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fteqw/engine/shaders/generatebuiltinsl.c
Spoike eccfe6b560 d3d11: stripped the reflection stuff from the d3d11 renderer. we'll do that stuff explicitly instead of having to deal with microsoft's api. its just more reliable. 
openal: doppler now applies to openal more consistently.
vulkan: vk_loadglsl cvar enables vk_nv_glsl_shader, with support for existing glsl shaders (still no permutations for now). needs !!samps stuff.
vulkan: r_renderscale now partly works. r_fxaa also works under specific circumstances. needs more work. still no bloom or projections stuff.
menu_download: got a few tweaks to improve it, including zips. I still want to handle engine updates with this stuff, but that can wait for later.

git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@5008 fc73d0e0-1445-4013-8a0c-d673dee63da5
2016-07-26 11:47:59 +00:00

561 lines
17 KiB
C
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#include <stdio.h>
#include <string.h>
#include <stdlib.h>
char shaders[][64] =
{
"fixedemu",
"altwater",
"bloom_blur",
"bloom_filter",
"bloom_final",
"colourtint",
"crepuscular_opaque",
"crepuscular_rays",
"crepuscular_sky",
"depthonly",
"default2d",
"defaultadditivesprite",
"defaultskin",
"defaultsky",
"defaultfill",
"defaultsprite",
"defaultwall",
"defaultwarp",
"defaultgammacb",
"drawflat_wall",
"lpp_depthnorm",
"lpp_light",
"lpp_wall",
"postproc_fisheye",
"postproc_panorama",
"postproc_laea",
"postproc_stereographic",
"postproc_equirectangular",
"fxaa",
"underwaterwarp",
"menutint",
"terrain",
"rtlight",
""
};
void dumpprogstring(FILE *out, FILE *src)
{
int j;
char line[1024];
while(fgets(line, sizeof(line), src))
{
j = 0;
while (line[j] == ' ' || line[j] == '\t')
j++;
if ((line[j] == '/' && line[j] == '/') || line[j] == '\r' || line[j] == '\n')
{
while (line[j])
fputc(line[j++], out);
}
else
{
fputc('\"', out);
while (line[j] && line[j] != '\r' && line[j] != '\n')
{
if (line[j] == '\t')
fputc(' ', out);
else if (line[j] == '\"')
{
fputc('\\', out);
fputc(line[j], out);
}
else
fputc(line[j], out);
j++;
}
fputs("\\n\"\n", out);
}
}
fflush(out);
}
void dumpprogblob(FILE *out, unsigned char *buf, unsigned int size)
{
size_t totallen, i, linelen;
totallen = 0;
linelen = 32;
fflush(out);
fprintf(out, "\"");
for (i=0;i<size;i++)
{
fprintf(out, "\\x%02X",buf[i]);
if (i % linelen == linelen - 1)
fprintf(out, "\"\n\"");
}
fprintf(out, "\"");
fflush(out);
}
struct blobheader
{
unsigned char blobmagic[4]; //\xffSPV
unsigned int blobversion;
unsigned int defaulttextures; //s_diffuse etc flags
unsigned int numtextures; //s_t0 count
unsigned int permutations; //
unsigned int cvarsoffset; //double-null terminated string. I,XYZW prefixes
unsigned int cvarslength;
unsigned int vertoffset;
unsigned int vertlength;
unsigned int fragoffset;
unsigned int fraglength;
};
void generateprogsblob(struct blobheader *prototype, FILE *out, FILE *vert, FILE *frag)
{
struct blobheader *blob;
int fraglen, vertlen, blobsize, cvarlen;
cvarlen = prototype->cvarslength;
cvarlen = (cvarlen + 3) & ~3; //round up for padding.
fseek(vert, 0, SEEK_END);
fseek(frag, 0, SEEK_END);
vertlen = ftell(vert);
fraglen = ftell(frag);
fseek(vert, 0, SEEK_SET);
fseek(frag, 0, SEEK_SET);
blobsize = sizeof(*blob) + cvarlen + fraglen + vertlen;
blob = malloc(blobsize);
*blob = *prototype;
blob->cvarsoffset = sizeof(*blob);
blob->cvarslength = prototype->cvarslength; //unpadded length
blob->vertoffset = blob->cvarsoffset+cvarlen;
blob->vertlength = vertlen;
blob->fragoffset = blob->vertoffset+vertlen;
blob->fraglength = fraglen;
memcpy((char*)blob+blob->cvarsoffset, (char*)prototype+prototype->cvarsoffset, prototype->cvarslength);
fread((char*)blob+blob->vertoffset, blob->vertlength, 1, vert);
fread((char*)blob+blob->fragoffset, blob->fraglength, 1, frag);
dumpprogblob(out, (unsigned char*)blob, blobsize);
free(blob);
}
int generatevulkanblobs(struct blobheader *blob, size_t maxblobsize, char *fname)
{
char command[1024];
char glslname[256];
char tempname[256];
int inheader = 1;
int i;
unsigned short constid = 256; //first few are reserved.
const char *permutationnames[] =
{
"BUMP",
"FULLBRIGHT",
"UPPERLOWER",
"REFLECTCUBEMASK",
"SKELETAL",
"FOG",
"FRAMEBLEND",
"LIGHTSTYLED",
NULL
};
snprintf(glslname, sizeof(glslname), "vulkan/%s.glsl", fname);
snprintf(tempname, sizeof(tempname), "vulkan/%s.tmp", fname);
// snprintf(vertname, sizeof(vertname), "vulkan/%s.vert", fname);
// snprintf(fragname, sizeof(fragname), "vulkan/%s.frag", fname);
memcpy(blob->blobmagic, "\xffSPV", 4);
blob->blobversion = 1;
blob->defaulttextures = 0;
blob->numtextures = 0;
blob->permutations = 0;
blob->cvarsoffset = sizeof(*blob);
blob->cvarslength = 0;
FILE *glsl = fopen(glslname, "rt");
if (!glsl)
return 0;
FILE *temp = fopen(tempname, "wt");
while(fgets(command, sizeof(command), glsl))
{
if (inheader && !strncmp(command, "!!", 2))
{
if (!strncmp(command, "!!cvar", 6) || !strncmp(command, "!!arg", 5))
{
unsigned int type;
unsigned int size;
union
{
float f;
unsigned int u;
} u[4];
char *arg;
unsigned char *cb = (unsigned char*)blob + blob->cvarsoffset + blob->cvarslength;
if (command[2] == 'a')
{
type = command[5] == 'i' || command[5] == 'f' || command[5] == 'b';
size = type?1:(command[5]-'0');
arg = strtok(command+7, " ,=\n");
type = command[6-type] - 'a' + 'A';
}
else
{
type = command[6] == 'i' || command[6] == 'f' || command[6] == 'b';
size = type?1:(command[6]-'0');
arg = strtok(command+8, " ,=\n");
type = command[7-type];
}
cb[0] = (constid>>8)&0xff;
cb[1] = (constid>>0)&0xff;
cb[2] = type;
cb[3] = size + '0';
cb += 4;
while(*arg)
*cb++ = *arg++;
*cb++ = 0;
for (i = 0; i < size; i++)
{
if (arg)
{
arg = strtok(NULL, " ,=\n");
if (type == 'f' || type == 'F')
u[i].f = atof(arg);
else
u[i].u = atoi(arg);
}
else
u[i].u = 0;
*cb++ = (u[i].u>>24)&0xff;
*cb++ = (u[i].u>>16)&0xff;
*cb++ = (u[i].u>>8)&0xff;
*cb++ = (u[i].u>>0)&0xff;
}
blob->cvarslength = cb - ((unsigned char*)blob + blob->cvarsoffset);
constid += size;
}
else if (!strncmp(command, "!!permu", 7))
{
char *arg = strtok(command+7, " ,\n");
for (i = 0; permutationnames[i]; i++)
{
if (!strcmp(arg, permutationnames[i]))
{
blob->permutations |= 1u<<i;
break;
}
}
if (!permutationnames[i])
printf("Unknown permutation: \"%s\"\n", arg);
}
else if (!strncmp(command, "!!samps", 7))
{
char *arg = strtok(command+7, " ,\n");
do
{
//light
if (!strcasecmp(arg, "shadowmap"))
blob->defaulttextures |= 1u<<0;
else if (!strcasecmp(arg, "projectionmap"))
blob->defaulttextures |= 1u<<1;
//material
else if (!strcasecmp(arg, "diffuse"))
blob->defaulttextures |= 1u<<2;
else if (!strcasecmp(arg, "normalmap"))
blob->defaulttextures |= 1u<<3;
else if (!strcasecmp(arg, "specular"))
blob->defaulttextures |= 1u<<4;
else if (!strcasecmp(arg, "upper"))
blob->defaulttextures |= 1u<<5;
else if (!strcasecmp(arg, "lower"))
blob->defaulttextures |= 1u<<6;
else if (!strcasecmp(arg, "fullbright"))
blob->defaulttextures |= 1u<<7;
else if (!strcasecmp(arg, "paletted"))
blob->defaulttextures |= 1u<<8;
else if (!strcasecmp(arg, "reflectcube"))
blob->defaulttextures |= 1u<<9;
else if (!strcasecmp(arg, "reflectmask"))
blob->defaulttextures |= 1u<<10;
//batch
else if (!strcasecmp(arg, "lightmap"))
blob->defaulttextures |= 1u<<11;
else if (!strcasecmp(arg, "deluxmap"))
blob->defaulttextures |= 1u<<12;
else if (!strcasecmp(arg, "lightmaps"))
blob->defaulttextures |= 1u<<11 | 1u<<13 | 1u<<14 | 1u<<15;
else if (!strcasecmp(arg, "deluxmaps"))
blob->defaulttextures |= 1u<<12 | 1u<<16 | 1u<<17 | 1u<<18;
//shader pass
else if (atoi(arg))
blob->numtextures = atoi(arg);
else
printf("Unknown texture: \"%s\"\n", arg);
} while((arg = strtok(NULL, " ,\n")));
}
continue;
}
else if (inheader && !strncmp(command, "//", 2))
continue;
else if (inheader)
{
const char *specialnames[] =
{
//light
"uniform sampler2DShadow s_shadowmap;\n",
"uniform samplerCube s_projectionmap;\n",
//material
"uniform sampler2D s_diffuse;\n",
"uniform sampler2D s_normalmap;\n",
"uniform sampler2D s_specular;\n",
"uniform sampler2D s_upper;\n",
"uniform sampler2D s_lower;\n",
"uniform sampler2D s_fullbright;\n",
"uniform sampler2D s_paletted;\n",
"uniform samplerCube s_reflectcube;\n",
"uniform sampler2D s_reflectmask;\n",
//batch
"uniform sampler2D s_lightmap;\n#define s_lightmap0 s_lightmap\n",
"uniform sampler2D s_deluxmap;\n#define s_deluxmap0 s_deluxmap\n",
"uniform sampler2D s_lightmap1;\n",
"uniform sampler2D s_lightmap2;\n",
"uniform sampler2D s_lightmap3;\n",
"uniform sampler2D s_deluxmap1;\n",
"uniform sampler2D s_deluxmap2;\n",
"uniform sampler2D s_deluxmap3;\n"
};
int binding = 2;
inheader = 0;
fprintf(temp, "#define OFFSETMAPPING (cvar_r_glsl_offsetmapping>0)\n");
fprintf(temp, "#define SPECULAR (cvar_gl_specular>0)\n");
fprintf(temp, "#ifdef FRAGMENT_SHADER\n");
for (i = 0; i < sizeof(specialnames)/sizeof(specialnames[0]); i++)
{
if (blob->defaulttextures & (1u<<i))
fprintf(temp, "layout(set=0, binding=%u) %s", binding++, specialnames[i]);
}
for (i = 0; i < blob->numtextures; i++)
{
fprintf(temp, "layout(set=0, binding=%u) uniform sampler2D s_t%u;\n", binding++, i);
}
fprintf(temp, "#endif\n");
//cvar specialisation constants
{
unsigned char *cb = (unsigned char*)blob + blob->cvarsoffset;
while (cb < (unsigned char*)blob + blob->cvarsoffset + blob->cvarslength)
{
union
{
float f;
unsigned int u;
} u[4];
unsigned short id;
unsigned char type;
unsigned char size;
char *name;
id = *cb++<<8;
id |= *cb++;
type = *cb++;
size = (*cb++)-'0';
name = cb;
cb += strlen(name)+1;
for (i = 0; i < size; i++)
{
u[i].u = (cb[0]<<24)|(cb[1]<<16)|(cb[2]<<8)|(cb[3]<<0);
cb+=4;
}
#if 0 //all is well
if (size == 1 && type == 'b')
fprintf(temp, "layout(constant_id=%u) const bool cvar_%s = %s;\n", id, name, (int)u[0].u?"true":"false");
else if (size == 1 && type == 'i')
fprintf(temp, "layout(constant_id=%u) const int cvar_%s = %i;\n", id, name, (int)u[0].u);
else if (size == 1 && type == 'f')
fprintf(temp, "layout(constant_id=%u) const float cvar_%s = %f;\n", id, name, u[0].f);
else if (size == 3 && type == 'f')
{
fprintf(temp, "layout(constant_id=%u) const float cvar_%s_x = %f;\n", id+0, name, u[0].f);
fprintf(temp, "layout(constant_id=%u) const float cvar_%s_y = %f;\n", id+1, name, u[1].f);
fprintf(temp, "layout(constant_id=%u) const float cvar_%s_z = %f;\n", id+2, name, u[2].f);
fprintf(temp, "vec3 cvar_%s = vec3(cvar_%s_x, cvar_%s_y, cvar_%s_z);\n", name, name, name, name);
}
else if (size == 1 && type == 'B')
fprintf(temp, "layout(constant_id=%u) const bool arg_%s = %s;\n", id, name, (int)u[0].u?"true":"false");
else if (size == 1 && type == 'I')
fprintf(temp, "layout(constant_id=%u) const int arg_%s = %i;\n", id, name, (int)u[0].u);
else if (size == 1 && type == 'F')
fprintf(temp, "layout(constant_id=%u) const float arg_%s = %i;\n", id, name, u[0].f);
else if (size == 3 && type == 'F')
{
fprintf(temp, "layout(constant_id=%u) const float arg_%s_x = %f;\n", id+0, name, u[0].f);
fprintf(temp, "layout(constant_id=%u) const float arg_%s_y = %f;\n", id+1, name, u[1].f);
fprintf(temp, "layout(constant_id=%u) const float arg_%s_z = %f;\n", id+2, name, u[2].f);
fprintf(temp, "vec3 arg_%s = vec3(arg_%s_x, arg_%s_y, arg_%s_z);\n", name, name, name, name);
}
#else
//these initialised values are fucked up because glslangvalidator's spirv generator is fucked up and folds specialisation constants.
//we get around this by ensuring that all such constants are given unique values to prevent them being folded, with the engine overriding everything explicitly.
if (size == 1 && type == 'b')
{
fprintf(temp, "layout(constant_id=%u) const int _cvar_%s = %i;\n", id, name, id);//(int)u[0].u?"true":"false");
fprintf(temp, "#define cvar_%s (_cvar_%s!=0)\n", name, name);
}
else if (size == 1 && type == 'i')
fprintf(temp, "layout(constant_id=%u) const int cvar_%s = %i;\n", id, name, id);//(int)u[0].u);
else if (size == 1 && type == 'f')
fprintf(temp, "layout(constant_id=%u) const float cvar_%s = %i;\n", id, name, id);//u[0].f);
else if (size == 3 && type == 'f')
{
fprintf(temp, "layout(constant_id=%u) const float cvar_%s_x = %i;\n", id+0, name, id+0);//u[0].f);
fprintf(temp, "layout(constant_id=%u) const float cvar_%s_y = %i;\n", id+1, name, id+1);//u[1].f);
fprintf(temp, "layout(constant_id=%u) const float cvar_%s_z = %i;\n", id+2, name, id+2);//u[2].f);
fprintf(temp, "vec3 cvar_%s = vec3(cvar_%s_x, cvar_%s_y, cvar_%s_z);\n", name, name, name, name);
}
else if (size == 1 && type == 'B')
{
fprintf(temp, "layout(constant_id=%u) const int _arg_%s = %i;\n", id, name, id);//(int)u[0].u?"true":"false");
fprintf(temp, "#define arg_%s (_arg_%s!=0)\n", name, name);
}
else if (size == 1 && type == 'I')
fprintf(temp, "layout(constant_id=%u) const int arg_%s = %i;\n", id, name, id);//(int)u[0].u);
else if (size == 1 && type == 'F')
fprintf(temp, "layout(constant_id=%u) const float arg_%s = %i;\n", id, name, id);//u[0].f);
else if (size == 3 && type == 'F')
{
fprintf(temp, "layout(constant_id=%u) const float arg_%s_x = %i;\n", id+0, name, id+0);//u[0].f);
fprintf(temp, "layout(constant_id=%u) const float arg_%s_y = %i;\n", id+1, name, id+1);//u[1].f);
fprintf(temp, "layout(constant_id=%u) const float arg_%s_z = %i;\n", id+2, name, id+2);//u[2].f);
fprintf(temp, "vec3 arg_%s = vec3(arg_%s_x, arg_%s_y, arg_%s_z);\n", name, name, name, name);
}
#endif
}
}
//permutation stuff
for (i = 0; i < sizeof(specialnames)/sizeof(specialnames[0]); i++)
{
if (blob->permutations & (1<<i))
{
#if 0 //all is well
fprintf(temp, "layout(constant_id=%u) const bool %s = %s;\n", 16+i, permutationnames[i], "false");
#else
fprintf(temp, "layout(constant_id=%u) const int _%s = %i;\n", 16+i, permutationnames[i], 16+i);
fprintf(temp, "#define %s (_%s!=0)\n", permutationnames[i], permutationnames[i]);
#endif
}
}
}
fputs(command, temp);
}
fclose(temp);
fclose(glsl);
snprintf(command, sizeof(command),
/*preprocess the vertex shader*/
"echo #version 450 core > vulkan/%s.vert && "
"cpp vulkan/%s.tmp -DVULKAN -DVERTEX_SHADER -P >> vulkan/%s.vert && "
/*preprocess the fragment shader*/
"echo #version 450 core > vulkan/%s.frag && "
"cpp vulkan/%s.tmp -DVULKAN -DFRAGMENT_SHADER -P >> vulkan/%s.frag && "
/*convert to spir-v (annoyingly we have no control over the output file names*/
"glslangValidator -V -l -d vulkan/%s.vert vulkan/%s.frag"
/*strip stuff out, so drivers don't glitch out from stuff that we don't use*/
" && spirv-remap -i vert.spv frag.spv -o vulkan/remap"
,fname, fname, fname, fname, fname, fname, fname, fname);
system(command);
return 1;
}
struct shadertype_s
{
char *filepattern;
char *preprocessor;
char *rendererapi;
int apiversion;
} shadertype[] =
{
{"glsl/%s.glsl", "GLQUAKE", "QR_OPENGL", 110}, //gl2+
//{"gles/%s.glsl", "GLQUAKE", "QR_OPENGL", 100}, //gles
{"hlsl9/%s.hlsl", "D3D9QUAKE", "QR_DIRECT3D9", 9}, //d3d9
{"hlsl11/%s.hlsl", "D3D11QUAKE", "QR_DIRECT3D11", 11}, //d3d11
{"vulkan/remap/%s.spv", "VKQUAKE", "QR_VULKAN", -1}, //vulkan
};
//tbh we should precompile the d3d shaders.
int main(void)
{
FILE *c, *s;
char line[1024];
int i, j, a;
c = fopen("../gl/r_bishaders.h", "wt");
if (!c)
{
printf("unable to open a file\n");
return;
}
fprintf(c, "/*\nWARNING: THIS FILE IS GENERATED BY '"__FILE__"'.\nYOU SHOULD NOT EDIT THIS FILE BY HAND\n*/\n\n");
for (i = 0; *shaders[i]; i++)
{
for (a = 0; a < sizeof(shadertype)/sizeof(shadertype[0]); a++)
{
if (shadertype[a].apiversion == -1)
{
FILE *v, *f;
char proto[8192];
if (!generatevulkanblobs((struct blobheader*)proto, sizeof(proto), shaders[i]))
continue;
sprintf(line, shadertype[a].filepattern, "vert");
v = fopen(line, "rb");
sprintf(line, shadertype[a].filepattern, "frag");
f = fopen(line, "rb");
if (f && v)
{
fprintf(c, "#ifdef %s\n", shadertype[a].preprocessor);
fprintf(c, "{%s, %i, \"%s\",\n", shadertype[a].rendererapi, shadertype[a].apiversion, shaders[i]);
generateprogsblob((struct blobheader*)proto, c, v, f);
fputs("},\n", c);
fprintf(c, "#endif\n");
}
fclose(f);
fclose(v);
}
else
{
sprintf(line, shadertype[a].filepattern, shaders[i]);
s = fopen(line, "rt");
if (!s)
{
printf("unable to open %s\n", line);
continue;
}
fprintf(c, "#ifdef %s\n", shadertype[a].preprocessor);
fprintf(c, "{%s, %i, \"%s\",\n", shadertype[a].rendererapi, shadertype[a].apiversion, shaders[i]);
dumpprogstring(c, s);
fputs("},\n", c);
fprintf(c, "#endif\n");
fclose(s);
}
fflush(c);
}
}
fclose(c);
}
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