"#endif // FRAGMENT_SHADER\n"
;
-#define SHADERPERMUTATION_COLORMAPPING (1<<0) // indicates this is a colormapped skin
-#define SHADERPERMUTATION_CONTRASTBOOST (1<<1) // r_glsl_contrastboost boosts the contrast at low color levels (similar to gamma)
-#define SHADERPERMUTATION_FOG (1<<2) // tint the color by fog color or black if using additive blend mode
-#define SHADERPERMUTATION_CUBEFILTER (1<<3) // (lightsource) use cubemap light filter
-#define SHADERPERMUTATION_GLOW (1<<4) // (lightmap) blend in an additive glow texture
-#define SHADERPERMUTATION_DIFFUSE (1<<5) // (lightsource) whether to use directional shading
-#define SHADERPERMUTATION_SPECULAR (1<<6) // (lightsource or deluxemapping) render specular effects
-#define SHADERPERMUTATION_REFLECTION (1<<7) // normalmap-perturbed reflection of the scene infront of the surface, preformed as an overlay on the surface
-#define SHADERPERMUTATION_OFFSETMAPPING (1<<8) // adjust texcoords to roughly simulate a displacement mapped surface
-#define SHADERPERMUTATION_OFFSETMAPPING_RELIEFMAPPING (1<<9) // adjust texcoords to accurately simulate a displacement mapped surface (requires OFFSETMAPPING to also be set!)
-#define SHADERPERMUTATION_MODEBASE (1<<10) // multiplier for the SHADERMODE_ values to get a valid index
+typedef struct shaderpermutationinfo_s
+{
+ const char *pretext;
+ const char *name;
+}
+shaderpermutationinfo_t;
+
+typedef struct shadermodeinfo_s
+{
+ const char *vertexfilename;
+ const char *geometryfilename;
+ const char *fragmentfilename;
+ const char *pretext;
+ const char *name;
+ int allowedpermutations;
+}
+shadermodeinfo_t;
+
+typedef enum shaderpermutation_e
+{
+ SHADERPERMUTATION_COLORMAPPING = 1<<0, // indicates this is a colormapped skin
+ SHADERPERMUTATION_CONTRASTBOOST = 1<<1, // r_glsl_contrastboost boosts the contrast at low color levels (similar to gamma)
+ SHADERPERMUTATION_FOG = 1<<2, // tint the color by fog color or black if using additive blend mode
+ SHADERPERMUTATION_CUBEFILTER = 1<<3, // (lightsource) use cubemap light filter
+ SHADERPERMUTATION_GLOW = 1<<4, // (lightmap) blend in an additive glow texture
+ SHADERPERMUTATION_DIFFUSE = 1<<5, // (lightsource) whether to use directional shading
+ SHADERPERMUTATION_SPECULAR = 1<<6, // (lightsource or deluxemapping) render specular effects
+ SHADERPERMUTATION_REFLECTION = 1<<7, // normalmap-perturbed reflection of the scene infront of the surface, preformed as an overlay on the surface
+ SHADERPERMUTATION_OFFSETMAPPING = 1<<8, // adjust texcoords to roughly simulate a displacement mapped surface
+ SHADERPERMUTATION_OFFSETMAPPING_RELIEFMAPPING = 1<<9, // adjust texcoords to accurately simulate a displacement mapped surface (requires OFFSETMAPPING to also be set!)
+ SHADERPERMUTATION_LIMIT = 1<<10, // size of permutations array
+ SHADERPERMUTATION_COUNT = 10 // size of shaderpermutationinfo array
+}
+shaderpermutation_t;
// NOTE: MUST MATCH ORDER OF SHADERPERMUTATION_* DEFINES!
-const char *shaderpermutationinfo[][2] =
+shaderpermutationinfo_t shaderpermutationinfo[SHADERPERMUTATION_COUNT] =
{
{"#define USECOLORMAPPING\n", " colormapping"},
{"#define USECONTRASTBOOST\n", " contrastboost"},
{"#define USEREFLECTION\n", " reflection"},
{"#define USEOFFSETMAPPING\n", " offsetmapping"},
{"#define USEOFFSETMAPPING_RELIEFMAPPING\n", " reliefmapping"},
- {NULL, NULL}
};
// this enum is multiplied by SHADERPERMUTATION_MODEBASE
shadermode_t;
// NOTE: MUST MATCH ORDER OF SHADERMODE_* ENUMS!
-const char *shadermodeinfo[][2] =
+shadermodeinfo_t shadermodeinfo[SHADERMODE_COUNT] =
{
- {"#define MODE_FLATCOLOR\n", " flatcolor"},
- {"#define MODE_VERTEXCOLOR\n", " vertexcolor"},
- {"#define MODE_LIGHTMAP\n", " lightmap"},
- {"#define MODE_LIGHTDIRECTIONMAP_MODELSPACE\n", " lightdirectionmap_modelspace"},
- {"#define MODE_LIGHTDIRECTIONMAP_TANGENTSPACE\n", " lightdirectionmap_tangentspace"},
- {"#define MODE_LIGHTDIRECTION\n", " lightdirection"},
- {"#define MODE_LIGHTSOURCE\n", " lightsource"},
- {"#define MODE_REFRACTION\n", " refraction"},
- {"#define MODE_WATER\n", " water"},
- {NULL, NULL}
+ {"glsl/default.glsl", NULL, "glsl/default.glsl", "#define MODE_FLATCOLOR\n", " flatcolor", SHADERPERMUTATION_COLORMAPPING | SHADERPERMUTATION_CONTRASTBOOST | SHADERPERMUTATION_FOG | SHADERPERMUTATION_GLOW | SHADERPERMUTATION_DIFFUSE | SHADERPERMUTATION_SPECULAR | SHADERPERMUTATION_REFLECTION | SHADERPERMUTATION_OFFSETMAPPING | SHADERPERMUTATION_OFFSETMAPPING_RELIEFMAPPING},
+ {"glsl/default.glsl", NULL, "glsl/default.glsl", "#define MODE_VERTEXCOLOR\n", " vertexcolor", SHADERPERMUTATION_COLORMAPPING | SHADERPERMUTATION_CONTRASTBOOST | SHADERPERMUTATION_FOG | SHADERPERMUTATION_GLOW | SHADERPERMUTATION_DIFFUSE | SHADERPERMUTATION_SPECULAR | SHADERPERMUTATION_REFLECTION | SHADERPERMUTATION_OFFSETMAPPING | SHADERPERMUTATION_OFFSETMAPPING_RELIEFMAPPING},
+ {"glsl/default.glsl", NULL, "glsl/default.glsl", "#define MODE_LIGHTMAP\n", " lightmap", SHADERPERMUTATION_COLORMAPPING | SHADERPERMUTATION_CONTRASTBOOST | SHADERPERMUTATION_FOG | SHADERPERMUTATION_GLOW | SHADERPERMUTATION_DIFFUSE | SHADERPERMUTATION_SPECULAR | SHADERPERMUTATION_REFLECTION | SHADERPERMUTATION_OFFSETMAPPING | SHADERPERMUTATION_OFFSETMAPPING_RELIEFMAPPING},
+ {"glsl/default.glsl", NULL, "glsl/default.glsl", "#define MODE_LIGHTDIRECTIONMAP_MODELSPACE\n", " lightdirectionmap_modelspace", SHADERPERMUTATION_COLORMAPPING | SHADERPERMUTATION_CONTRASTBOOST | SHADERPERMUTATION_FOG | SHADERPERMUTATION_GLOW | SHADERPERMUTATION_DIFFUSE | SHADERPERMUTATION_SPECULAR | SHADERPERMUTATION_REFLECTION | SHADERPERMUTATION_OFFSETMAPPING | SHADERPERMUTATION_OFFSETMAPPING_RELIEFMAPPING},
+ {"glsl/default.glsl", NULL, "glsl/default.glsl", "#define MODE_LIGHTDIRECTIONMAP_TANGENTSPACE\n", " lightdirectionmap_tangentspace", SHADERPERMUTATION_COLORMAPPING | SHADERPERMUTATION_CONTRASTBOOST | SHADERPERMUTATION_FOG | SHADERPERMUTATION_GLOW | SHADERPERMUTATION_DIFFUSE | SHADERPERMUTATION_SPECULAR | SHADERPERMUTATION_REFLECTION | SHADERPERMUTATION_OFFSETMAPPING | SHADERPERMUTATION_OFFSETMAPPING_RELIEFMAPPING},
+ {"glsl/default.glsl", NULL, "glsl/default.glsl", "#define MODE_LIGHTDIRECTION\n", " lightdirection", SHADERPERMUTATION_COLORMAPPING | SHADERPERMUTATION_CONTRASTBOOST | SHADERPERMUTATION_FOG | SHADERPERMUTATION_GLOW | SHADERPERMUTATION_DIFFUSE | SHADERPERMUTATION_SPECULAR | SHADERPERMUTATION_REFLECTION | SHADERPERMUTATION_OFFSETMAPPING | SHADERPERMUTATION_OFFSETMAPPING_RELIEFMAPPING},
+ {"glsl/default.glsl", NULL, "glsl/default.glsl", "#define MODE_LIGHTSOURCE\n", " lightsource", SHADERPERMUTATION_COLORMAPPING | SHADERPERMUTATION_CONTRASTBOOST | SHADERPERMUTATION_FOG | SHADERPERMUTATION_CUBEFILTER | SHADERPERMUTATION_DIFFUSE | SHADERPERMUTATION_SPECULAR | SHADERPERMUTATION_OFFSETMAPPING | SHADERPERMUTATION_OFFSETMAPPING_RELIEFMAPPING},
+ {"glsl/default.glsl", NULL, "glsl/default.glsl", "#define MODE_REFRACTION\n", " refraction", SHADERPERMUTATION_OFFSETMAPPING | SHADERPERMUTATION_OFFSETMAPPING_RELIEFMAPPING},
+ {"glsl/default.glsl", NULL, "glsl/default.glsl", "#define MODE_WATER\n", " water", SHADERPERMUTATION_OFFSETMAPPING | SHADERPERMUTATION_OFFSETMAPPING_RELIEFMAPPING},
};
-#define SHADERPERMUTATION_INDICES (SHADERPERMUTATION_MODEBASE * SHADERMODE_COUNT)
-
typedef struct r_glsl_permutation_s
{
// indicates if we have tried compiling this permutation already
r_glsl_permutation_t;
// information about each possible shader permutation
-r_glsl_permutation_t r_glsl_permutations[SHADERPERMUTATION_INDICES];
+r_glsl_permutation_t r_glsl_permutations[SHADERMODE_COUNT][SHADERPERMUTATION_LIMIT];
// currently selected permutation
r_glsl_permutation_t *r_glsl_permutation;
-// these are additional flags used only by R_GLSL_CompilePermutation
-#define SHADERTYPE_USES_VERTEXSHADER (1<<0)
-#define SHADERTYPE_USES_GEOMETRYSHADER (1<<1)
-#define SHADERTYPE_USES_FRAGMENTSHADER (1<<2)
+static char *R_GLSL_GetText(const char *filename, qboolean printfromdisknotice)
+{
+ char *shaderstring;
+ if (!filename || !filename[0])
+ return NULL;
+ shaderstring = (char *)FS_LoadFile(filename, r_main_mempool, false, NULL);
+ if (shaderstring)
+ {
+ if (printfromdisknotice)
+ Con_DPrint("from disk... ");
+ return shaderstring;
+ }
+ else if (!strcmp(filename, "glsl/default.glsl"))
+ {
+ shaderstring = Mem_Alloc(r_main_mempool, strlen(builtinshaderstring) + 1);
+ memcpy(shaderstring, builtinshaderstring, strlen(builtinshaderstring) + 1);
+ }
+ return shaderstring;
+}
-static void R_GLSL_CompilePermutation(const char *filename, int permutation, int shadertype)
+static void R_GLSL_CompilePermutation(shadermode_t mode, shaderpermutation_t permutation)
{
int i;
- qboolean shaderfound;
- r_glsl_permutation_t *p = r_glsl_permutations + permutation;
- int vertstrings_count;
- int geomstrings_count;
- int fragstrings_count;
- char *shaderstring;
- const char *vertstrings_list[32+1];
- const char *geomstrings_list[32+1];
- const char *fragstrings_list[32+1];
+ shadermodeinfo_t *modeinfo = shadermodeinfo + mode;
+ r_glsl_permutation_t *p = &r_glsl_permutations[mode][permutation];
+ int vertstrings_count = 0;
+ int geomstrings_count = 0;
+ int fragstrings_count = 0;
+ char *vertexstring, *geometrystring, *fragmentstring;
+ const char *vertstrings_list[32+3];
+ const char *geomstrings_list[32+3];
+ const char *fragstrings_list[32+3];
char permutationname[256];
+
if (p->compiled)
return;
p->compiled = true;
p->program = 0;
- vertstrings_list[0] = "#define VERTEX_SHADER\n";
- geomstrings_list[0] = "#define GEOMETRY_SHADER\n";
- fragstrings_list[0] = "#define FRAGMENT_SHADER\n";
- vertstrings_count = 1;
- geomstrings_count = 1;
- fragstrings_count = 1;
+
permutationname[0] = 0;
- i = permutation / SHADERPERMUTATION_MODEBASE;
- vertstrings_list[vertstrings_count++] = shadermodeinfo[i][0];
- geomstrings_list[geomstrings_count++] = shadermodeinfo[i][0];
- fragstrings_list[fragstrings_count++] = shadermodeinfo[i][0];
- strlcat(permutationname, shadermodeinfo[i][1], sizeof(permutationname));
- for (i = 0;shaderpermutationinfo[i][0];i++)
+ vertexstring = R_GLSL_GetText(modeinfo->vertexfilename, true);
+ geometrystring = R_GLSL_GetText(modeinfo->geometryfilename, false);
+ fragmentstring = R_GLSL_GetText(modeinfo->fragmentfilename, false);
+
+ strlcat(permutationname, shadermodeinfo[mode].vertexfilename, sizeof(permutationname));
+
+ // the first pretext is which type of shader to compile as
+ // (later these will all be bound together as a program object)
+ vertstrings_list[vertstrings_count++] = "#define VERTEX_SHADER\n";
+ geomstrings_list[geomstrings_count++] = "#define GEOMETRY_SHADER\n";
+ fragstrings_list[fragstrings_count++] = "#define FRAGMENT_SHADER\n";
+
+ // the second pretext is the mode (for example a light source)
+ vertstrings_list[vertstrings_count++] = shadermodeinfo[mode].pretext;
+ geomstrings_list[geomstrings_count++] = shadermodeinfo[mode].pretext;
+ fragstrings_list[fragstrings_count++] = shadermodeinfo[mode].pretext;
+ strlcat(permutationname, modeinfo->name, sizeof(permutationname));
+
+ // now add all the permutation pretexts
+ for (i = 0;i < SHADERPERMUTATION_COUNT;i++)
{
if (permutation & (1<<i))
{
- vertstrings_list[vertstrings_count++] = shaderpermutationinfo[i][0];
- geomstrings_list[geomstrings_count++] = shaderpermutationinfo[i][0];
- fragstrings_list[fragstrings_count++] = shaderpermutationinfo[i][0];
- strlcat(permutationname, shaderpermutationinfo[i][1], sizeof(permutationname));
+ vertstrings_list[vertstrings_count++] = shaderpermutationinfo[i].pretext;
+ geomstrings_list[geomstrings_count++] = shaderpermutationinfo[i].pretext;
+ fragstrings_list[fragstrings_count++] = shaderpermutationinfo[i].pretext;
+ strlcat(permutationname, shaderpermutationinfo[i].name, sizeof(permutationname));
}
else
{
fragstrings_list[fragstrings_count++] = "\n";
}
}
- shaderstring = (char *)FS_LoadFile(filename, r_main_mempool, false, NULL);
- shaderfound = false;
- if (shaderstring)
- {
- Con_DPrint("from disk... ");
- vertstrings_list[vertstrings_count++] = shaderstring;
- geomstrings_list[geomstrings_count++] = shaderstring;
- fragstrings_list[fragstrings_count++] = shaderstring;
- shaderfound = true;
- }
- else if (!strcmp(filename, "glsl/default.glsl"))
- {
- vertstrings_list[vertstrings_count++] = builtinshaderstring;
- geomstrings_list[geomstrings_count++] = builtinshaderstring;
- fragstrings_list[fragstrings_count++] = builtinshaderstring;
- shaderfound = true;
- }
- // clear any lists that are not needed by this shader
- if (!(shadertype & SHADERTYPE_USES_VERTEXSHADER))
+
+ // now append the shader text itself
+ vertstrings_list[vertstrings_count++] = vertexstring;
+ geomstrings_list[geomstrings_count++] = geometrystring;
+ fragstrings_list[fragstrings_count++] = fragmentstring;
+
+ // if any sources were NULL, clear the respective list
+ if (!vertexstring)
vertstrings_count = 0;
- if (!(shadertype & SHADERTYPE_USES_GEOMETRYSHADER))
+ if (!geometrystring)
geomstrings_count = 0;
- if (!(shadertype & SHADERTYPE_USES_FRAGMENTSHADER))
+ if (!fragmentstring)
fragstrings_count = 0;
+
// compile the shader program
- if (shaderfound && vertstrings_count + geomstrings_count + fragstrings_count)
+ if (vertstrings_count + geomstrings_count + fragstrings_count)
p->program = GL_Backend_CompileProgram(vertstrings_count, vertstrings_list, geomstrings_count, geomstrings_list, fragstrings_count, fragstrings_list);
if (p->program)
{
CHECKGLERROR
qglUseProgramObjectARB(0);CHECKGLERROR
if (developer.integer)
- Con_Printf("GLSL shader %s :%s compiled.\n", filename, permutationname);
+ Con_Printf("GLSL shader %s compiled.\n", permutationname);
}
else
- {
- if (developer.integer)
- Con_Printf("GLSL shader %s :%s failed! source code line offset for above errors is %i.\n", permutationname, filename, -(vertstrings_count - 1));
- else
- Con_Printf("GLSL shader %s :%s failed! some features may not work properly.\n", permutationname, filename);
- }
- if (shaderstring)
- Mem_Free(shaderstring);
+ Con_Printf("GLSL shader %s failed! some features may not work properly.\n", permutationname);
+
+ // free the strings
+ if (vertexstring)
+ Mem_Free(vertexstring);
+ if (geometrystring)
+ Mem_Free(geometrystring);
+ if (fragmentstring)
+ Mem_Free(fragmentstring);
}
void R_GLSL_Restart_f(void)
{
- int i;
- for (i = 0;i < SHADERPERMUTATION_INDICES;i++)
- if (r_glsl_permutations[i].program)
- GL_Backend_FreeProgram(r_glsl_permutations[i].program);
+ shadermode_t mode;
+ shaderpermutation_t permutation;
+ for (mode = 0;mode < SHADERMODE_COUNT;mode++)
+ for (permutation = 0;permutation < SHADERPERMUTATION_LIMIT;permutation++)
+ if (r_glsl_permutations[mode][permutation].program)
+ GL_Backend_FreeProgram(r_glsl_permutations[mode][permutation].program);
memset(r_glsl_permutations, 0, sizeof(r_glsl_permutations));
}
FS_Print(file, "// The engine may define the following macros:\n");
FS_Print(file, "// #define VERTEX_SHADER\n// #define GEOMETRY_SHADER\n// #define FRAGMENT_SHADER\n");
- for (i = 0;shadermodeinfo[i][0];i++)
- FS_Printf(file, "// %s", shadermodeinfo[i][0]);
- for (i = 0;shaderpermutationinfo[i][0];i++)
- FS_Printf(file, "// %s", shaderpermutationinfo[i][0]);
+ for (i = 0;i < SHADERMODE_COUNT;i++)
+ FS_Printf(file, "// %s", shadermodeinfo[i].pretext);
+ for (i = 0;i < SHADERPERMUTATION_LIMIT;i++)
+ FS_Printf(file, "// %s", shaderpermutationinfo[i].pretext);
FS_Print(file, "\n");
FS_Print(file, builtinshaderstring);
FS_Close(file);
// combination of texture, entity, light source, and fogging, only use the
// minimum features necessary to avoid wasting rendering time in the
// fragment shader on features that are not being used
- const char *shaderfilename = NULL;
unsigned int permutation = 0;
- unsigned int shadertype = 0;
shadermode_t mode = 0;
r_glsl_permutation = NULL;
- shaderfilename = "glsl/default.glsl";
- shadertype = SHADERTYPE_USES_VERTEXSHADER | SHADERTYPE_USES_FRAGMENTSHADER;
// TODO: implement geometry-shader based shadow volumes someday
if (r_glsl_offsetmapping.integer)
{
if (rsurface.texture->currentmaterialflags & MATERIALFLAG_REFLECTION)
permutation |= SHADERPERMUTATION_REFLECTION;
}
- permutation |= mode * SHADERPERMUTATION_MODEBASE;
- if (!r_glsl_permutations[permutation].program)
+ r_glsl_permutation = &r_glsl_permutations[mode][permutation];
+ if (!r_glsl_permutation->program)
{
- if (!r_glsl_permutations[permutation].compiled)
- R_GLSL_CompilePermutation(shaderfilename, permutation, shadertype);
- if (!r_glsl_permutations[permutation].program)
+ if (!r_glsl_permutation->compiled)
+ R_GLSL_CompilePermutation(mode, permutation);
+ if (!r_glsl_permutation->program)
{
// remove features until we find a valid permutation
- unsigned int i;
- for (i = (SHADERPERMUTATION_MODEBASE >> 1);;i>>=1)
+ int i;
+ for (i = 0;i < SHADERPERMUTATION_COUNT;i++)
{
- if (!i)
- {
- Con_Printf("OpenGL 2.0 shaders disabled - unable to find a working shader permutation fallback on this driver (set r_glsl 1 if you want to try again)\n");
- Cvar_SetValueQuick(&r_glsl, 0);
- return 0; // no bit left to clear
- }
// reduce i more quickly whenever it would not remove any bits
- if (!(permutation & i))
+ int j = 1<<(SHADERPERMUTATION_COUNT-1-i);
+ if (!(permutation & j))
continue;
- permutation &= ~i;
- if (!r_glsl_permutations[permutation].compiled)
- R_GLSL_CompilePermutation(shaderfilename, permutation, shadertype);
- if (r_glsl_permutations[permutation].program)
+ permutation -= j;
+ r_glsl_permutation = &r_glsl_permutations[mode][permutation];
+ if (!r_glsl_permutation->compiled)
+ R_GLSL_CompilePermutation(mode, permutation);
+ if (r_glsl_permutation->program)
break;
}
+ if (i >= SHADERPERMUTATION_COUNT)
+ {
+ Con_Printf("OpenGL 2.0 shaders disabled - unable to find a working shader permutation fallback on this driver (set r_glsl 1 if you want to try again)\n");
+ Cvar_SetValueQuick(&r_glsl, 0);
+ return 0; // no bit left to clear
+ }
}
}
- r_glsl_permutation = r_glsl_permutations + permutation;
CHECKGLERROR
qglUseProgramObjectARB(r_glsl_permutation->program);CHECKGLERROR
if (mode == SHADERMODE_LIGHTSOURCE)
projects / xonotic / darkplaces.git / commitdiff