer; + qbyte *buffer; + + if (!r_render.integer) + return false; buffer = Mem_Alloc(tempmempool, width*height*3); - glReadPixels (x, y, width, height, GL_RGB, GL_UNSIGNED_BYTE, buffer); + qglReadPixels (x, y, width, height, GL_RGB, GL_UNSIGNED_BYTE, buffer); CHECKGLERROR // LordHavoc: compensate for v_overbrightbits when using hardware gamma @@ -1597,114 +756,10 @@ void SCR_ScreenShot(char *filename, int x, int y, int width, int height) for (i = 0;i < width * height * 3;i++) buffer[i] <<= v_overbrightbits.integer; - Image_WriteTGARGB_preflipped(filename, width, height, buffer); + ret = Image_WriteTGARGB_preflipped(filename, width, height, buffer); Mem_Free(buffer); -} - -/* -================== -SCR_ScreenShot_f -================== -*/ -void SCR_ScreenShot_f (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; - } - - 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]; - - if (Cmd_Argc() != 3) - { - Con_Printf ("envmap : 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; - } - - if (!r_render.integer) - return; - - strcpy(basename, Cmd_Argv(1)); - size = atoi(Cmd_Argv(2)); - if (size != 128 && size != 256 && size != 512 && size != 1024) - { - Con_Printf("envmap: size must be one of 128, 256, 512, or 1024\n"); - return; - } - if (size > vid.realwidth || size > vid.realheight) - { - Con_Printf("envmap: your resolution is not big enough to render that size\n"); - return; - } - - 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++) - { - 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); - } - - envmap = false; + return ret; } //============================================================================= @@ -1713,15 +768,19 @@ void R_ClearScreen(void) { if (r_render.integer) { - 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 + // clear to black + qglClearColor(0,0,0,0);CHECKGLERROR + // clear the screen + qglClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);CHECKGLERROR + // set dithering mode if (gl_dither.integer) - glEnable(GL_DITHER); + { + qglEnable(GL_DITHER);CHECKGLERROR + } else - glDisable(GL_DITHER); - CHECKGLERROR + { + qglDisable(GL_DITHER);CHECKGLERROR + } } } @@ -1735,25 +794,25 @@ text to the screen. */ void SCR_UpdateScreen (void) { - //Mem_CheckSentinelsGlobal(); - //R_TimeReport("memtest"); - - glFinish (); - CHECKGLERROR - VID_Finish (); R_TimeReport("finish"); - if (gl_combine.integer && !gl_combine_extension) - Cvar_SetValue("gl_combine", 0); + if (r_textureunits.integer > gl_textureunits) + Cvar_SetValueQuick(&r_textureunits, gl_textureunits); + if (r_textureunits.integer < 1) + Cvar_SetValueQuick(&r_textureunits, 1); + + if (gl_combine.integer && (!gl_combine_extension || r_textureunits.integer < 2)) + Cvar_SetValueQuick(&gl_combine, 0); - lightscalebit = v_overbrightbits.integer; - if (gl_combine.integer && r_multitexture.integer) - lightscalebit += 2; + // lighting scale + r_colorscale = 1.0f / (float) (1 << v_overbrightbits.integer); - lightscale = 1.0f / (float) (1 << lightscalebit); - overbrightscale = 1.0f / (float) (1 << v_overbrightbits.integer); + // lightmaps only + r_lightmapscalebit = v_overbrightbits.integer; + if (gl_combine.integer && r_textureunits.integer > 1) + r_lightmapscalebit += 2; R_TimeReport("setup"); @@ -1761,9 +820,14 @@ void SCR_UpdateScreen (void) R_TimeReport("clear"); - if (scr_conlines < vid.conheight) + if (scr_conlines < vid.conheight && cls.signon == SIGNONS) R_RenderView(); // draw 2D stuff R_DrawQueue(); + + // tell driver to commit it's partially full geometry queue to the rendering queue + // (this doesn't wait for the commands themselves to complete) + qglFlush(); } +