X-Git-Url: http://de.git.xonotic.org/?a=blobdiff_plain;f=gl_backend.c;h=fa0aba57999ad42dfa2d22200b134a8cb3826a27;hb=aed8b84afc34596c6ec9e4dd35ada467539fbd8c;hp=70abc13c36c9bbcfd7bf29fa82cdbe692c43dffd;hpb=0e5fb63a759093acf863fc2cf0fca0284a3a5768;p=xonotic%2Fdarkplaces.git diff --git a/gl_backend.c b/gl_backend.c index 70abc13c..fa0aba57 100644 --- a/gl_backend.c +++ b/gl_backend.c @@ -5,6 +5,7 @@ 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_mesh_prefer_short_elements = {0, "gl_mesh_prefer_short_elements", "1", "use GL_UNSIGNED_SHORT element arrays instead of GL_UNSIGNED_INT"}; 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"}; @@ -14,7 +15,7 @@ cvar_t gl_polyblend = {CVAR_SAVE, "gl_polyblend", "1", "tints view while underwa cvar_t gl_dither = {CVAR_SAVE, "gl_dither", "1", "enables OpenGL dithering (16bit looks bad with this off)"}; cvar_t gl_lockarrays = {0, "gl_lockarrays", "0", "enables use of glLockArraysEXT, may cause glitches with some broken drivers, and may be slower than normal"}; cvar_t gl_lockarrays_minimumvertices = {0, "gl_lockarrays_minimumvertices", "1", "minimum number of vertices required for use of glLockArraysEXT, setting this too low may reduce performance"}; -cvar_t gl_vbo = {CVAR_SAVE, "gl_vbo", "1", "make use of GL_ARB_vertex_buffer_object extension to store static geometry in video memory for faster rendering"}; +cvar_t gl_vbo = {CVAR_SAVE, "gl_vbo", "3", "make use of GL_ARB_vertex_buffer_object extension to store static geometry in video memory for faster rendering, 0 disables VBO allocation or use, 1 enables VBOs for vertex and triangle data, 2 only for vertex data, 3 for vertex data and triangle data of simple meshes (ones with only one surface)"}; cvar_t v_flipped = {0, "v_flipped", "0", "mirror the screen (poor man's left handed mode)"}; qboolean v_flipped_state = false; @@ -136,8 +137,8 @@ for (y = 0;y < rows - 1;y++) } */ -int polygonelements[(POLYGONELEMENTS_MAXPOINTS-2)*3]; -int quadelements[QUADELEMENTS_MAXQUADS*6]; +unsigned short polygonelements[(POLYGONELEMENTS_MAXPOINTS-2)*3]; +unsigned short quadelements[QUADELEMENTS_MAXQUADS*6]; void GL_Backend_AllocArrays(void) { @@ -165,7 +166,6 @@ memexpandablearray_t gl_bufferobjectinfoarray; static void gl_backend_start(void) { - Con_Print("OpenGL Backend starting...\n"); CHECKGLERROR if (qglDrawRangeElements != NULL) @@ -175,7 +175,7 @@ static void gl_backend_start(void) CHECKGLERROR qglGetIntegerv(GL_MAX_ELEMENTS_INDICES, &gl_maxdrawrangeelementsindices); CHECKGLERROR - Con_Printf("glDrawRangeElements detected (max vertices %i, max indices %i)\n", gl_maxdrawrangeelementsvertices, gl_maxdrawrangeelementsindices); + Con_DPrintf("GL_MAX_ELEMENTS_VERTICES = %i\nGL_MAX_ELEMENTS_INDICES = %i\n", gl_maxdrawrangeelementsvertices, gl_maxdrawrangeelementsindices); } backendunits = bound(1, gl_textureunits, MAX_TEXTUREUNITS); @@ -188,20 +188,18 @@ static void gl_backend_start(void) 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); + Con_DPrintf("GLSL shader support detected: texture units = %i texenv, %i image, %i array\n", backendunits, backendimageunits, backendarrayunits); backendimageunits = bound(1, backendimageunits, MAX_TEXTUREUNITS); backendarrayunits = bound(1, backendarrayunits, MAX_TEXTUREUNITS); } - else if (backendunits > 1) - Con_Printf("multitexture detected: texture units = %i\n", backendunits); else - Con_Printf("singletexture\n"); + Con_DPrintf("GL_MAX_TEXTUREUNITS = %i\n", backendunits); GL_Backend_AllocArrays(); Mem_ExpandableArray_NewArray(&gl_bufferobjectinfoarray, r_main_mempool, sizeof(gl_bufferobjectinfo_t), 128); - Con_Printf("OpenGL backend started.\n"); + Con_DPrintf("OpenGL backend started.\n"); CHECKGLERROR @@ -215,7 +213,7 @@ static void gl_backend_shutdown(void) backendarrayunits = 0; backendactive = false; - Con_Print("OpenGL Backend shutting down\n"); + Con_DPrint("OpenGL Backend shutting down\n"); Mem_ExpandableArray_FreeArray(&gl_bufferobjectinfoarray); @@ -264,8 +262,9 @@ void gl_backend_init(void) Cvar_RegisterVariable(&gl_mesh_drawrangeelements); Cvar_RegisterVariable(&gl_mesh_testarrayelement); Cvar_RegisterVariable(&gl_mesh_testmanualfeeding); + Cvar_RegisterVariable(&gl_mesh_prefer_short_elements); - Cmd_AddCommand("gl_vbostats", GL_VBOStats_f, "prints a list of all buffer objects (vertex data and triangle elements) and total video memory used by them\n"); + Cmd_AddCommand("gl_vbostats", GL_VBOStats_f, "prints a list of all buffer objects (vertex data and triangle elements) and total video memory used by them"); R_RegisterModule("GL_Backend", gl_backend_start, gl_backend_shutdown, gl_backend_newmap); } @@ -306,6 +305,29 @@ void GL_SetupView_Orientation_FromEntity(const matrix4x4_t *matrix) R_Mesh_Matrix(&tempmatrix); } +static void GL_BuildFrustum(double m[16], double left, double right, double bottom, double top, double nearVal, double farVal) +{ + m[0] = 2 * nearVal / (right - left); + m[1] = 0; + m[2] = 0; + m[3] = 0; + + m[4] = 0; + m[5] = 2 * nearVal / (top - bottom); + m[6] = 0; + m[7] = 0; + + m[8] = (right + left) / (right - left); + m[9] = (top + bottom) / (top - bottom); + m[10] = - (farVal + nearVal) / (farVal - nearVal); + m[11] = -1; + + m[12] = 0; + m[13] = 0; + m[14] = - 2 * farVal * nearVal / (farVal - nearVal); + m[15] = 0; +} + void GL_SetupView_Mode_Perspective (double frustumx, double frustumy, double zNear, double zFar) { double m[16]; @@ -313,10 +335,18 @@ void GL_SetupView_Mode_Perspective (double frustumx, double frustumy, double zNe // set up viewpoint CHECKGLERROR qglMatrixMode(GL_PROJECTION);CHECKGLERROR - qglLoadIdentity();CHECKGLERROR // set view pyramid +#if 1 + // avoid glGetDoublev whenever possible, it may stall the render pipeline + // in the tested cases (nvidia) no measurable fps difference, but it sure + // makes a difference over a network line with GLX + GL_BuildFrustum(m, -frustumx * zNear, frustumx * zNear, -frustumy * zNear, frustumy * zNear, zNear, zFar); + qglLoadMatrixd(m);CHECKGLERROR +#else + qglLoadIdentity();CHECKGLERROR qglFrustum(-frustumx * zNear, frustumx * zNear, -frustumy * zNear, frustumy * zNear, zNear, zFar);CHECKGLERROR qglGetDoublev(GL_PROJECTION_MATRIX, m);CHECKGLERROR +#endif Matrix4x4_FromArrayDoubleGL(&backend_projectmatrix, m); qglMatrixMode(GL_MODELVIEW);CHECKGLERROR GL_SetupView_Orientation_Identity(); @@ -356,6 +386,29 @@ void GL_SetupView_Mode_PerspectiveInfiniteFarClip (double frustumx, double frust Matrix4x4_FromArrayDoubleGL(&backend_projectmatrix, m); } +static void GL_BuildOrtho(double m[16], double left, double right, double bottom, double top, double zNear, double zFar) +{ + m[0] = 2/(right - left); + m[1] = 0; + m[2] = 0; + m[3] = 0; + + m[4] = 0; + m[5] = 2/(top - bottom); + m[6] = 0; + m[7] = 0; + + m[8] = 0; + m[9] = 0; + m[10] = -2/(zFar - zNear); + m[11] = 0; + + m[12] = - (right + left)/(right - left); + m[13] = - (top + bottom)/(top - bottom); + m[14] = - (zFar + zNear)/(zFar - zNear); + m[15] = 1; +} + void GL_SetupView_Mode_Ortho (double x1, double y1, double x2, double y2, double zNear, double zFar) { double m[16]; @@ -363,9 +416,17 @@ void GL_SetupView_Mode_Ortho (double x1, double y1, double x2, double y2, double // set up viewpoint CHECKGLERROR qglMatrixMode(GL_PROJECTION);CHECKGLERROR +#if 1 + // avoid glGetDoublev whenever possible, it may stall the render pipeline + // in the tested cases (nvidia) no measurable fps difference, but it sure + // makes a difference over a network line with GLX + GL_BuildOrtho(m, x1, x2, y2, y1, zNear, zFar); + qglLoadMatrixd(m);CHECKGLERROR +#else qglLoadIdentity();CHECKGLERROR qglOrtho(x1, x2, y2, y1, zNear, zFar);CHECKGLERROR qglGetDoublev(GL_PROJECTION_MATRIX, m);CHECKGLERROR +#endif Matrix4x4_FromArrayDoubleGL(&backend_projectmatrix, m); qglMatrixMode(GL_MODELVIEW);CHECKGLERROR GL_SetupView_Orientation_Identity(); @@ -1024,16 +1085,39 @@ void GL_Backend_RenumberElements(int *out, int count, const int *in, int offset) // renders triangles using vertices from the active arrays int paranoidblah = 0; -void R_Mesh_Draw(int firstvertex, int numvertices, int numtriangles, const int *elements, int bufferobject, size_t bufferoffset) +void R_Mesh_Draw(int firstvertex, int numvertices, int firsttriangle, int numtriangles, const int *element3i, const unsigned short *element3s, int bufferobject3i, int bufferobject3s) { unsigned int numelements = numtriangles * 3; if (numvertices < 3 || numtriangles < 1) { - Con_Printf("R_Mesh_Draw(%d, %d, %d, %8p, %i, %p);\n", firstvertex, numvertices, numtriangles, elements, bufferobject, (void *)bufferoffset); + Con_Printf("R_Mesh_Draw(%d, %d, %d, %d, %8p, %8p, %i, %i);\n", firstvertex, numvertices, firsttriangle, numtriangles, element3i, element3s, bufferobject3i, bufferobject3s); return; } - if (gl_vbo.integer != 1) - bufferobject = 0; + if (!gl_mesh_prefer_short_elements.integer) + { + if (element3i) + element3s = NULL; + if (bufferobject3i) + bufferobject3s = 0; + } + if (element3i) + element3i += firsttriangle * 3; + if (element3s) + element3s += firsttriangle * 3; + switch (gl_vbo.integer) + { + default: + case 0: + case 2: + bufferobject3i = bufferobject3s = 0; + break; + case 1: + break; + case 3: + if (firsttriangle) + bufferobject3i = bufferobject3s = 0; + break; + } CHECKGLERROR r_refdef.stats.meshes++; r_refdef.stats.meshes_elements += numelements; @@ -1074,12 +1158,26 @@ void R_Mesh_Draw(int firstvertex, int numvertices, int numtriangles, const int * paranoidblah += *p; } } - for (i = 0;i < (unsigned int) numtriangles * 3;i++) + if (element3i) { - if (elements[i] < firstvertex || elements[i] >= firstvertex + numvertices) + for (i = 0;i < (unsigned int) numtriangles * 3;i++) { - Con_Printf("R_Mesh_Draw: invalid vertex index %i (outside range %i - %i) in elements list\n", elements[i], firstvertex, firstvertex + numvertices); - return; + if (element3i[i] < firstvertex || element3i[i] >= firstvertex + numvertices) + { + Con_Printf("R_Mesh_Draw: invalid vertex index %i (outside range %i - %i) in element3i array\n", element3i[i], firstvertex, firstvertex + numvertices); + return; + } + } + } + if (element3s) + { + for (i = 0;i < (unsigned int) numtriangles * 3;i++) + { + if (element3s[i] < firstvertex || element3s[i] >= firstvertex + numvertices) + { + Con_Printf("R_Mesh_Draw: invalid vertex index %i (outside range %i - %i) in element3s array\n", element3s[i], firstvertex, firstvertex + numvertices); + return; + } } } CHECKGLERROR @@ -1089,11 +1187,12 @@ void R_Mesh_Draw(int firstvertex, int numvertices, int numtriangles, const int * CHECKGLERROR if (gl_mesh_testmanualfeeding.integer) { - unsigned int i, j; + unsigned int i, j, element; const GLfloat *p; qglBegin(GL_TRIANGLES); for (i = 0;i < (unsigned int) numtriangles * 3;i++) { + element = element3i ? element3i[i] : element3s[i]; for (j = 0;j < backendarrayunits;j++) { if (gl_state.units[j].pointer_texcoord && gl_state.units[j].arrayenabled) @@ -1102,22 +1201,22 @@ void R_Mesh_Draw(int firstvertex, int numvertices, int numtriangles, const int * { if (gl_state.units[j].arraycomponents == 4) { - p = ((const GLfloat *)(gl_state.units[j].pointer_texcoord)) + elements[i] * 4; + p = ((const GLfloat *)(gl_state.units[j].pointer_texcoord)) + element * 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; + p = ((const GLfloat *)(gl_state.units[j].pointer_texcoord)) + element * 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; + p = ((const GLfloat *)(gl_state.units[j].pointer_texcoord)) + element * 2; qglMultiTexCoord2f(GL_TEXTURE0_ARB + j, p[0], p[1]); } else { - p = ((const GLfloat *)(gl_state.units[j].pointer_texcoord)) + elements[i] * 1; + p = ((const GLfloat *)(gl_state.units[j].pointer_texcoord)) + element * 1; qglMultiTexCoord1f(GL_TEXTURE0_ARB + j, p[0]); } } @@ -1125,22 +1224,22 @@ void R_Mesh_Draw(int firstvertex, int numvertices, int numtriangles, const int * { if (gl_state.units[j].arraycomponents == 4) { - p = ((const GLfloat *)(gl_state.units[j].pointer_texcoord)) + elements[i] * 4; + p = ((const GLfloat *)(gl_state.units[j].pointer_texcoord)) + element * 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; + p = ((const GLfloat *)(gl_state.units[j].pointer_texcoord)) + element * 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; + p = ((const GLfloat *)(gl_state.units[j].pointer_texcoord)) + element * 2; qglTexCoord2f(p[0], p[1]); } else { - p = ((const GLfloat *)(gl_state.units[j].pointer_texcoord)) + elements[i] * 1; + p = ((const GLfloat *)(gl_state.units[j].pointer_texcoord)) + element * 1; qglTexCoord1f(p[0]); } } @@ -1148,10 +1247,10 @@ void R_Mesh_Draw(int firstvertex, int numvertices, int numtriangles, const int * } if (gl_state.pointer_color && gl_state.pointer_color_enabled) { - p = ((const GLfloat *)(gl_state.pointer_color)) + elements[i] * 4; + p = ((const GLfloat *)(gl_state.pointer_color)) + element * 4; qglColor4f(p[0], p[1], p[2], p[3]); } - p = ((const GLfloat *)(gl_state.pointer_vertex)) + elements[i] * 3; + p = ((const GLfloat *)(gl_state.pointer_vertex)) + element * 3; qglVertex3f(p[0], p[1], p[2]); } qglEnd(); @@ -1161,24 +1260,74 @@ void R_Mesh_Draw(int firstvertex, int numvertices, int numtriangles, const int * { int i; qglBegin(GL_TRIANGLES); - for (i = 0;i < numtriangles * 3;i++) + if (element3i) { - qglArrayElement(elements[i]); + for (i = 0;i < numtriangles * 3;i++) + qglArrayElement(element3i[i]); + } + else if (element3s) + { + for (i = 0;i < numtriangles * 3;i++) + qglArrayElement(element3s[i]); } qglEnd(); CHECKGLERROR } - else if (gl_mesh_drawrangeelements.integer && qglDrawRangeElements != NULL) + else if (bufferobject3s) { - GL_BindEBO(bufferobject); - qglDrawRangeElements(GL_TRIANGLES, firstvertex, firstvertex + numvertices, numelements, GL_UNSIGNED_INT, bufferobject ? (void *)bufferoffset : elements); - CHECKGLERROR + GL_BindEBO(bufferobject3s); + if (gl_mesh_drawrangeelements.integer && qglDrawRangeElements != NULL) + { + qglDrawRangeElements(GL_TRIANGLES, firstvertex, firstvertex + numvertices, numelements, GL_UNSIGNED_SHORT, (void *)(firsttriangle * sizeof(unsigned short[3]))); + CHECKGLERROR + } + else + { + qglDrawElements(GL_TRIANGLES, numelements, GL_UNSIGNED_SHORT, (void *)(firsttriangle * sizeof(unsigned short[3]))); + CHECKGLERROR + } } - else + else if (bufferobject3i) { - GL_BindEBO(bufferobject); - qglDrawElements(GL_TRIANGLES, numelements, GL_UNSIGNED_INT, bufferobject ? (void *)bufferoffset : elements); - CHECKGLERROR + GL_BindEBO(bufferobject3i); + if (gl_mesh_drawrangeelements.integer && qglDrawRangeElements != NULL) + { + qglDrawRangeElements(GL_TRIANGLES, firstvertex, firstvertex + numvertices, numelements, GL_UNSIGNED_INT, (void *)(firsttriangle * sizeof(unsigned int[3]))); + CHECKGLERROR + } + else + { + qglDrawElements(GL_TRIANGLES, numelements, GL_UNSIGNED_INT, (void *)(firsttriangle * sizeof(unsigned int[3]))); + CHECKGLERROR + } + } + else if (element3s) + { + GL_BindEBO(0); + if (gl_mesh_drawrangeelements.integer && qglDrawRangeElements != NULL) + { + qglDrawRangeElements(GL_TRIANGLES, firstvertex, firstvertex + numvertices, numelements, GL_UNSIGNED_SHORT, element3s); + CHECKGLERROR + } + else + { + qglDrawElements(GL_TRIANGLES, numelements, GL_UNSIGNED_SHORT, element3s); + CHECKGLERROR + } + } + else if (element3i) + { + GL_BindEBO(0); + if (gl_mesh_drawrangeelements.integer && qglDrawRangeElements != NULL) + { + qglDrawRangeElements(GL_TRIANGLES, firstvertex, firstvertex + numvertices, numelements, GL_UNSIGNED_INT, element3i); + CHECKGLERROR + } + else + { + qglDrawElements(GL_TRIANGLES, numelements, GL_UNSIGNED_INT, element3i); + CHECKGLERROR + } } } } @@ -1815,6 +1964,8 @@ void R_Mesh_TexBindCubeMap(unsigned int unitnum, int texnum) } } +static const double gl_identitymatrix[16] = {1,0,0,0, 0,1,0,0, 0,0,1,0, 0,0,0,1}; + void R_Mesh_TexMatrix(unsigned int unitnum, const matrix4x4_t *matrix) { gltextureunit_t *unit = gl_state.units + unitnum; @@ -1828,8 +1979,8 @@ void R_Mesh_TexMatrix(unsigned int unitnum, const matrix4x4_t *matrix) unit->matrix = *matrix; CHECKGLERROR Matrix4x4_ToArrayDoubleGL(&unit->matrix, glmatrix); - qglMatrixMode(GL_TEXTURE);CHECKGLERROR GL_ActiveTexture(unitnum); + qglMatrixMode(GL_TEXTURE);CHECKGLERROR qglLoadMatrixd(glmatrix);CHECKGLERROR qglMatrixMode(GL_MODELVIEW);CHECKGLERROR } @@ -1840,9 +1991,10 @@ void R_Mesh_TexMatrix(unsigned int unitnum, const matrix4x4_t *matrix) if (unit->texmatrixenabled) { unit->texmatrixenabled = false; + unit->matrix = identitymatrix; CHECKGLERROR - qglMatrixMode(GL_TEXTURE);CHECKGLERROR GL_ActiveTexture(unitnum); + qglMatrixMode(GL_TEXTURE);CHECKGLERROR qglLoadIdentity();CHECKGLERROR qglMatrixMode(GL_MODELVIEW);CHECKGLERROR } @@ -2012,9 +2164,10 @@ void R_Mesh_ResetTextureState(void) if (unit->texmatrixenabled) { unit->texmatrixenabled = false; + unit->matrix = identitymatrix; CHECKGLERROR - qglMatrixMode(GL_TEXTURE);CHECKGLERROR GL_ActiveTexture(unitnum); + qglMatrixMode(GL_TEXTURE);CHECKGLERROR qglLoadIdentity();CHECKGLERROR qglMatrixMode(GL_MODELVIEW);CHECKGLERROR } @@ -2056,17 +2209,3 @@ void R_Mesh_ResetTextureState(void) } } } - -void R_Mesh_Draw_ShowTris(int firstvertex, int numvertices, int numtriangles, const int *elements) -{ - CHECKGLERROR - qglBegin(GL_LINES); - for (;numtriangles;numtriangles--, elements += 3) - { - qglArrayElement(elements[0]);qglArrayElement(elements[1]); - qglArrayElement(elements[1]);qglArrayElement(elements[2]); - qglArrayElement(elements[2]);qglArrayElement(elements[0]); - } - qglEnd(); - CHECKGLERROR -}