diff options
| -rw-r--r-- | src/mesa/main/state.c | 126 |
1 files changed, 74 insertions, 52 deletions
diff --git a/src/mesa/main/state.c b/src/mesa/main/state.c index 444f227760..41c657e9fd 100644 --- a/src/mesa/main/state.c +++ b/src/mesa/main/state.c @@ -92,6 +92,7 @@ #include "shader/program.h" #include "texenvprogram.h" #endif +#include "tnl/t_vp_build.h" #if FEATURE_ARB_shader_objects #include "shaders.h" #endif @@ -938,13 +939,12 @@ update_arrays( GLcontext *ctx ) } -/** - * Update derived vertex/fragment program state. - */ static void update_program(GLcontext *ctx) { const struct gl_shader_program *shProg = ctx->Shader.CurrentProgram; + const struct gl_vertex_program *prevVP = ctx->VertexProgram._Current; + const struct gl_fragment_program *prevFP = ctx->FragmentProgram._Current; /* These _Enabled flags indicate if the program is enabled AND valid. */ ctx->VertexProgram._Enabled = ctx->VertexProgram.Enabled @@ -956,64 +956,83 @@ update_program(GLcontext *ctx) /* * Set the ctx->VertexProgram._Current and ctx->FragmentProgram._Current - * pointers to the programs that should be enabled/used. + * pointers to the programs that should be enabled/used. These will only + * be NULL if we need to use the fixed-function code. * * These programs may come from several sources. The priority is as * follows: * 1. OpenGL 2.0/ARB vertex/fragment shaders * 2. ARB/NV vertex/fragment programs * 3. Programs derived from fixed-function state. + * + * Note: it's possible for a vertex shader to get used with a fragment + * program (and vice versa) here, but in practice that shouldn't ever + * come up, or matter. */ - ctx->FragmentProgram._Current = NULL; - - if (shProg && shProg->LinkStatus) { - /* Use shader programs */ - /* XXX this isn't quite right, since we may have either a vertex - * _or_ fragment shader (not always both). - */ - ctx->VertexProgram._Current = shProg->VertexProgram; + /** + ** Fragment program + **/ +#if 1 + /* XXX get rid of this someday? */ + ctx->FragmentProgram._Active = GL_FALSE; +#endif + if (shProg && shProg->LinkStatus && shProg->FragmentProgram) { + /* user-defined fragment shader */ ctx->FragmentProgram._Current = shProg->FragmentProgram; } + else if (ctx->FragmentProgram._Enabled) { + /* use user-defined fragment program */ + ctx->FragmentProgram._Current = ctx->FragmentProgram.Current; + } + else if (ctx->FragmentProgram._MaintainTexEnvProgram) { + /* fragment program generated from fixed-function state */ + ctx->FragmentProgram._Current = _mesa_get_fixed_func_fragment_program(ctx); + ctx->FragmentProgram._TexEnvProgram = ctx->FragmentProgram._Current; + + /* XXX get rid of this confusing stuff someday? */ + ctx->FragmentProgram._Active = ctx->FragmentProgram._Enabled; + if (ctx->FragmentProgram._UseTexEnvProgram) + ctx->FragmentProgram._Active = GL_TRUE; + } else { - if (ctx->VertexProgram._Enabled) { - /* use user-defined vertex program */ - ctx->VertexProgram._Current = ctx->VertexProgram.Current; - } - else if (ctx->VertexProgram._MaintainTnlProgram) { - /* Use vertex program generated from fixed-function state. - * The _Current pointer will get set in - * _tnl_UpdateFixedFunctionProgram() later if appropriate. - */ - ctx->VertexProgram._Current = NULL; - } - else { - /* no vertex program */ - ctx->VertexProgram._Current = NULL; - } + /* no fragment program */ + ctx->FragmentProgram._Current = NULL; + } - if (ctx->FragmentProgram._Enabled) { - /* use user-defined vertex program */ - ctx->FragmentProgram._Current = ctx->FragmentProgram.Current; - } - else if (ctx->FragmentProgram._MaintainTexEnvProgram) { - /* Use fragment program generated from fixed-function state. - * The _Current pointer will get set in _mesa_UpdateTexEnvProgram() - * later if appropriate. - */ - ctx->FragmentProgram._Current = NULL; - } - else { - /* no fragment program */ - ctx->FragmentProgram._Current = NULL; - } + if (ctx->FragmentProgram._Current != prevFP && ctx->Driver.BindProgram) { + ctx->Driver.BindProgram(ctx, GL_FRAGMENT_PROGRAM_ARB, + (struct gl_program *) ctx->FragmentProgram._Current); } - ctx->FragmentProgram._Active = ctx->FragmentProgram._Enabled; - if (ctx->FragmentProgram._MaintainTexEnvProgram && - !ctx->FragmentProgram._Enabled) { - if (ctx->FragmentProgram._UseTexEnvProgram) - ctx->FragmentProgram._Active = GL_TRUE; + /** + ** Vertex program + **/ +#if 1 + /* XXX get rid of this someday? */ + ctx->VertexProgram._TnlProgram = NULL; +#endif + if (shProg && shProg->LinkStatus && shProg->VertexProgram) { + /* user-defined vertex shader */ + ctx->VertexProgram._Current = shProg->VertexProgram; + } + else if (ctx->VertexProgram._Enabled) { + /* use user-defined vertex program */ + ctx->VertexProgram._Current = ctx->VertexProgram.Current; + } + else if (ctx->VertexProgram._MaintainTnlProgram) { + /* vertex program generated from fixed-function state */ + ctx->VertexProgram._Current = _mesa_get_fixed_func_vertex_program(ctx); + ctx->VertexProgram._TnlProgram = ctx->VertexProgram._Current; + } + else { + /* no vertex program / used fixed-function code */ + ctx->VertexProgram._Current = NULL; + } + + if (ctx->VertexProgram._Current != prevVP && ctx->Driver.BindProgram) { + ctx->Driver.BindProgram(ctx, GL_VERTEX_PROGRAM_ARB, + (struct gl_program *) ctx->VertexProgram._Current); } } @@ -1140,13 +1159,11 @@ void _mesa_update_state_locked( GLcontext *ctx ) { GLbitfield new_state = ctx->NewState; + GLbitfield prog_flags = _NEW_PROGRAM; if (MESA_VERBOSE & VERBOSE_STATE) _mesa_print_state("_mesa_update_state", new_state); - if (new_state & _NEW_PROGRAM) - update_program( ctx ); - if (new_state & (_NEW_MODELVIEW|_NEW_PROJECTION)) _mesa_update_modelview_project( ctx, new_state ); @@ -1182,9 +1199,14 @@ _mesa_update_state_locked( GLcontext *ctx ) update_tricaps( ctx, new_state ); if (ctx->FragmentProgram._MaintainTexEnvProgram) { - if (new_state & (_NEW_TEXTURE | _DD_NEW_SEPARATE_SPECULAR | _NEW_FOG)) - _mesa_UpdateTexEnvProgram(ctx); + prog_flags |= (_NEW_TEXTURE | _NEW_FOG | _DD_NEW_SEPARATE_SPECULAR); } + if (ctx->VertexProgram._MaintainTnlProgram) { + prog_flags |= (_NEW_TEXTURE | _NEW_FOG | _NEW_LIGHT); + } + if (new_state & prog_flags) + update_program( ctx ); + /* ctx->_NeedEyeCoords is now up to date. * |