#include "quakedef.h"
+#include "image.h"
+#include "jpeg.h"
+
+//#define MESH_VAR
+#define MESH_BATCH
+
+// 65536 is the max addressable on a Geforce 256 up until Geforce3
+// (excluding MX), seems a reasonable number...
+cvar_t gl_mesh_maxverts = {0, "gl_mesh_maxverts", "65536"};
+cvar_t gl_mesh_floatcolors = {0, "gl_mesh_floatcolors", "1"};
+cvar_t gl_mesh_drawrangeelements = {0, "gl_mesh_drawrangeelements", "1"};
+#ifdef MESH_VAR
+cvar_t gl_mesh_vertex_array_range = {0, "gl_mesh_vertex_array_range", "0"};
+cvar_t gl_mesh_vertex_array_range_readfrequency = {0, "gl_mesh_vertex_array_range_readfrequency", "0.2"};
+cvar_t gl_mesh_vertex_array_range_writefrequency = {0, "gl_mesh_vertex_array_range_writefrequency", "0.2"};
+cvar_t gl_mesh_vertex_array_range_priority = {0, "gl_mesh_vertex_array_range_priority", "0.7"};
+#endif
+#ifdef MESH_BATCH
+cvar_t gl_mesh_batching = {0, "gl_mesh_batching", "1"};
+#endif
+cvar_t gl_mesh_copyarrays = {0, "gl_mesh_copyarrays", "1"};
+cvar_t gl_delayfinish = {CVAR_SAVE, "gl_delayfinish", "0"};
-static int max_meshs;
-static int max_batch;
-static int max_verts; // always max_meshs * 3
-#define TRANSDEPTHRES 4096
+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"};
-static cvar_t gl_mesh_maxtriangles = {0, "gl_mesh_maxtriangles", "21760"};
-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", "1"};
+int gl_maxdrawrangeelementsvertices;
+int gl_maxdrawrangeelementsindices;
-typedef struct buf_mesh_s
-{
- struct buf_mesh_s *next;
- int depthmask;
- int blendfunc1, blendfunc2;
- int textures[MAX_TEXTUREUNITS];
- float texturergbscale[MAX_TEXTUREUNITS];
- int firsttriangle;
- int triangles;
-}
-buf_mesh_t;
+#ifdef DEBUGGL
+int errornumber = 0;
-typedef struct buf_transtri_s
+void GL_PrintError(int errornumber, char *filename, int linenumber)
{
- struct buf_transtri_s *next;
- buf_mesh_t *mesh;
- int index[3];
+ 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_transtri_t;
+#endif
-typedef struct buf_tri_s
-{
- int index[3];
-}
-buf_tri_t;
+#define BACKENDACTIVECHECK if (!backendactive) Sys_Error("GL backend function called when backend is not active\n");
+
+int c_meshs, c_meshelements;
+
+void SCR_ScreenShot_f (void);
+
+// these are externally accessible
+int r_lightmapscalebit;
+float r_colorscale;
+GLfloat *varray_vertex3f, *varray_buf_vertex3f;
+GLfloat *varray_color4f, *varray_buf_color4f;
+GLfloat *varray_texcoord3f[MAX_TEXTUREUNITS], *varray_buf_texcoord3f[MAX_TEXTUREUNITS];
+GLfloat *varray_texcoord2f[MAX_TEXTUREUNITS], *varray_buf_texcoord2f[MAX_TEXTUREUNITS];
+static qbyte *varray_buf_color4b;
+int mesh_maxverts;
+#ifdef MESH_VAR
+int mesh_var;
+float mesh_var_readfrequency;
+float mesh_var_writefrequency;
+float mesh_var_priority;
+#endif
+int varray_offset = 0, varray_offsetnext = 0;
+GLuint *varray_buf_elements3i;
+int mesh_maxelements = 32768;
+#ifdef MESH_BATCH
+int gl_batchvertexfirst = 0;
+int gl_batchvertexcount = 0;
+int gl_batchelementcount = 0;
+#endif
+
+static matrix4x4_t backend_viewmatrix;
+static matrix4x4_t backend_modelmatrix;
+static matrix4x4_t backend_modelviewmatrix;
+static matrix4x4_t backend_glmodelviewmatrix;
+static matrix4x4_t backend_projectmatrix;
+
+static int backendunits, backendactive;
+static mempool_t *gl_backend_mempool;
+
+/*
+note: here's strip order for a terrain row:
+0--1--2--3--4
+|\ |\ |\ |\ |
+| \| \| \| \|
+A--B--C--D--E
-typedef struct
+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;
+*/
+
+void GL_Backend_AllocElementsArray(void)
{
- float v[4];
+ if (varray_buf_elements3i)
+ Mem_Free(varray_buf_elements3i);
+ varray_buf_elements3i = Mem_Alloc(gl_backend_mempool, mesh_maxelements * sizeof(GLuint));
}
-buf_vertex_t;
-typedef struct
+void GL_Backend_FreeElementArray(void)
{
- float c[4];
+ if (varray_buf_elements3i)
+ Mem_Free(varray_buf_elements3i);
+ varray_buf_elements3i = NULL;
}
-buf_fcolor_t;
-typedef struct
+void GL_Backend_CheckCvars(void)
{
- byte c[4];
+ if (gl_mesh_maxverts.integer < 1024)
+ Cvar_SetValueQuick(&gl_mesh_maxverts, 1024);
+ if (gl_mesh_maxverts.integer > 65536)
+ Cvar_SetValueQuick(&gl_mesh_maxverts, 65536);
+#ifdef MESH_VAR
+ if (gl_mesh_vertex_array_range.integer && !gl_support_var)
+ Cvar_SetValueQuick(&gl_mesh_vertex_array_range, 0);
+ if (gl_mesh_vertex_array_range_readfrequency.value < 0)
+ Cvar_SetValueQuick(&gl_mesh_vertex_array_range_readfrequency, 0);
+ if (gl_mesh_vertex_array_range_readfrequency.value > 1)
+ Cvar_SetValueQuick(&gl_mesh_vertex_array_range_readfrequency, 1);
+ if (gl_mesh_vertex_array_range_writefrequency.value < 0)
+ Cvar_SetValueQuick(&gl_mesh_vertex_array_range_writefrequency, 0);
+ if (gl_mesh_vertex_array_range_writefrequency.value > 1)
+ Cvar_SetValueQuick(&gl_mesh_vertex_array_range_writefrequency, 1);
+ if (gl_mesh_vertex_array_range_priority.value < 0)
+ Cvar_SetValueQuick(&gl_mesh_vertex_array_range_priority, 0);
+ if (gl_mesh_vertex_array_range_priority.value > 1)
+ Cvar_SetValueQuick(&gl_mesh_vertex_array_range_priority, 1);
+#endif
}
-buf_bcolor_t;
-typedef struct
+int polygonelements[768];
+
+static void R_Mesh_CacheArray_Startup(void);
+static void R_Mesh_CacheArray_Shutdown(void);
+void GL_Backend_AllocArrays(void)
{
- float t[2];
-}
-buf_texcoord_t;
+ int i, size;
+ qbyte *data;
-static float meshfarclip;
-static int currentmesh, currenttriangle, currentvertex, backendunits, backendactive, meshmerge, floatcolors, 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];
+ if (!gl_backend_mempool)
+ {
+ gl_backend_mempool = Mem_AllocPool("GL_Backend");
+ varray_buf_vertex3f = NULL;
+ varray_buf_color4f = NULL;
+ varray_buf_color4b = NULL;
+ varray_buf_elements3i = NULL;
+ for (i = 0;i < MAX_TEXTUREUNITS;i++)
+ varray_buf_texcoord3f[i] = varray_buf_texcoord2f[i] = NULL;
+ }
-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;
-static buf_fcolor_t *buf_transfcolor;
-static buf_bcolor_t *buf_transbcolor;
-static buf_texcoord_t *buf_transtexcoord[MAX_TEXTUREUNITS];
+ if (varray_buf_vertex3f)
+#ifdef MESH_VAR
+ VID_FreeVertexArrays(varray_buf_vertex3f);
+#else
+ Mem_Free(varray_buf_vertex3f);
+#endif
+ varray_buf_vertex3f = NULL;
+ varray_buf_color4f = NULL;
+ varray_buf_color4b = NULL;
+ for (i = 0;i < MAX_TEXTUREUNITS;i++)
+ varray_buf_texcoord3f[i] = varray_buf_texcoord2f[i] = NULL;
+
+ mesh_maxverts = gl_mesh_maxverts.integer;
+ size = mesh_maxverts * (sizeof(float[3]) + sizeof(float[4]) + sizeof(qbyte[4]) + (sizeof(float[3]) + sizeof(float[2])) * backendunits);
+#ifdef MESH_VAR
+ mesh_var = gl_mesh_vertex_array_range.integer && gl_support_var;
+ mesh_var_readfrequency = gl_mesh_vertex_array_range_readfrequency.value;
+ mesh_var_writefrequency = gl_mesh_vertex_array_range_writefrequency.value;
+ mesh_var_priority = gl_mesh_vertex_array_range_priority.value;
+ data = VID_AllocVertexArrays(gl_backend_mempool, size, gl_mesh_vertex_array_range.integer, gl_mesh_vertex_array_range_readfrequency.value, gl_mesh_vertex_array_range_writefrequency.value, gl_mesh_vertex_array_range_priority.value);
+#else
+ data = Mem_Alloc(gl_backend_mempool, size);
+#endif
-static mempool_t *gl_backend_mempool;
+ varray_buf_vertex3f = (void *)data;data += sizeof(float[3]) * mesh_maxverts;
+ varray_buf_color4f = (void *)data;data += sizeof(float[4]) * mesh_maxverts;
+ for (i = 0;i < backendunits;i++)
+ {
+ varray_buf_texcoord3f[i] = (void *)data;data += sizeof(float[3]) * mesh_maxverts;
+ varray_buf_texcoord2f[i] = (void *)data;data += sizeof(float[2]) * mesh_maxverts;
+ }
+ for (;i < MAX_TEXTUREUNITS;i++)
+ varray_buf_texcoord3f[i] = varray_buf_texcoord2f[i] = NULL;
+ varray_buf_color4b = (void *)data;data += sizeof(qbyte[4]) * mesh_maxverts;
-static void gl_backend_start(void)
+ GL_Backend_AllocElementsArray();
+
+#ifdef MESH_VAR
+ if (mesh_var)
+ {
+ CHECKGLERROR
+ qglVertexArrayRangeNV(size, varray_buf_vertex3f);
+ CHECKGLERROR
+ }
+#endif
+
+ R_Mesh_CacheArray_Startup();
+}
+
+void GL_Backend_FreeArrays(void)
{
int i;
- max_verts = max_meshs * 3;
-
- gl_backend_mempool = Mem_AllocPool("GL_Backend");
+ R_Mesh_CacheArray_Shutdown();
-#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));\
+#ifdef MESH_VAR
+ if (mesh_var)
+ {
+ CHECKGLERROR
+ qglDisableClientState(GL_VERTEX_ARRAY_RANGE_NV);
+ CHECKGLERROR
}
+#endif
- 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)
+ if (varray_buf_vertex3f)
+#ifdef MESH_VAR
+ VID_FreeVertexArrays(varray_buf_vertex3f);
+#else
+ Mem_Free(varray_buf_vertex3f);
+#endif
+ varray_buf_vertex3f = NULL;
+ varray_buf_color4f = NULL;
+ varray_buf_color4b = NULL;
+ for (i = 0;i < MAX_TEXTUREUNITS;i++)
+ varray_buf_texcoord3f[i] = varray_buf_texcoord2f[i] = NULL;
+ varray_buf_elements3i = NULL;
- 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)
- BACKENDALLOC(buf_transfcolor, max_verts, buf_fcolor_t)
- BACKENDALLOC(buf_transbcolor, max_verts, buf_bcolor_t)
+ Mem_FreePool(&gl_backend_mempool);
+}
- for (i = 0;i < MAX_TEXTUREUNITS;i++)
+static void gl_backend_start(void)
+{
+ GL_Backend_CheckCvars();
+
+ 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;
- }
+ CHECKGLERROR
+ qglGetIntegerv(GL_MAX_ELEMENTS_VERTICES, &gl_maxdrawrangeelementsvertices);
+ CHECKGLERROR
+ qglGetIntegerv(GL_MAX_ELEMENTS_INDICES, &gl_maxdrawrangeelementsindices);
+ CHECKGLERROR
+ Con_Printf("glDrawRangeElements detected (max vertices %i, max indices %i)\n", gl_maxdrawrangeelementsvertices, gl_maxdrawrangeelementsindices);
}
+ if (strstr(gl_renderer, "3Dfx"))
+ {
+ 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();
+
+#ifdef MESH_VAR
+ if (mesh_var)
+ {
+ CHECKGLERROR
+ qglEnableClientState(GL_VERTEX_ARRAY_RANGE_NV);
+ CHECKGLERROR
+ }
+#endif
+ varray_offset = varray_offsetnext = 0;
+#ifdef MESH_BATCH
+ gl_batchvertexfirst = 0;
+ gl_batchvertexcount = 0;
+ gl_batchelementcount = 0;
+#endif
+
backendactive = true;
}
static void gl_backend_shutdown(void)
{
- int i;
- /*
-#define BACKENDFREE(var)\
- if (var)\
- {\
- Mem_Free(var);\
- var = NULL;\
+ backendunits = 0;
+ backendactive = false;
+
+ Con_Printf("OpenGL Backend shutting down\n");
+
+#ifdef MESH_VAR
+ if (mesh_var)
+ {
+ CHECKGLERROR
+ qglDisableClientState(GL_VERTEX_ARRAY_RANGE_NV);
+ CHECKGLERROR
}
- */
-#define BACKENDFREE(var) var = NULL;
+#endif
- BACKENDFREE(buf_mesh)
- BACKENDFREE(buf_tri)
- BACKENDFREE(buf_vertex)
- BACKENDFREE(buf_fcolor)
- BACKENDFREE(buf_bcolor)
+ GL_Backend_FreeArrays();
+}
- BACKENDFREE(buf_transmesh)
- BACKENDFREE(buf_transtri)
- BACKENDFREE(buf_transtri_list)
- BACKENDFREE(buf_transvertex)
- BACKENDFREE(buf_transfcolor)
- BACKENDFREE(buf_transbcolor)
+void GL_Backend_ResizeArrays(int numvertices)
+{
+ Cvar_SetValueQuick(&gl_mesh_maxverts, numvertices);
+ GL_Backend_CheckCvars();
+ mesh_maxverts = gl_mesh_maxverts.integer;
+ GL_Backend_AllocArrays();
+}
- for (i = 0;i < MAX_TEXTUREUNITS;i++)
+static void gl_backend_newmap(void)
+{
+}
+
+void gl_backend_init(void)
+{
+ int i;
+
+ for (i = 0;i < POLYGONELEMENTS_MAXPOINTS - 2;i++)
{
- BACKENDFREE(buf_texcoord[i])
- BACKENDFREE(buf_transtexcoord[i])
+ polygonelements[i * 3 + 0] = 0;
+ polygonelements[i * 3 + 1] = i + 1;
+ polygonelements[i * 3 + 2] = i + 2;
}
- Mem_FreePool(&gl_backend_mempool);
+ Cvar_RegisterVariable(&r_render);
+ Cvar_RegisterVariable(&gl_dither);
+ Cvar_RegisterVariable(&gl_lockarrays);
+ Cvar_RegisterVariable(&gl_delayfinish);
+#ifdef NORENDER
+ Cvar_SetValue("r_render", 0);
+#endif
- backendunits = 0;
- backendactive = false;
+ Cvar_RegisterVariable(&gl_mesh_maxverts);
+ Cvar_RegisterVariable(&gl_mesh_floatcolors);
+ Cvar_RegisterVariable(&gl_mesh_drawrangeelements);
+#ifdef MESH_VAR
+ Cvar_RegisterVariable(&gl_mesh_vertex_array_range);
+ Cvar_RegisterVariable(&gl_mesh_vertex_array_range_readfrequency);
+ Cvar_RegisterVariable(&gl_mesh_vertex_array_range_writefrequency);
+ Cvar_RegisterVariable(&gl_mesh_vertex_array_range_priority);
+#endif
+#ifdef MESH_BATCH
+ Cvar_RegisterVariable(&gl_mesh_batching);
+#endif
+ Cvar_RegisterVariable(&gl_mesh_copyarrays);
+ R_RegisterModule("GL_Backend", gl_backend_start, gl_backend_shutdown, gl_backend_newmap);
}
-static void gl_backend_bufferchanges(int init)
+void GL_SetupView_ViewPort (int x, int y, int width, int height)
{
- // 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 (!r_render.integer)
+ return;
- 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);
+ // y is weird beause OpenGL is bottom to top, we use top to bottom
+ qglViewport(x, vid.realheight - (y + height), width, height);
+ CHECKGLERROR
+}
- max_batch = gl_mesh_batchtriangles.integer;
+void GL_SetupView_Orientation_Identity (void)
+{
+ Matrix4x4_CreateIdentity(&backend_viewmatrix);
+ memset(&backend_modelmatrix, 0, sizeof(backend_modelmatrix));
+}
- if (max_meshs != gl_mesh_maxtriangles.integer)
- {
- max_meshs = gl_mesh_maxtriangles.integer;
+void GL_SetupView_Orientation_FromEntity (vec3_t origin, vec3_t angles)
+{
+ 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));
+}
+
+void GL_SetupView_Mode_Perspective (double fovx, double fovy, double zNear, double zFar)
+{
+ double xmax, ymax;
+
+ if (!r_render.integer)
+ return;
+
+ // 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();
+}
+
+void GL_SetupView_Mode_PerspectiveInfiniteFarClip (double fovx, double fovy, double zNear)
+{
+ float nudge, m[16];
+
+ if (!r_render.integer)
+ return;
+
+ // set up viewpoint
+ qglMatrixMode(GL_PROJECTION);CHECKGLERROR
+ qglLoadIdentity();CHECKGLERROR
+ // set view pyramid
+ nudge = 1.0 - 1.0 / (1<<23);
+ m[ 0] = 1.0 / tan(fovx * M_PI / 360.0);
+ m[ 1] = 0;
+ m[ 2] = 0;
+ m[ 3] = 0;
+ m[ 4] = 0;
+ m[ 5] = 1.0 / tan(fovy * M_PI / 360.0);
+ m[ 6] = 0;
+ m[ 7] = 0;
+ m[ 8] = 0;
+ m[ 9] = 0;
+ m[10] = -1 * nudge;
+ m[11] = -1 * nudge;
+ m[12] = 0;
+ m[13] = 0;
+ m[14] = -2 * zNear * nudge;
+ m[15] = 0;
+ qglLoadMatrixf(m);
+ qglMatrixMode(GL_MODELVIEW);CHECKGLERROR
+ GL_SetupView_Orientation_Identity();
+ backend_projectmatrix.m[0][0] = m[0];
+ backend_projectmatrix.m[1][0] = m[1];
+ backend_projectmatrix.m[2][0] = m[2];
+ backend_projectmatrix.m[3][0] = m[3];
+ backend_projectmatrix.m[0][1] = m[4];
+ backend_projectmatrix.m[1][1] = m[5];
+ backend_projectmatrix.m[2][1] = m[6];
+ backend_projectmatrix.m[3][1] = m[7];
+ backend_projectmatrix.m[0][2] = m[8];
+ backend_projectmatrix.m[1][2] = m[9];
+ backend_projectmatrix.m[2][2] = m[10];
+ backend_projectmatrix.m[3][2] = m[11];
+ backend_projectmatrix.m[0][3] = m[12];
+ backend_projectmatrix.m[1][3] = m[13];
+ backend_projectmatrix.m[2][3] = m[14];
+ backend_projectmatrix.m[3][3] = m[15];
+}
+
+void GL_SetupView_Mode_Ortho (double x1, double y1, double x2, double y2, double zNear, double zFar)
+{
+ if (!r_render.integer)
+ return;
+
+ // set up viewpoint
+ qglMatrixMode(GL_PROJECTION);CHECKGLERROR
+ qglLoadIdentity();CHECKGLERROR
+ qglOrtho(x1, x2, y2, y1, zNear, zFar);
+ qglMatrixMode(GL_MODELVIEW);CHECKGLERROR
+ GL_SetupView_Orientation_Identity();
+}
- if (!init)
+typedef struct gltextureunit_s
+{
+ int t1d, t2d, t3d, tcubemap;
+ int arrayenabled, arrayis3d;
+ void *pointer_texcoord;
+ float rgbscale, alphascale;
+ int combinergb, combinealpha;
+ // FIXME: add more combine stuff
+}
+gltextureunit_t;
+
+static struct
+{
+ int blendfunc1;
+ int blendfunc2;
+ int blend;
+ GLboolean depthmask;
+ int depthdisable;
+ int unit;
+ int clientunit;
+ gltextureunit_t units[MAX_TEXTUREUNITS];
+ int colorarray;
+ float color4f[4];
+ int lockrange_first;
+ int lockrange_count;
+ int pointervertexcount;
+ void *pointer_vertex;
+ void *pointer_color;
+}
+gl_state;
+
+void GL_SetupTextureState(void)
+{
+ int i;
+ gltextureunit_t *unit;
+ for (i = 0;i < backendunits;i++)
+ {
+ if (qglActiveTexture)
+ qglActiveTexture(GL_TEXTURE0_ARB + (gl_state.unit = i));CHECKGLERROR
+ if (qglClientActiveTexture)
+ qglClientActiveTexture(GL_TEXTURE0_ARB + (gl_state.clientunit = i));CHECKGLERROR
+ unit = gl_state.units + i;
+ unit->t1d = 0;
+ unit->t2d = 0;
+ unit->t3d = 0;
+ unit->tcubemap = 0;
+ unit->arrayenabled = false;
+ unit->arrayis3d = false;
+ unit->pointer_texcoord = NULL;
+ unit->rgbscale = 1;
+ unit->alphascale = 1;
+ unit->combinergb = GL_MODULATE;
+ unit->combinealpha = GL_MODULATE;
+ qglDisableClientState(GL_TEXTURE_COORD_ARRAY);CHECKGLERROR
+ qglTexCoordPointer(2, GL_FLOAT, sizeof(float[2]), varray_buf_texcoord2f[i]);CHECKGLERROR
+ qglDisable(GL_TEXTURE_1D);CHECKGLERROR
+ qglDisable(GL_TEXTURE_2D);CHECKGLERROR
+ if (gl_texture3d)
{
- gl_backend_shutdown();
- gl_backend_start();
+ qglDisable(GL_TEXTURE_3D);CHECKGLERROR
+ }
+ if (gl_texturecubemap)
+ {
+ qglDisable(GL_TEXTURE_CUBE_MAP_ARB);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
+ {
+ qglTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);CHECKGLERROR
}
}
}
-float r_farclip, r_newfarclip;
-
-static void gl_backend_newmap(void)
+void GL_Backend_ResetState(void)
{
- r_farclip = r_newfarclip = 2048.0f;
+ memset(&gl_state, 0, sizeof(gl_state));
+ gl_state.depthdisable = false;
+ gl_state.blendfunc1 = GL_ONE;
+ gl_state.blendfunc2 = GL_ZERO;
+ gl_state.blend = false;
+ gl_state.depthmask = GL_TRUE;
+ gl_state.colorarray = false;
+ gl_state.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.pointervertexcount = 0;
+ gl_state.pointer_vertex = NULL;
+ gl_state.pointer_color = NULL;
+
+ CHECKGLERROR
+ qglDisableClientState(GL_COLOR_ARRAY);CHECKGLERROR
+ qglDisableClientState(GL_VERTEX_ARRAY);CHECKGLERROR
+
+ qglEnable(GL_CULL_FACE);CHECKGLERROR
+ qglCullFace(GL_FRONT);CHECKGLERROR
+ qglEnable(GL_DEPTH_TEST);CHECKGLERROR
+ qglBlendFunc(gl_state.blendfunc1, gl_state.blendfunc2);CHECKGLERROR
+ qglDisable(GL_BLEND);CHECKGLERROR
+ qglDepthMask(gl_state.depthmask);CHECKGLERROR
+ qglVertexPointer(3, GL_FLOAT, sizeof(float[3]), varray_buf_vertex3f);CHECKGLERROR
+ qglEnableClientState(GL_VERTEX_ARRAY);CHECKGLERROR
+ if (gl_mesh_floatcolors.integer)
+ {
+ qglColorPointer(4, GL_FLOAT, sizeof(float[4]), varray_buf_color4f);CHECKGLERROR
+ }
+ else
+ {
+ qglColorPointer(4, GL_UNSIGNED_BYTE, sizeof(qbyte[4]), varray_buf_color4b);CHECKGLERROR
+ }
+ GL_Color(0, 0, 0, 0);
+ GL_Color(1, 1, 1, 1);
+
+ GL_SetupTextureState();
}
-int polyindexarray[768];
+void GL_UseColorArray(void)
+{
+ if (!gl_state.colorarray)
+ {
+#ifdef MESH_BATCH
+ if (gl_batchelementcount)
+ R_Mesh_EndBatch();
+#endif
+ gl_state.colorarray = true;
+ qglEnableClientState(GL_COLOR_ARRAY);CHECKGLERROR
+ }
+}
-void gl_backend_init(void)
+void GL_Color(float cr, float cg, float cb, float ca)
{
- int i;
- Cvar_RegisterVariable(&gl_mesh_maxtriangles);
- Cvar_RegisterVariable(&gl_mesh_batchtriangles);
- Cvar_RegisterVariable(&gl_mesh_merge);
- Cvar_RegisterVariable(&gl_mesh_floatcolors);
- R_RegisterModule("GL_Backend", gl_backend_start, gl_backend_shutdown, gl_backend_newmap);
- gl_backend_bufferchanges(true);
- for (i = 0;i < 256;i++)
+ if (gl_state.colorarray)
{
- polyindexarray[i*3+0] = 0;
- polyindexarray[i*3+1] = i + 1;
- polyindexarray[i*3+2] = i + 2;
+#ifdef MESH_BATCH
+ if (gl_batchelementcount)
+ R_Mesh_EndBatch();
+#endif
+ gl_state.colorarray = false;
+ qglDisableClientState(GL_COLOR_ARRAY);CHECKGLERROR
+ gl_state.color4f[0] = cr;
+ gl_state.color4f[1] = cg;
+ gl_state.color4f[2] = cb;
+ gl_state.color4f[3] = ca;
+ qglColor4f(cr, cg, cb, ca);
+ }
+ else
+ {
+ if (gl_state.color4f[0] != cr || gl_state.color4f[1] != cg || gl_state.color4f[2] != cb || gl_state.color4f[3] != ca)
+ {
+#ifdef MESH_BATCH
+ if (gl_batchelementcount)
+ R_Mesh_EndBatch();
+#endif
+ gl_state.color4f[0] = cr;
+ gl_state.color4f[1] = cg;
+ gl_state.color4f[2] = cb;
+ gl_state.color4f[3] = ca;
+ qglColor4f(cr, cg, cb, ca);
+ }
}
}
-static float viewdist;
+void GL_LockArrays(int first, int count)
+{
+ if (gl_state.lockrange_count != count || gl_state.lockrange_first != first)
+ {
+ if (gl_state.lockrange_count)
+ {
+ gl_state.lockrange_count = 0;
+ CHECKGLERROR
+ qglUnlockArraysEXT();
+ CHECKGLERROR
+ }
+ if (count && gl_supportslockarrays && gl_lockarrays.integer)
+ {
+ gl_state.lockrange_first = first;
+ gl_state.lockrange_count = count;
+ CHECKGLERROR
+ qglLockArraysEXT(first, count);
+ CHECKGLERROR
+ }
+ }
+}
-int c_meshtris;
+void GL_TransformToScreen(const vec4_t in, vec4_t out)
+{
+ vec4_t temp;
+ float iw;
+ Matrix4x4_Transform4 (&backend_viewmatrix, in, temp);
+ Matrix4x4_Transform4 (&backend_projectmatrix, temp, out);
+ iw = 1.0f / out[3];
+ out[0] = r_refdef.x + (out[0] * iw + 1.0f) * r_refdef.width * 0.5f;
+ out[1] = r_refdef.y + (out[1] * iw + 1.0f) * r_refdef.height * 0.5f;
+ out[2] = out[2] * iw;
+}
// called at beginning of frame
-void R_Mesh_Clear(void)
+void R_Mesh_Start(void)
{
- if (!backendactive)
- Sys_Error("R_Mesh_Clear: called when backend is not active\n");
+ BACKENDACTIVECHECK
- gl_backend_bufferchanges(false);
+ CHECKGLERROR
- currentmesh = 0;
- currenttriangle = 0;
- currentvertex = 0;
- currenttransmesh = 0;
- currenttranstriangle = 0;
- currenttransvertex = 0;
- meshfarclip = 0;
- meshmerge = gl_mesh_merge.integer;
- floatcolors = gl_mesh_floatcolors.integer;
- transranout = false;
- viewdist = DotProduct(r_origin, vpn);
+ GL_Backend_CheckCvars();
+ if (mesh_maxverts != gl_mesh_maxverts.integer
+#ifdef MESH_VAR
+ || mesh_var != (gl_mesh_vertex_array_range.integer && gl_support_var)
+ || mesh_var_readfrequency != gl_mesh_vertex_array_range_readfrequency.value
+ || mesh_var_writefrequency != gl_mesh_vertex_array_range_writefrequency.value
+ || mesh_var_priority != gl_mesh_vertex_array_range_priority.value
+#endif
+ )
+ GL_Backend_ResizeArrays(gl_mesh_maxverts.integer);
- c_meshtris = 0;
+ GL_Backend_ResetState();
+#ifdef MESH_VAR
+ if (!mesh_var)
+ {
+ gl_batchvertexfirst = gl_batchvertexcount = gl_batchelementcount = 0;
+ varray_offset = varray_offsetnext = 0;
+ }
+#else
+ varray_offset = varray_offsetnext = 0;
+#endif
}
-#ifdef DEBUGGL
-void GL_PrintError(int errornumber, char *filename, int linenumber)
+int gl_backend_rebindtextures;
+
+void GL_ConvertColorsFloatToByte(int first, int count)
{
- switch(errornumber)
+ int i, k;
+ union {float f[4];int i[4];} *color4fi;
+ struct {GLubyte c[4];} *color4b;
+
+ // shift float to have 8bit fraction at base of number
+ color4fi = (void *)(varray_buf_color4f + first * 4);
+ for (i = 0;i < count;i++, color4fi++)
{
- 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;
- case GL_TABLE_TOO_LARGE:
- Con_Printf("GL_TABLE_TOO_LARGE at %s:%i\n", filename, linenumber);
- break;
- default:
- Con_Printf("GL UNKNOWN (%i) at %s:%i\n", errornumber, filename, linenumber);
- break;
+ color4fi->f[0] += 32768.0f;
+ color4fi->f[1] += 32768.0f;
+ color4fi->f[2] += 32768.0f;
+ color4fi->f[3] += 32768.0f;
+ }
+
+ // then read as integer and kill float bits...
+ color4fi = (void *)(varray_buf_color4f + first * 4);
+ color4b = (void *)(varray_buf_color4b + first * 4);
+ for (i = 0;i < count;i++, color4fi++, color4b++)
+ {
+ k = color4fi->i[0] & 0x7FFFFF;color4b->c[0] = (GLubyte) min(k, 255);
+ k = color4fi->i[1] & 0x7FFFFF;color4b->c[1] = (GLubyte) min(k, 255);
+ k = color4fi->i[2] & 0x7FFFFF;color4b->c[2] = (GLubyte) min(k, 255);
+ k = color4fi->i[3] & 0x7FFFFF;color4b->c[3] = (GLubyte) min(k, 255);
}
}
-int errornumber = 0;
+/*
+// enlarges geometry buffers if they are too small
+void _R_Mesh_ResizeCheck(int numverts)
+{
+ if (numverts > mesh_maxverts)
+ {
+ BACKENDACTIVECHECK
+ GL_Backend_ResizeArrays(numverts + 100);
+ GL_Backend_ResetState();
+ }
+}
+*/
+
+void R_Mesh_EndBatch(void)
+{
+#ifdef MESH_BATCH
+ if (gl_batchelementcount)
+ {
+ if (gl_state.pointervertexcount)
+ Host_Error("R_Mesh_EndBatch: called with pointers enabled\n");
+
+ if (gl_state.colorarray && !gl_mesh_floatcolors.integer && gl_state.pointer_color == NULL)
+ GL_ConvertColorsFloatToByte(gl_batchvertexfirst, gl_batchvertexcount);
+ if (r_render.integer)
+ {
+ //int i;for (i = 0;i < gl_batchelementcount;i++) if (varray_buf_elements3i[i] < gl_batchvertexfirst || varray_buf_elements3i[i] >= (gl_batchvertexfirst + gl_batchvertexcount)) Host_Error("R_Mesh_EndBatch: invalid element #%i (value %i) outside range %i-%i\n", i, varray_buf_elements3i[i], gl_batchvertexfirst, gl_batchvertexfirst + gl_batchvertexcount);
+ CHECKGLERROR
+ GL_LockArrays(gl_batchvertexfirst, gl_batchvertexcount);
+ if (gl_mesh_drawrangeelements.integer && qglDrawRangeElements != NULL)
+ {
+ qglDrawRangeElements(GL_TRIANGLES, gl_batchvertexfirst, gl_batchvertexfirst + gl_batchvertexcount, gl_batchelementcount, GL_UNSIGNED_INT, (const GLuint *) varray_buf_elements3i);CHECKGLERROR
+ }
+ else
+ {
+ qglDrawElements(GL_TRIANGLES, gl_batchelementcount, GL_UNSIGNED_INT, (const GLuint *) varray_buf_elements3i);CHECKGLERROR
+ }
+ GL_LockArrays(0, 0);
+ }
+ gl_batchelementcount = 0;
+ gl_batchvertexcount = 0;
+ }
#endif
+}
-// renders mesh buffers, called to flush buffers when full
-void R_Mesh_Render(void)
+void GL_Backend_RenumberElements(int *out, int count, const int *in, int offset)
{
- int i, k, blendfunc1, blendfunc2, blend, depthmask, unit = 0, clientunit = 0, firsttriangle, triangles, 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;
+ int i;
+ //if (offset)
+ for (i = 0;i < count;i++)
+ *out++ = *in++ + offset;
+ //else
+ // memcpy(out, in, sizeof(*out) * count);
+}
-CHECKGLERROR
+// gets vertex buffer space for use with a following R_Mesh_Draw
+// (can be multiple Draw calls per GetSpace)
+void R_Mesh_GetSpace(int numverts)
+{
+ int i;
- farclip = meshfarclip + 256.0f - viewdist; // + 256 just to be safe
+ if (gl_state.pointervertexcount)
+ Host_Error("R_Mesh_GetSpace: called with pointers enabled\n");
+ if (gl_state.lockrange_count)
+ Host_Error("R_Mesh_GetSpace: called with arrays locked\n");
- // push out farclip for next frame
- if (farclip > r_newfarclip)
- r_newfarclip = ceil((farclip + 255) / 256) * 256 + 256;
+ varray_offset = varray_offsetnext;
+ if (varray_offset + numverts > mesh_maxverts)
+ {
+ //Con_Printf("R_Mesh_GetSpace: vertex buffer wrap\n");
+#ifdef MESH_BATCH
+ if (gl_batchelementcount)
+ R_Mesh_EndBatch();
+#endif
+ varray_offset = 0;
+#ifdef MESH_VAR
+ if (mesh_var)
+ {
+ CHECKGLERROR
+ qglFlushVertexArrayRangeNV();
+ CHECKGLERROR
+ }
+#endif
+ if (numverts > mesh_maxverts)
+ {
+ GL_Backend_ResizeArrays(numverts + 100);
+ GL_Backend_ResetState();
+ }
+ }
+ varray_vertex3f = varray_buf_vertex3f + varray_offset * 3;
+ varray_color4f = varray_buf_color4f + varray_offset * 4;
for (i = 0;i < backendunits;i++)
- texturergbscale[i] = 1;
-
- glEnable(GL_CULL_FACE);
-CHECKGLERROR
- glCullFace(GL_FRONT);
-CHECKGLERROR
- glEnable(GL_DEPTH_TEST);
-CHECKGLERROR
- blendfunc1 = GL_ONE;
- blendfunc2 = GL_ZERO;
- glBlendFunc(blendfunc1, blendfunc2);
-CHECKGLERROR
- blend = 0;
- glDisable(GL_BLEND);
-CHECKGLERROR
- depthmask = 1;
- glDepthMask(depthmask);
-CHECKGLERROR
-
-CHECKGLERROR
- glVertexPointer(3, GL_FLOAT, sizeof(buf_vertex_t), buf_vertex);
-CHECKGLERROR
- glEnableClientState(GL_VERTEX_ARRAY);
-CHECKGLERROR
- if (floatcolors)
- {
- glColorPointer(4, GL_FLOAT, sizeof(buf_fcolor_t), buf_fcolor);
-CHECKGLERROR
+ {
+ varray_texcoord3f[i] = varray_buf_texcoord3f[i] + varray_offset * 3;
+ varray_texcoord2f[i] = varray_buf_texcoord2f[i] + varray_offset * 2;
+ }
+
+ varray_offsetnext = varray_offset + numverts;
+}
+
+// renders triangles using vertices from the most recent GetSpace call
+// (can be multiple Draw calls per GetSpace)
+void R_Mesh_Draw(int numverts, int numtriangles, const int *elements)
+{
+ int numelements = numtriangles * 3;
+ if (numtriangles == 0 || numverts == 0)
+ {
+ Con_Printf("R_Mesh_Draw(%d, %d, %08p);\n", numverts, numtriangles, elements);
+ return;
+ }
+ c_meshs++;
+ c_meshelements += numelements;
+ CHECKGLERROR
+ if (gl_state.pointervertexcount)
+ {
+#ifdef MESH_BATCH
+ if (gl_batchelementcount)
+ R_Mesh_EndBatch();
+#endif
+ if (r_render.integer)
+ {
+ GL_LockArrays(0, gl_state.pointervertexcount);
+ if (gl_mesh_drawrangeelements.integer && qglDrawRangeElements != NULL)
+ {
+ qglDrawRangeElements(GL_TRIANGLES, 0, gl_state.pointervertexcount, numelements, GL_UNSIGNED_INT, elements);CHECKGLERROR
+ }
+ else
+ {
+ qglDrawElements(GL_TRIANGLES, numelements, GL_UNSIGNED_INT, elements);CHECKGLERROR
+ }
+ GL_LockArrays(0, 0);
+ }
+ }
+#ifdef MESH_BATCH
+ else if (gl_mesh_batching.integer)
+ {
+ if (mesh_maxelements < gl_batchelementcount + numelements)
+ {
+ //Con_Printf("R_Mesh_Draw: enlarging elements array\n");
+ if (gl_batchelementcount)
+ R_Mesh_EndBatch();
+ // round up to a multiple of 1024 and add another 1024 just for good measure
+ mesh_maxelements = (gl_batchelementcount + numelements + 1024 + 1023) & ~1023;
+ GL_Backend_AllocElementsArray();
+ }
+ if (varray_offset < gl_batchvertexfirst && gl_batchelementcount)
+ R_Mesh_EndBatch();
+ if (gl_batchelementcount == 0)
+ {
+ gl_batchvertexfirst = varray_offset;
+ gl_batchvertexcount = 0;
+ }
+ if (gl_batchvertexcount < varray_offsetnext - gl_batchvertexfirst)
+ gl_batchvertexcount = varray_offsetnext - gl_batchvertexfirst;
+ GL_Backend_RenumberElements(varray_buf_elements3i + gl_batchelementcount, numelements, elements, varray_offset);
+ //Con_Printf("off %i:%i, vertex %i:%i, element %i:%i\n", varray_offset, varray_offsetnext, gl_batchvertexfirst, gl_batchvertexfirst + gl_batchvertexcount, gl_batchelementcount, gl_batchelementcount + numelements);
+ gl_batchelementcount += numelements;
+ //{int i;for (i = 0;i < gl_batchelementcount;i++) if (varray_buf_elements3i[i] < gl_batchvertexfirst || varray_buf_elements3i[i] >= (gl_batchvertexfirst + gl_batchvertexcount)) Host_Error("R_Mesh_EndBatch: invalid element #%i (value %i) outside range %i-%i, there were previously %i elements and there are now %i elements, varray_offset is %i\n", i, varray_buf_elements3i[i], gl_batchvertexfirst, gl_batchvertexfirst + gl_batchvertexcount, gl_batchelementcount - numelements, gl_batchelementcount, varray_offset);}
}
+#endif
else
{
- glColorPointer(4, GL_UNSIGNED_BYTE, sizeof(buf_bcolor_t), buf_bcolor);
-CHECKGLERROR
+ GL_Backend_RenumberElements(varray_buf_elements3i, numelements, elements, varray_offset);
+ if (r_render.integer)
+ {
+ GL_LockArrays(varray_offset, numverts);
+ if (gl_mesh_drawrangeelements.integer && qglDrawRangeElements != NULL)
+ {
+ qglDrawRangeElements(GL_TRIANGLES, varray_offset, varray_offset + numverts, numelements, GL_UNSIGNED_INT, varray_buf_elements3i);CHECKGLERROR
+ }
+ else
+ {
+ qglDrawElements(GL_TRIANGLES, numelements, GL_UNSIGNED_INT, varray_buf_elements3i);CHECKGLERROR
+ }
+ GL_LockArrays(0, 0);
+ }
+ }
+}
+
+// renders triangles using vertices from the most recent GetSpace call
+// (can be multiple Draw calls per GetSpace)
+void R_Mesh_Draw_NoBatching(int numverts, int numtriangles, const int *elements)
+{
+ int numelements = numtriangles * 3;
+ if (numtriangles == 0 || numverts == 0)
+ {
+ Con_Printf("R_Mesh_Draw_NoBatching(%d, %d, %08p);\n", numverts, numtriangles, elements);
+ return;
+ }
+ c_meshs++;
+ c_meshelements += numelements;
+ CHECKGLERROR
+ if (gl_state.pointervertexcount)
+ {
+ if (r_render.integer)
+ {
+ GL_LockArrays(0, gl_state.pointervertexcount);
+ if (gl_mesh_drawrangeelements.integer && qglDrawRangeElements != NULL)
+ {
+ qglDrawRangeElements(GL_TRIANGLES, 0, gl_state.pointervertexcount, numelements, GL_UNSIGNED_INT, elements);CHECKGLERROR
+ }
+ else
+ {
+ qglDrawElements(GL_TRIANGLES, numelements, GL_UNSIGNED_INT, elements);CHECKGLERROR
+ }
+ GL_LockArrays(0, 0);
+ }
+ }
+ else
+ {
+ GL_Backend_RenumberElements(varray_buf_elements3i, numelements, elements, varray_offset);
+ if (r_render.integer)
+ {
+ GL_LockArrays(varray_offset, numverts);
+ if (gl_mesh_drawrangeelements.integer && qglDrawRangeElements != NULL)
+ {
+ qglDrawRangeElements(GL_TRIANGLES, varray_offset, varray_offset + numverts, numelements, GL_UNSIGNED_INT, varray_buf_elements3i);CHECKGLERROR
+ }
+ else
+ {
+ qglDrawElements(GL_TRIANGLES, numelements, GL_UNSIGNED_INT, varray_buf_elements3i);CHECKGLERROR
+ }
+ GL_LockArrays(0, 0);
+ }
+ }
+}
+
+// restores backend state, used when done with 3D rendering
+void R_Mesh_Finish(void)
+{
+ int i;
+ BACKENDACTIVECHECK
+#ifdef MESH_BATCH
+ if (gl_batchelementcount)
+ R_Mesh_EndBatch();
+#endif
+ GL_LockArrays(0, 0);
+
+ for (i = backendunits - 1;i >= 0;i--)
+ {
+ if (qglActiveTexture)
+ qglActiveTexture(GL_TEXTURE0_ARB + i);CHECKGLERROR
+ if (qglClientActiveTexture)
+ qglClientActiveTexture(GL_TEXTURE0_ARB + i);CHECKGLERROR
+ qglDisableClientState(GL_TEXTURE_COORD_ARRAY);CHECKGLERROR
+ qglDisable(GL_TEXTURE_1D);CHECKGLERROR
+ qglDisable(GL_TEXTURE_2D);CHECKGLERROR
+ if (gl_texture3d)
+ {
+ 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
+}
+
+void R_Mesh_Matrix(const matrix4x4_t *matrix)
+{
+ if (memcmp(matrix, &backend_modelmatrix, sizeof(matrix4x4_t)))
+ {
+#ifdef MESH_BATCH
+ if (gl_batchelementcount)
+ R_Mesh_EndBatch();
+#endif
+ backend_modelmatrix = *matrix;
+ Matrix4x4_Concat(&backend_modelviewmatrix, &backend_viewmatrix, matrix);
+ Matrix4x4_Transpose(&backend_glmodelviewmatrix, &backend_modelviewmatrix);
+ qglLoadMatrixf(&backend_glmodelviewmatrix.m[0][0]);
}
- glEnableClientState(GL_COLOR_ARRAY);
-CHECKGLERROR
+}
+
+// sets up the requested state
+void R_Mesh_MainState(const rmeshstate_t *m)
+{
+ void *p;
+ BACKENDACTIVECHECK
- if (backendunits > 1)
+ if (gl_state.blendfunc1 != m->blendfunc1 || gl_state.blendfunc2 != m->blendfunc2)
{
- for (i = 0;i < backendunits;i++)
+#ifdef MESH_BATCH
+ if (gl_batchelementcount)
+ R_Mesh_EndBatch();
+#endif
+ qglBlendFunc(gl_state.blendfunc1 = m->blendfunc1, gl_state.blendfunc2 = m->blendfunc2);CHECKGLERROR
+ if (gl_state.blendfunc2 == GL_ZERO)
{
- glActiveTextureARB(GL_TEXTURE0_ARB + (unit = i));
-CHECKGLERROR
- glBindTexture(GL_TEXTURE_2D, (texture[i] = 0));
-CHECKGLERROR
- glDisable(GL_TEXTURE_2D);
-CHECKGLERROR
- if (gl_combine.integer)
+ if (gl_state.blendfunc1 == GL_ONE)
{
- 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 (gl_state.blend)
+ {
+ gl_state.blend = 0;
+ qglDisable(GL_BLEND);CHECKGLERROR
+ }
}
else
{
- glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
-CHECKGLERROR
+ 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
}
-
- glClientActiveTextureARB(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
+ if (gl_state.depthdisable != m->depthdisable)
+ {
+#ifdef MESH_BATCH
+ if (gl_batchelementcount)
+ R_Mesh_EndBatch();
+#endif
+ gl_state.depthdisable = m->depthdisable;
+ if (gl_state.depthdisable)
+ qglDisable(GL_DEPTH_TEST);
+ else
+ qglEnable(GL_DEPTH_TEST);
+ }
+ if (gl_state.depthmask != (m->blendfunc2 == GL_ZERO || m->depthwrite))
+ {
+#ifdef MESH_BATCH
+ if (gl_batchelementcount)
+ R_Mesh_EndBatch();
+#endif
+ qglDepthMask(gl_state.depthmask = (m->blendfunc2 == GL_ZERO || m->depthwrite));CHECKGLERROR
+ }
+
+ if (gl_state.pointervertexcount != m->pointervertexcount)
+ {
+#ifdef MESH_BATCH
+ if (gl_batchelementcount)
+ R_Mesh_EndBatch();
+#endif
+ gl_state.pointervertexcount = m->pointervertexcount;
+ }
+
+ p = gl_state.pointervertexcount ? m->pointer_vertex : NULL;
+ if (gl_state.pointer_vertex != p)
{
- glBindTexture(GL_TEXTURE_2D, (texture[0] = 0));
-CHECKGLERROR
- glDisable(GL_TEXTURE_2D);
-CHECKGLERROR
- glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
-CHECKGLERROR
+#ifdef MESH_BATCH
+ if (gl_batchelementcount)
+ R_Mesh_EndBatch();
+#endif
+ gl_state.pointer_vertex = p;
+ qglVertexPointer(3, GL_FLOAT, sizeof(float[3]), p ? p : varray_buf_vertex3f);CHECKGLERROR
+ }
- glTexCoordPointer(2, GL_FLOAT, sizeof(buf_texcoord_t), buf_texcoord[0]);
-CHECKGLERROR
- glEnableClientState(GL_TEXTURE_COORD_ARRAY);
-CHECKGLERROR
+ p = gl_state.pointervertexcount ? m->pointer_color : NULL;
+ if (gl_state.pointer_color != p)
+ {
+#ifdef MESH_BATCH
+ if (gl_batchelementcount)
+ R_Mesh_EndBatch();
+#endif
+ gl_state.pointer_color = p;
+ if (p || gl_mesh_floatcolors.integer)
+ qglColorPointer(4, GL_FLOAT, sizeof(float[4]), p ? p : varray_buf_color4f);
+ else
+ qglColorPointer(4, GL_UNSIGNED_BYTE, sizeof(GLubyte[4]), p ? p : varray_buf_color4b);
+ CHECKGLERROR
}
+}
+
+void R_Mesh_TextureState(const rmeshstate_t *m)
+{
+ int i, combinergb, combinealpha;
+ float scale;
+ gltextureunit_t *unit;
+ void *p;
- // lock as early as possible
- GL_LockArray(0, currentvertex);
-CHECKGLERROR
+ BACKENDACTIVECHECK
- for (k = 0;k < currentmesh;)
+ if (gl_backend_rebindtextures)
{
- mesh = &buf_mesh[k];
+ gl_backend_rebindtextures = false;
+ GL_SetupTextureState();
+ }
- if (backendunits > 1)
+ for (i = 0;i < backendunits;i++)
+ {
+ unit = gl_state.units + i;
+ if (unit->t1d != m->tex1d[i] || unit->t2d != m->tex[i] || unit->t3d != m->tex3d[i] || unit->tcubemap != m->texcubemap[i])
{
-// int topunit = 0;
- for (i = 0;i < backendunits;i++)
+ if (m->tex3d[i] || m->texcubemap[i])
{
- if (texture[i] != mesh->textures[i])
+ if (!unit->arrayis3d)
{
- if (unit != i)
+#ifdef MESH_BATCH
+ if (gl_batchelementcount)
+ R_Mesh_EndBatch();
+#endif
+ unit->arrayis3d = true;
+ if (gl_state.clientunit != i)
+ {
+ qglClientActiveTexture(GL_TEXTURE0_ARB + (gl_state.clientunit = i));CHECKGLERROR
+ }
+ qglTexCoordPointer(3, GL_FLOAT, sizeof(float[3]), varray_buf_texcoord3f[i]);
+ }
+ if (!unit->arrayenabled)
+ {
+#ifdef MESH_BATCH
+ if (gl_batchelementcount)
+ R_Mesh_EndBatch();
+#endif
+ unit->arrayenabled = true;
+ if (gl_state.clientunit != i)
{
- glActiveTextureARB(GL_TEXTURE0_ARB + (unit = i));
-CHECKGLERROR
+ qglClientActiveTexture(GL_TEXTURE0_ARB + (gl_state.clientunit = i));CHECKGLERROR
}
- if (texture[i] == 0)
+ qglEnableClientState(GL_TEXTURE_COORD_ARRAY);CHECKGLERROR
+ }
+ }
+ else if (m->tex1d[i] || m->tex[i])
+ {
+ if (unit->arrayis3d)
+ {
+#ifdef MESH_BATCH
+ if (gl_batchelementcount)
+ R_Mesh_EndBatch();
+#endif
+ unit->arrayis3d = false;
+ if (gl_state.clientunit != i)
{
- 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)
- {
- glClientActiveTextureARB(GL_TEXTURE0_ARB + (clientunit = i));
-CHECKGLERROR
- }
- glEnableClientState(GL_TEXTURE_COORD_ARRAY);
-CHECKGLERROR
+ qglClientActiveTexture(GL_TEXTURE0_ARB + (gl_state.clientunit = i));CHECKGLERROR
}
- glBindTexture(GL_TEXTURE_2D, (texture[i] = mesh->textures[i]));
-CHECKGLERROR
- if (texture[i] == 0)
+ qglTexCoordPointer(2, GL_FLOAT, sizeof(float[2]), varray_buf_texcoord2f[i]);
+ }
+ if (!unit->arrayenabled)
+ {
+#ifdef MESH_BATCH
+ if (gl_batchelementcount)
+ R_Mesh_EndBatch();
+#endif
+ unit->arrayenabled = true;
+ if (gl_state.clientunit != i)
{
- 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)
- {
- glClientActiveTextureARB(GL_TEXTURE0_ARB + (clientunit = i));
-CHECKGLERROR
- }
- glDisableClientState(GL_TEXTURE_COORD_ARRAY);
-CHECKGLERROR
+ qglClientActiveTexture(GL_TEXTURE0_ARB + (gl_state.clientunit = i));CHECKGLERROR
}
+ qglEnableClientState(GL_TEXTURE_COORD_ARRAY);CHECKGLERROR
}
- if (texturergbscale[i] != mesh->texturergbscale[i])
+ }
+ else
+ {
+ if (unit->arrayenabled)
{
- if (unit != i)
+#ifdef MESH_BATCH
+ if (gl_batchelementcount)
+ R_Mesh_EndBatch();
+#endif
+ unit->arrayenabled = false;
+ if (gl_state.clientunit != i)
{
- glActiveTextureARB(GL_TEXTURE0_ARB + (unit = i));
-CHECKGLERROR
+ qglClientActiveTexture(GL_TEXTURE0_ARB + (gl_state.clientunit = i));CHECKGLERROR
}
- glTexEnvf(GL_TEXTURE_ENV, GL_RGB_SCALE_ARB, (texturergbscale[i] = mesh->texturergbscale[i]));
-CHECKGLERROR
+ qglDisableClientState(GL_TEXTURE_COORD_ARRAY);CHECKGLERROR
}
-// if (texture[i])
-// topunit = i;
}
-// if (unit != topunit)
-// {
-// glActiveTextureARB(GL_TEXTURE0_ARB + (unit = topunit));
-//CHECKGLERROR
-// }
- }
- else
- {
- if (texture[0] != mesh->textures[0])
+ if (unit->t1d != m->tex1d[i])
+ {
+#ifdef MESH_BATCH
+ if (gl_batchelementcount)
+ R_Mesh_EndBatch();
+#endif
+ if (gl_state.unit != i)
+ {
+ qglActiveTexture(GL_TEXTURE0_ARB + (gl_state.unit = i));CHECKGLERROR
+ }
+ if (m->tex1d[i])
+ {
+ if (unit->t1d == 0)
+ qglEnable(GL_TEXTURE_1D);CHECKGLERROR
+ }
+ else
+ {
+ if (unit->t1d)
+ qglDisable(GL_TEXTURE_1D);CHECKGLERROR
+ }
+ qglBindTexture(GL_TEXTURE_1D, (unit->t1d = m->tex1d[i]));CHECKGLERROR
+ }
+ if (unit->t2d != m->tex[i])
{
- if (texture[0] == 0)
+#ifdef MESH_BATCH
+ if (gl_batchelementcount)
+ R_Mesh_EndBatch();
+#endif
+ if (gl_state.unit != i)
{
- glEnable(GL_TEXTURE_2D);
-CHECKGLERROR
- glEnableClientState(GL_TEXTURE_COORD_ARRAY);
-CHECKGLERROR
+ qglActiveTexture(GL_TEXTURE0_ARB + (gl_state.unit = i));CHECKGLERROR
}
- glBindTexture(GL_TEXTURE_2D, (texture[0] = mesh->textures[0]));
-CHECKGLERROR
- if (texture[0] == 0)
+ if (m->tex[i])
{
- glDisable(GL_TEXTURE_2D);
-CHECKGLERROR
- glDisableClientState(GL_TEXTURE_COORD_ARRAY);
-CHECKGLERROR
+ if (unit->t2d == 0)
+ qglEnable(GL_TEXTURE_2D);CHECKGLERROR
}
+ else
+ {
+ if (unit->t2d)
+ qglDisable(GL_TEXTURE_2D);CHECKGLERROR
+ }
+ qglBindTexture(GL_TEXTURE_2D, (unit->t2d = m->tex[i]));CHECKGLERROR
}
- }
- if (blendfunc1 != mesh->blendfunc1 || blendfunc2 != mesh->blendfunc2)
- {
- blendfunc1 = mesh->blendfunc1;
- blendfunc2 = mesh->blendfunc2;
- glBlendFunc(blendfunc1, blendfunc2);
-CHECKGLERROR
- if (blendfunc2 == GL_ZERO)
+ if (unit->t3d != m->tex3d[i])
{
- if (blendfunc1 == GL_ONE)
+#ifdef MESH_BATCH
+ if (gl_batchelementcount)
+ R_Mesh_EndBatch();
+#endif
+ if (gl_state.unit != i)
{
- if (blend)
- {
- blend = 0;
- glDisable(GL_BLEND);
-CHECKGLERROR
- }
+ qglActiveTexture(GL_TEXTURE0_ARB + (gl_state.unit = i));CHECKGLERROR
+ }
+ if (m->tex3d[i])
+ {
+ if (unit->t3d == 0)
+ qglEnable(GL_TEXTURE_3D);CHECKGLERROR
}
else
{
- if (!blend)
- {
- blend = 1;
- glEnable(GL_BLEND);
-CHECKGLERROR
- }
+ if (unit->t3d)
+ qglDisable(GL_TEXTURE_3D);CHECKGLERROR
}
+ qglBindTexture(GL_TEXTURE_3D, (unit->t3d = m->tex3d[i]));CHECKGLERROR
}
- else
+ if (unit->tcubemap != m->texcubemap[i])
{
- if (!blend)
+#ifdef MESH_BATCH
+ if (gl_batchelementcount)
+ R_Mesh_EndBatch();
+#endif
+ if (gl_state.unit != i)
+ {
+ qglActiveTexture(GL_TEXTURE0_ARB + (gl_state.unit = i));CHECKGLERROR
+ }
+ if (m->texcubemap[i])
{
- blend = 1;
- glEnable(GL_BLEND);
-CHECKGLERROR
+ if (unit->tcubemap == 0)
+ qglEnable(GL_TEXTURE_CUBE_MAP_ARB);CHECKGLERROR
}
+ else
+ {
+ if (unit->tcubemap)
+ qglDisable(GL_TEXTURE_CUBE_MAP_ARB);CHECKGLERROR
+ }
+ qglBindTexture(GL_TEXTURE_CUBE_MAP_ARB, (unit->tcubemap = m->texcubemap[i]));CHECKGLERROR
}
}
- if (depthmask != mesh->depthmask)
- {
- depthmask = mesh->depthmask;
- glDepthMask(depthmask);
-CHECKGLERROR
- }
-
- firsttriangle = mesh->firsttriangle;
- triangles = mesh->triangles;
- 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->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])
+ combinergb = m->texcombinergb[i];
+ if (!combinergb)
+ combinergb = GL_MODULATE;
+ if (unit->combinergb != combinergb)
+ {
+#ifdef MESH_BATCH
+ if (gl_batchelementcount)
+ R_Mesh_EndBatch();
+#endif
+ if (gl_state.unit != i)
+ {
+ qglActiveTexture(GL_TEXTURE0_ARB + (gl_state.unit = i));CHECKGLERROR
+ }
+ unit->combinergb = combinergb;
+ if (gl_combine.integer)
{
- triangles += mesh->triangles;
- mesh = &buf_mesh[++k];
+ qglTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB, unit->combinergb);CHECKGLERROR
+ }
+ else
+ {
+ qglTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, unit->combinergb);CHECKGLERROR
}
}
-
- glDrawElements(GL_TRIANGLES, triangles * 3, GL_UNSIGNED_INT, (unsigned int *)&buf_tri[firsttriangle]);
-CHECKGLERROR
- }
-
- currentmesh = 0;
- currenttriangle = 0;
- currentvertex = 0;
-
- GL_UnlockArray();
-CHECKGLERROR
-
- if (backendunits > 1)
- {
- for (i = backendunits - 1;i >= 0;i--)
+ combinealpha = m->texcombinealpha[i];
+ if (!combinealpha)
+ combinealpha = GL_MODULATE;
+ if (unit->combinealpha != combinealpha)
{
- glActiveTextureARB(GL_TEXTURE0_ARB + (unit = i));
-CHECKGLERROR
- glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
-CHECKGLERROR
+#ifdef MESH_BATCH
+ if (gl_batchelementcount)
+ R_Mesh_EndBatch();
+#endif
+ if (gl_state.unit != i)
+ {
+ qglActiveTexture(GL_TEXTURE0_ARB + (gl_state.unit = i));CHECKGLERROR
+ }
+ unit->combinealpha = combinealpha;
if (gl_combine.integer)
{
- glTexEnvf(GL_TEXTURE_ENV, GL_RGB_SCALE_ARB, 1.0f);
-CHECKGLERROR
+ qglTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA_ARB, unit->combinealpha);CHECKGLERROR
}
- if (i > 0)
+ }
+ scale = max(m->texrgbscale[i], 1);
+ if (gl_state.units[i].rgbscale != scale)
+ {
+#ifdef MESH_BATCH
+ if (gl_batchelementcount)
+ R_Mesh_EndBatch();
+#endif
+ if (gl_state.unit != i)
{
- glDisable(GL_TEXTURE_2D);
-CHECKGLERROR
+ qglActiveTexture(GL_TEXTURE0_ARB + (gl_state.unit = i));CHECKGLERROR
}
- else
+ qglTexEnvi(GL_TEXTURE_ENV, GL_RGB_SCALE_ARB, (gl_state.units[i].rgbscale = scale));CHECKGLERROR
+ }
+ scale = max(m->texalphascale[i], 1);
+ if (gl_state.units[i].alphascale != scale)
+ {
+#ifdef MESH_BATCH
+ if (gl_batchelementcount)
+ R_Mesh_EndBatch();
+#endif
+ if (gl_state.unit != i)
{
- glEnable(GL_TEXTURE_2D);
-CHECKGLERROR
+ qglActiveTexture(GL_TEXTURE0_ARB + (gl_state.unit = i));CHECKGLERROR
+ }
+ qglTexEnvi(GL_TEXTURE_ENV, GL_ALPHA_SCALE, (gl_state.units[i].alphascale = scale));CHECKGLERROR
+ }
+ if (unit->arrayenabled)
+ {
+ p = gl_state.pointervertexcount ? m->pointer_texcoord[i] : NULL;
+ if (unit->pointer_texcoord != p)
+ {
+#ifdef MESH_BATCH
+ if (gl_batchelementcount)
+ R_Mesh_EndBatch();
+#endif
+ unit->pointer_texcoord = p;
+ if (gl_state.clientunit != i)
+ {
+ qglClientActiveTexture(GL_TEXTURE0_ARB + (gl_state.clientunit = i));CHECKGLERROR
+ }
+ if (unit->arrayis3d)
+ qglTexCoordPointer(3, GL_FLOAT, sizeof(float[3]), p ? p : varray_buf_texcoord3f[i]);
+ else
+ qglTexCoordPointer(2, GL_FLOAT, sizeof(float[2]), p ? p : varray_buf_texcoord2f[i]);
+ CHECKGLERROR
}
- glBindTexture(GL_TEXTURE_2D, 0);
-CHECKGLERROR
-
- glClientActiveTextureARB(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
- glDepthMask(1);
-CHECKGLERROR
- glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
-CHECKGLERROR
}
-void R_Mesh_AddTransparent(void)
+void R_Mesh_State(const rmeshstate_t *m)
{
- 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;
+ R_Mesh_MainState(m);
+ R_Mesh_TextureState(m);
+}
- // 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 *));
+ SCREEN SHOTS
- // 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]];
+qboolean SCR_ScreenShot(char *filename, int x, int y, int width, int height, qboolean jpeg)
+{
+ qboolean ret;
+ int i, j;
+ qbyte *buffer;
- dist1 = DotProduct(vert1->v, vpn);
- dist2 = DotProduct(vert2->v, vpn);
- dist3 = DotProduct(vert3->v, vpn);
+ if (!r_render.integer)
+ return false;
- maxdist = max(dist1, max(dist2, dist3));
- if (maxdist < viewdistcompare)
- continue;
+ buffer = Mem_Alloc(tempmempool, width*height*3);
+ qglReadPixels (x, y, width, height, GL_RGB, GL_UNSIGNED_BYTE, buffer);
+ CHECKGLERROR
- 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++;
+ // LordHavoc: compensate for v_overbrightbits when using hardware gamma
+ if (v_hwgamma.integer)
+ {
+ for (i = 0;i < width * height * 3;i++)
+ {
+ j = buffer[i] << v_overbrightbits.integer;
+ buffer[i] = (qbyte) (bound(0, j, 255));
+ }
}
- 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)
- memcpy(&buf_fcolor[currentvertex], &buf_transfcolor[0], currenttransvertex * sizeof(buf_fcolor_t));
+ if (jpeg)
+ ret = JPEG_SaveImage_preflipped (filename, width, height, buffer);
else
- memcpy(&buf_fcolor[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));
+ ret = Image_WriteTGARGB_preflipped (filename, width, height, buffer);
- for (j = TRANSDEPTHRES - 1;j >= 0;j--)
+ Mem_Free(buffer);
+ return ret;
+}
+
+//=============================================================================
+
+void R_ClearScreen(void)
+{
+ if (r_render.integer)
{
- if ((tri = buf_transtri_list[j]))
+ // clear to black
+ qglClearColor(0,0,0,0);CHECKGLERROR
+ qglClearDepth(1);CHECKGLERROR
+ if (gl_stencil)
{
- 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->firsttriangle = currenttriangle++;
- mesh->triangles = 1;
- tri = tri->next;
- }
+ // LordHavoc: we use a stencil centered around 128 instead of 0,
+ // to avoid clamping interfering with strange shadow volume
+ // drawing orders
+ qglClearStencil(128);CHECKGLERROR
+ }
+ // clear the screen
+ qglClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | (gl_stencil ? GL_STENCIL_BUFFER_BIT : 0));CHECKGLERROR
+ // set dithering mode
+ if (gl_dither.integer)
+ {
+ qglEnable(GL_DITHER);CHECKGLERROR
+ }
+ else
+ {
+ qglDisable(GL_DITHER);CHECKGLERROR
}
}
- currentvertex += currenttransvertex;
- currenttransmesh = 0;
- currenttranstriangle = 0;
- currenttransvertex = 0;
}
-void R_Mesh_Draw(const rmeshinfo_t *m)
+/*
+==================
+SCR_UpdateScreen
+
+This is called every frame, and can also be called explicitly to flush
+text to the screen.
+==================
+*/
+void SCR_UpdateScreen (void)
{
- static int i, j, *index, overbright;
- static float c, *in, scaler, cr, cg, cb, ca;
- static buf_mesh_t *mesh;
- static buf_vertex_t *vert;
- static buf_fcolor_t *fcolor;
- static buf_bcolor_t *bcolor;
- static buf_texcoord_t *texcoord[MAX_TEXTUREUNITS];
- static buf_transtri_t *tri;
- static byte br, bg, bb, ba;
+ if (gl_delayfinish.integer)
+ {
+ VID_Finish ();
- if (m->index == NULL
- || !m->numtriangles
- || m->vertex == NULL
- || !m->numverts)
- return;
+ R_TimeReport("finish");
+ }
- if (!backendactive)
- Sys_Error("R_DrawMesh: called when backend is not active\n");
+ if (r_textureunits.integer > gl_textureunits)
+ Cvar_SetValueQuick(&r_textureunits, gl_textureunits);
+ if (r_textureunits.integer < 1)
+ Cvar_SetValueQuick(&r_textureunits, 1);
- if (m->transparent)
- {
- if (currenttransmesh >= max_meshs || (currenttranstriangle + m->numtriangles) > max_meshs || (currenttransvertex + m->numverts) > max_verts)
- {
- if (!transranout)
- {
- Con_Printf("R_DrawMesh: ran out of room for transparent meshs\n");
- transranout = true;
- }
- return;
- }
+ if (gl_combine.integer && (!gl_combine_extension || r_textureunits.integer < 2))
+ Cvar_SetValueQuick(&gl_combine, 0);
- vert = &buf_transvertex[currenttransvertex];
- fcolor = &buf_transfcolor[currenttransvertex];
- bcolor = &buf_transbcolor[currenttransvertex];
- for (i = 0;i < backendunits;i++)
- texcoord[i] = &buf_transtexcoord[i][currenttransvertex];
- }
- else
- {
- if (m->numtriangles > max_meshs || m->numverts > max_verts)
- {
- Con_Printf("R_DrawMesh: mesh too big for buffers\n");
- return;
- }
+ // lighting scale
+ r_colorscale = 1.0f / (float) (1 << v_overbrightbits.integer);
- if (currentmesh >= max_meshs || (currenttriangle + m->numtriangles) > max_batch || (currentvertex + m->numverts) > max_verts)
- R_Mesh_Render();
+ // lightmaps only
+ r_lightmapscalebit = v_overbrightbits.integer;
+ if (gl_combine.integer && r_textureunits.integer > 1)
+ r_lightmapscalebit += 2;
- vert = &buf_vertex[currentvertex];
- fcolor = &buf_fcolor[currentvertex];
- bcolor = &buf_bcolor[currentvertex];
- for (i = 0;i < backendunits;i++)
- texcoord[i] = &buf_texcoord[i][currentvertex];
- }
+ R_TimeReport("setup");
- // vertex array code is shared for transparent and opaque meshs
+ R_ClearScreen();
- 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];
- // push out farclip based on vertices encountered
- c = DotProduct(vert[i].v, vpn);
- if (meshfarclip < c)
- meshfarclip = c;
- }
+ R_TimeReport("clear");
+
+ if (scr_conlines < vid.conheight && cls.signon == SIGNONS)
+ R_RenderView();
- scaler = 1;
- if (m->blendfunc2 == GL_SRC_COLOR)
+ // draw 2D stuff
+ R_DrawQueue();
+
+ if (gl_delayfinish.integer)
{
- if (m->blendfunc1 == GL_DST_COLOR) // 2x modulate with framebuffer
- scaler *= 0.5f;
+ // 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();
}
else
{
- if (m->tex[0])
- {
- overbright = gl_combine.integer;
- if (overbright)
- scaler *= 0.25f;
- }
- if (lighthalf)
- scaler *= 0.5f;
+ VID_Finish ();
+
+ R_TimeReport("finish");
}
+}
+
+// utility functions
- if (floatcolors)
+void R_Mesh_CopyVertex3f(const float *vertex3f, int numverts)
+{
+#ifdef MESH_VAR
+ if (mesh_var)
{
- if (m->color)
- {
- 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];
- }
- }
- else
+ float *out = varray_vertex3f;
+ while (--numverts)
{
- 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;
- }
+ *out++ = *vertex3f++;
+ *out++ = *vertex3f++;
+ *out++ = *vertex3f++;
}
}
else
+#endif
+ memcpy(varray_vertex3f, vertex3f, numverts * sizeof(float[3]));
+}
+
+void R_Mesh_CopyTexCoord2f(int tmu, const float *texcoord2f, int numverts)
+{
+#ifdef MESH_VAR
+ if (mesh_var)
{
- if (m->color)
- {
- for (i = 0, in = m->color;i < m->numverts;i++, (int)in += m->colorstep)
- {
- // 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;
- }
- }
- else
+ float *out = varray_texcoord2f[tmu];
+ while (numverts--)
{
- c = in[0] * scaler + 32768.0f;j = (*((long *)&c) & 0x7FFFFF);if (j > 255) j = 255;br = (byte) j;
- c = in[1] * scaler + 32768.0f;j = (*((long *)&c) & 0x7FFFFF);if (j > 255) j = 255;bg = (byte) j;
- c = in[2] * scaler + 32768.0f;j = (*((long *)&c) & 0x7FFFFF);if (j > 255) j = 255;bb = (byte) j;
- c = in[3] + 32768.0f;j = (*((long *)&c) & 0x7FFFFF);if (j > 255) j = 255;ba = (byte) j;
- for (i = 0;i < m->numverts;i++)
- {
- bcolor[i].c[0] = br;
- bcolor[i].c[1] = bg;
- bcolor[i].c[2] = bb;
- bcolor[i].c[3] = ba;
- }
+ *out++ = *texcoord2f++;
+ *out++ = *texcoord2f++;
}
}
+ else
+#endif
+ memcpy(varray_texcoord2f[tmu], texcoord2f, numverts * sizeof(float[2]));
+}
- for (j = 0;j < MAX_TEXTUREUNITS && m->tex[j];j++)
+void R_Mesh_CopyColor4f(const float *color4f, int numverts)
+{
+#ifdef MESH_VAR
+ if (mesh_var)
{
- if (j >= backendunits)
- Sys_Error("R_DrawMesh: texture %i supplied when there are only %i texture units\n", j + 1, backendunits);
- for (i = 0, in = m->texcoords[j];i < m->numverts;i++, (int)in += m->texcoordstep[j])
+ float *out = varray_color4f;
+ while (numverts--)
{
- texcoord[j][i].t[0] = in[0];
- texcoord[j][i].t[1] = in[1];
+ *out++ = *color4f++;
+ *out++ = *color4f++;
+ *out++ = *color4f++;
+ *out++ = *color4f++;
}
}
- for (;j < backendunits;j++)
+ else
+#endif
+ memcpy(varray_color4f, color4f, numverts * sizeof(float[4]));
+}
+
+void R_ScrollTexCoord2f (float *out2f, const float *in2f, int numverts, float s, float t)
+{
+ while (numverts--)
{
- for (i = 0;i < m->numverts;i++)
- {
- texcoord[j][i].t[0] = 0;
- texcoord[j][i].t[1] = 0;
- }
+ *out2f++ = *in2f++ + s;
+ *out2f++ = *in2f++ + t;
}
+}
+
+//===========================================================================
+// vertex array caching subsystem
+//===========================================================================
- if (m->transparent)
+typedef struct rcachearraylink_s
+{
+ struct rcachearraylink_s *next, *prev;
+ struct rcachearrayitem_s *data;
+}
+rcachearraylink_t;
+
+typedef struct rcachearrayitem_s
+{
+ // the original request structure
+ rcachearrayrequest_t request;
+ // active
+ int active;
+ // offset into r_mesh_rcachedata
+ int offset;
+ // for linking this into the sequential list
+ rcachearraylink_t sequentiallink;
+ // for linking this into the lookup list
+ rcachearraylink_t hashlink;
+}
+rcachearrayitem_t;
+
+#define RCACHEARRAY_HASHSIZE 65536
+#define RCACHEARRAY_ITEMS 4096
+#define RCACHEARRAY_DEFAULTSIZE (4 << 20)
+
+// all active items are linked into this chain in sorted order
+static rcachearraylink_t r_mesh_rcachesequentialchain;
+// all inactive items are linked into this chain in unknown order
+static rcachearraylink_t r_mesh_rcachefreechain;
+// all active items are also linked into these chains (using their hashlink)
+static rcachearraylink_t r_mesh_rcachechain[RCACHEARRAY_HASHSIZE];
+
+// all items are stored here, whether active or inactive
+static rcachearrayitem_t r_mesh_rcacheitems[RCACHEARRAY_ITEMS];
+
+// size of data buffer
+static int r_mesh_rcachedata_size = RCACHEARRAY_DEFAULTSIZE;
+// data buffer
+static qbyte r_mesh_rcachedata[RCACHEARRAY_DEFAULTSIZE];
+
+// current state
+static int r_mesh_rcachedata_offset;
+static rcachearraylink_t *r_mesh_rcachesequentialchain_current;
+
+static void R_Mesh_CacheArray_Startup(void)
+{
+ int i;
+ rcachearraylink_t *l;
+ // prepare all the linked lists
+ l = &r_mesh_rcachesequentialchain;l->next = l->prev = l;l->data = NULL;
+ l = &r_mesh_rcachefreechain;l->next = l->prev = l;l->data = NULL;
+ memset(&r_mesh_rcachechain, 0, sizeof(r_mesh_rcachechain));
+ for (i = 0;i < RCACHEARRAY_HASHSIZE;i++)
{
- // transmesh is only for storage of tranparent 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;
- 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;
+ l = &r_mesh_rcachechain[i];
+ l->next = l->prev = l;
+ l->data = NULL;
+ }
+ memset(&r_mesh_rcacheitems, 0, sizeof(r_mesh_rcacheitems));
+ for (i = 0;i < RCACHEARRAY_ITEMS;i++)
+ {
+ r_mesh_rcacheitems[i].hashlink.data = r_mesh_rcacheitems[i].sequentiallink.data = &r_mesh_rcacheitems[i];
+ l = &r_mesh_rcacheitems[i].sequentiallink;
+ l->next = &r_mesh_rcachefreechain;
+ l->prev = l->next->prev;
+ l->next->prev = l->prev->next = l;
+ }
+ // clear other state
+ r_mesh_rcachedata_offset = 0;
+ r_mesh_rcachesequentialchain_current = &r_mesh_rcachesequentialchain;
+}
+
+static void R_Mesh_CacheArray_Shutdown(void)
+{
+}
+
+/*
+static void R_Mesh_CacheArray_ValidateState(int num)
+{
+ rcachearraylink_t *l, *lhead;
+ lhead = &r_mesh_rcachesequentialchain;
+ if (r_mesh_rcachesequentialchain_current == lhead)
+ return;
+ for (l = lhead->next;l != lhead;l = l->next)
+ if (r_mesh_rcachesequentialchain_current == l)
+ return;
+ Sys_Error("%i", num);
+}
+*/
+
+int R_Mesh_CacheArray(rcachearrayrequest_t *r)
+{
+ rcachearraylink_t *l, *lhead, *lnext;
+ rcachearrayitem_t *d;
+ int hashindex, offset, offsetend;
+
+ //R_Mesh_CacheArray_ValidateState(3);
+ // calculate a hashindex to choose a cache chain
+ r->data = NULL;
+ hashindex = CRC_Block((void *)r, sizeof(*r)) % RCACHEARRAY_HASHSIZE;
- // transparent meshs are broken up into individual triangles which can
- // be sorted by depth
- index = m->index;
- for (i = 0;i < m->numtriangles;i++)
+ // is it already cached?
+ for (lhead = &r_mesh_rcachechain[hashindex], l = lhead->next;l != lhead;l = l->next)
+ {
+ if (!memcmp(&l->data->request, r, sizeof(l->data->request)))
{
- tri = &buf_transtri[currenttranstriangle++];
- tri->mesh = mesh;
- tri->index[0] = *index++ + currenttransvertex;
- tri->index[1] = *index++ + currenttransvertex;
- tri->index[2] = *index++ + currenttransvertex;
+ // we have it cached already
+ r->data = r_mesh_rcachedata + l->data->offset;
+ return false;
}
- currenttransvertex += m->numverts;
}
- else
+
+ // we need to add a new cache item, this means finding a place for the new
+ // data and making sure we have a free item available, lots of work...
+
+ // check if buffer needs to wrap
+ if (r_mesh_rcachedata_offset + r->data_size > r_mesh_rcachedata_size)
{
- mesh = &buf_mesh[currentmesh++];
- mesh->blendfunc1 = m->blendfunc1;
- mesh->blendfunc2 = m->blendfunc2;
- mesh->depthmask = (m->blendfunc2 == GL_ZERO || m->depthwrite);
- mesh->firsttriangle = currenttriangle;
- mesh->triangles = m->numtriangles;
- j = -1;
- for (i = 0;i < backendunits;i++)
+ /*
+ if (r->data_size * 10 > r_mesh_rcachedata_size)
{
- 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;
+ // realloc whole cache
}
- if (overbright && j >= 0)
- mesh->texturergbscale[j] = 4;
-
- // opaque meshs are rendered directly
- index = (int *)&buf_tri[currenttriangle];
- for (i = 0;i < m->numtriangles * 3;i++)
- index[i] = m->index[i] + currentvertex;
- currenttriangle += m->numtriangles;
- currentvertex += m->numverts;
+ */
+ // reset back to start
+ r_mesh_rcachedata_offset = 0;
+ r_mesh_rcachesequentialchain_current = &r_mesh_rcachesequentialchain;
}
+ offset = r_mesh_rcachedata_offset;
+ r_mesh_rcachedata_offset += r->data_size;
+ offsetend = r_mesh_rcachedata_offset;
+ //R_Mesh_CacheArray_ValidateState(4);
- c_meshtris += m->numtriangles;
-}
+ /*
+ {
+ int n;
+ for (lhead = &r_mesh_rcachesequentialchain, l = lhead->next, n = 0;l != lhead;l = l->next, n++);
+ Con_Printf("R_Mesh_CacheArray: new data range %i:%i, %i items are already linked\n", offset, offsetend, n);
+ }
+ */
-void R_Mesh_DrawPolygon(rmeshinfo_t *m, int numverts)
-{
- m->index = polyindexarray;
- m->numverts = numverts;
- m->numtriangles = numverts - 2;
- if (m->numtriangles < 1)
+ // make room for the new data (remove old items)
+ lhead = &r_mesh_rcachesequentialchain;
+ l = r_mesh_rcachesequentialchain_current;
+ if (l == lhead)
+ l = l->next;
+ while (l != lhead && l->data->offset < offsetend && l->data->offset + l->data->request.data_size > offset)
{
- Con_Printf("R_Mesh_DrawPolygon: invalid vertex count\n");
- return;
+ //r_mesh_rcachesequentialchain_current = l;
+ //R_Mesh_CacheArray_ValidateState(8);
+ lnext = l->next;
+ // if at the end of the chain, wrap around
+ if (lnext == lhead)
+ lnext = lnext->next;
+ //r_mesh_rcachesequentialchain_current = lnext;
+ //R_Mesh_CacheArray_ValidateState(10);
+
+ // unlink from sequential chain
+ l->next->prev = l->prev;
+ l->prev->next = l->next;
+ //R_Mesh_CacheArray_ValidateState(11);
+ // link into free chain
+ l->next = &r_mesh_rcachefreechain;
+ l->prev = l->next->prev;
+ l->next->prev = l->prev->next = l;
+ //R_Mesh_CacheArray_ValidateState(12);
+
+ l = &l->data->hashlink;
+ // unlink from hash chain
+ l->next->prev = l->prev;
+ l->prev->next = l->next;
+
+ l = lnext;
+ //r_mesh_rcachesequentialchain_current = l;
+ //R_Mesh_CacheArray_ValidateState(9);
}
- if (m->numtriangles >= 256)
+ //r_mesh_rcachesequentialchain_current = l;
+ //R_Mesh_CacheArray_ValidateState(5);
+ // gobble an extra item if we have no free items available
+ if (r_mesh_rcachefreechain.next == &r_mesh_rcachefreechain)
{
- Con_Printf("R_Mesh_DrawPolygon: only up to 256 triangles (258 verts) supported\n");
- return;
+ lnext = l->next;
+
+ // unlink from sequential chain
+ l->next->prev = l->prev;
+ l->prev->next = l->next;
+ // link into free chain
+ l->next = &r_mesh_rcachefreechain;
+ l->prev = l->next->prev;
+ l->next->prev = l->prev->next = l;
+
+ l = &l->data->hashlink;
+ // unlink from hash chain
+ l->next->prev = l->prev;
+ l->prev->next = l->next;
+
+ l = lnext;
+ }
+ r_mesh_rcachesequentialchain_current = l;
+ //R_Mesh_CacheArray_ValidateState(6);
+
+ // now take an item from the free chain
+ l = r_mesh_rcachefreechain.next;
+ // set it up
+ d = l->data;
+ d->request = *r;
+ d->offset = offset;
+ // unlink
+ l->next->prev = l->prev;
+ l->prev->next = l->next;
+ // relink to sequential
+ l->next = r_mesh_rcachesequentialchain_current->prev;
+ l->prev = l->next->prev;
+ while (l->next->data && l->data && l->next->data->offset <= d->offset)
+ {
+ //Con_Printf(">\n");
+ l->next = l->next->next;
+ l->prev = l->prev->next;
+ }
+ while (l->prev->data && l->data && l->prev->data->offset >= d->offset)
+ {
+ //Con_Printf("<\n");
+ l->prev = l->prev->prev;
+ l->next = l->next->prev;
}
- R_Mesh_Draw(m);
+ l->next->prev = l->prev->next = l;
+ // also link into hash chain
+ l = &l->data->hashlink;
+ l->next = &r_mesh_rcachechain[hashindex];
+ l->prev = l->next->prev;
+ l->prev->next = l;
+ l->next->prev = l->prev->next = l;
+
+
+ //r_mesh_rcachesequentialchain_current = d->sequentiallink.next;
+
+ //R_Mesh_CacheArray_ValidateState(7);
+ // and finally set the data pointer
+ r->data = r_mesh_rcachedata + d->offset;
+ // and tell the caller to fill the array
+ return true;
}
+
projects / xonotic / darkplaces.git / blobdiff