140 lines
2.9 KiB
C
140 lines
2.9 KiB
C
#define SHADER_PASS_MAX 8
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#define SHADER_MAX_TC_MODS 8
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#define SHADER_DEFORM_MAX 8
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#define SHADER_MAX_ANIMFRAMES 8
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//colour manipulation
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typedef struct
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{
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enum {
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SHADER_FUNC_SIN,
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SHADER_FUNC_TRIANGLE,
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SHADER_FUNC_SQUARE,
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SHADER_FUNC_SAWTOOTH,
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SHADER_FUNC_INVERSESAWTOOTH,
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SHADER_FUNC_NOISE
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} type; // SHADER_FUNC enum
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float args[4]; // offset, amplitude, phase_offset, rate
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} shaderfunc_t;
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//tecture coordinate manipulation
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typedef struct
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{
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enum {
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SHADER_TCMOD_NONE, //bug
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SHADER_TCMOD_SCALE, //some sorta tabled deformation
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SHADER_TCMOD_SCROLL, //boring moving texcoords with time
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SHADER_TCMOD_STRETCH, //constant factor
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SHADER_TCMOD_ROTATE
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} type;
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float args[6];
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} tcmod_t;
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//vertex positioning manipulation.
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typedef struct
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{
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enum {
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DEFORMV_NONE, //bug
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DEFORMV_MOVE,
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DEFORMV_WAVE,
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DEFORMV_NORMAL,
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DEFORMV_BULGE,
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DEFORMV_AUTOSPRITE,
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DEFORMV_AUTOSPRITE2,
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DEFORMV_PROJECTION_SHADOW
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} type;
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float args[4];
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shaderfunc_t func;
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} deformv_t;
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typedef struct {
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int mergedpasses;
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shaderfunc_t rgbgen_func;
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shaderfunc_t alphagen_func;
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unsigned int blendsrc, blenddst; // glBlendFunc args
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unsigned int blendmode, envmode;
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unsigned int combinesrc0, combinesrc1, combinemode;
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unsigned int depthfunc; // glDepthFunc arg
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enum {
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SHADER_ALPHA_GT0,
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SHADER_ALPHA_LT128,
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SHADER_ALPHA_GE128
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} alphafunc;
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enum {
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TC_GEN_BASE, //basic specified texture coords
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TC_GEN_LIGHTMAP, //use loaded lightmap coords
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TC_GEN_ENVIRONMENT,
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TC_GEN_DOTPRODUCT
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} tcgen;
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enum {
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RGB_GEN_WAVE,
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RGB_GEN_ENTITY,
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RGB_GEN_ONE_MINUS_ENTITY,
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RGB_GEN_VERTEX,
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RGB_GEN_EXACT_VERTEX,
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RGB_GEN_ONE_MINUS_VERTEX,
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RGB_GEN_IDENTITY_LIGHTING,
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RGB_GEN_IDENTITY,
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RGB_GEN_CONST
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} rgbgen;
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enum {
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ALPHA_GEN_ENTITY,
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ALPHA_GEN_WAVE,
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ALPHA_GEN_PORTAL,
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ALPHA_GEN_SPECULAR,
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ALPHA_GEN_IDENTITY
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} alphagen;
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int numtcmods;
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tcmod_t tcmod[SHADER_MAX_TC_MODS];
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int anim_numframes;
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int anim_frames[SHADER_MAX_ANIMFRAMES];
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float fps;
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unsigned int texturetype;
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enum {
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SHADER_PASS_BLEND = 1 << 0,
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SHADER_PASS_ALPHAFUNC = 1 << 1,
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SHADER_PASS_DEPTHWRITE = 1 << 2
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} flags;
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} shaderpass_t;
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typedef struct shader_s {
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int numpasses; //careful... 0 means it's not loaded... and not actually a proper shader.
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struct shader_s *next;
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char name[MAX_QPATH];
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//end of shared fields.
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byte_vec4_t fog_color;
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int numdeforms;
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deformv_t deforms[SHADER_DEFORM_MAX];
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enum {
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SHADER_SKY = 1 << 0,
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SHADER_NOMIPMAPS = 1 << 1,
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SHADER_NOPICMIP = 1 << 2,
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SHADER_CULL_FRONT = 1 << 3,
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SHADER_CULL_BACK = 1 << 4,
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SHADER_DEFORMV_BULGE = 1 << 5,
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SHADER_AUTOSPRITE = 1 << 5
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} flags;
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shaderpass_t pass[SHADER_PASS_MAX];
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} shader_t;
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void GLR_MeshInit(void);
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void GL_DrawMesh(mesh_t *mesh, shader_t *shader, int texturenum, int lmtexturenum);
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void GL_DrawMeshBump(mesh_t *mesh, int texturenum, int lmtexturenum, int bumpnum, int deluxnum);
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