diff options
author | Christian König <[email protected]> | 2011-07-04 15:04:41 +0200 |
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committer | Christian König <[email protected]> | 2011-07-04 15:04:41 +0200 |
commit | c3b2230b71cb3a00a7f4c0987197d397bada650b (patch) | |
tree | 018f5df0f8b5976ddb56ef4f13e9466587838998 /src/mesa/main/state.c | |
parent | 003401f95c9b59471c22368b7da16fe7a951e490 (diff) | |
parent | 424b1210d951c206e7c2fb8f2778acbd384eb247 (diff) |
Merge remote-tracking branch 'origin/master' into pipe-video
Conflicts:
configure.ac
src/gallium/drivers/r600/r600_state_inlines.h
src/gallium/tests/trivial/Makefile
src/gallium/winsys/g3dvl/dri/XF86dri.c
src/gallium/winsys/g3dvl/dri/driclient.c
src/gallium/winsys/g3dvl/dri/driclient.h
src/gallium/winsys/g3dvl/dri/xf86dri.h
src/gallium/winsys/g3dvl/dri/xf86dristr.h
src/gallium/winsys/r600/drm/r600_bo.c
Diffstat (limited to 'src/mesa/main/state.c')
-rw-r--r-- | src/mesa/main/state.c | 65 |
1 files changed, 41 insertions, 24 deletions
diff --git a/src/mesa/main/state.c b/src/mesa/main/state.c index 4696dbb526f..7ad50bcaddc 100644 --- a/src/mesa/main/state.c +++ b/src/mesa/main/state.c @@ -192,7 +192,10 @@ update_arrays( struct gl_context *ctx ) static void update_program_enables(struct gl_context *ctx) { - /* These _Enabled flags indicate if the program is enabled AND valid. */ + /* These _Enabled flags indicate if the user-defined ARB/NV vertex/fragment + * program is enabled AND valid. Similarly for ATI fragment shaders. + * GLSL shaders not relevant here. + */ ctx->VertexProgram._Enabled = ctx->VertexProgram.Enabled && ctx->VertexProgram.Current->Base.Instructions; ctx->FragmentProgram._Enabled = ctx->FragmentProgram.Enabled @@ -203,11 +206,12 @@ update_program_enables(struct gl_context *ctx) /** - * Update vertex/fragment program state. In particular, update these fields: - * ctx->VertexProgram._Current - * ctx->VertexProgram._TnlProgram, - * These point to the highest priority enabled vertex/fragment program or are - * NULL if fixed-function processing is to be done. + * Update the ctx->Vertex/Geometry/FragmentProgram._Current pointers to point + * to the current/active programs. Then call ctx->Driver.BindProgram() to + * tell the driver which programs to use. + * + * Programs may come from 3 sources: GLSL shaders, ARB/NV_vertex/fragment + * programs or programs derived from fixed-function state. * * This function needs to be called after texture state validation in case * we're generating a fragment program from fixed-function texture state. @@ -243,34 +247,33 @@ update_program(struct gl_context *ctx) */ if (fsProg && fsProg->LinkStatus && fsProg->FragmentProgram) { - /* Use shader programs */ + /* Use GLSL fragment shader */ _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current, fsProg->FragmentProgram); } else if (ctx->FragmentProgram._Enabled) { - /* use user-defined vertex program */ + /* Use user-defined fragment program */ _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current, ctx->FragmentProgram.Current); } else if (ctx->FragmentProgram._MaintainTexEnvProgram) { - /* Use fragment program generated from fixed-function state. - */ + /* Use fragment program generated from fixed-function state */ _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current, _mesa_get_fixed_func_fragment_program(ctx)); _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._TexEnvProgram, ctx->FragmentProgram._Current); } else { - /* no fragment program */ + /* No fragment program */ _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current, NULL); } if (gsProg && gsProg->LinkStatus && gsProg->GeometryProgram) { - /* Use shader programs */ + /* Use GLSL geometry shader */ _mesa_reference_geomprog(ctx, &ctx->GeometryProgram._Current, gsProg->GeometryProgram); } else { - /* no fragment program */ + /* No geometry program */ _mesa_reference_geomprog(ctx, &ctx->GeometryProgram._Current, NULL); } @@ -279,18 +282,17 @@ update_program(struct gl_context *ctx) * fragprog inputs. */ if (vsProg && vsProg->LinkStatus && vsProg->VertexProgram) { - /* Use shader programs */ + /* Use GLSL vertex shader */ _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current, - vsProg->VertexProgram); + vsProg->VertexProgram); } else if (ctx->VertexProgram._Enabled) { - /* use user-defined vertex program */ + /* Use user-defined vertex program */ _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current, ctx->VertexProgram.Current); } else if (ctx->VertexProgram._MaintainTnlProgram) { - /* Use vertex program generated from fixed-function state. - */ + /* Use vertex program generated from fixed-function state */ _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current, _mesa_get_fixed_func_vertex_program(ctx)); _mesa_reference_vertprog(ctx, &ctx->VertexProgram._TnlProgram, @@ -416,29 +418,44 @@ update_color(struct gl_context *ctx) ctx->Color._LogicOpEnabled = _mesa_rgba_logicop_enabled(ctx); } + +/** + * Update the ctx->Color._ClampFragmentColor field + */ static void update_clamp_fragment_color(struct gl_context *ctx) { - if(ctx->Color.ClampFragmentColor == GL_FIXED_ONLY_ARB) - ctx->Color._ClampFragmentColor = !ctx->DrawBuffer || !ctx->DrawBuffer->Visual.floatMode; + if (ctx->Color.ClampFragmentColor == GL_FIXED_ONLY_ARB) + ctx->Color._ClampFragmentColor = + !ctx->DrawBuffer || !ctx->DrawBuffer->Visual.floatMode; else ctx->Color._ClampFragmentColor = ctx->Color.ClampFragmentColor; } + +/** + * Update the ctx->Color._ClampVertexColor field + */ static void update_clamp_vertex_color(struct gl_context *ctx) { - if(ctx->Light.ClampVertexColor == GL_FIXED_ONLY_ARB) - ctx->Light._ClampVertexColor = !ctx->DrawBuffer || !ctx->DrawBuffer->Visual.floatMode; + if (ctx->Light.ClampVertexColor == GL_FIXED_ONLY_ARB) + ctx->Light._ClampVertexColor = + !ctx->DrawBuffer || !ctx->DrawBuffer->Visual.floatMode; else ctx->Light._ClampVertexColor = ctx->Light.ClampVertexColor; } + +/** + * Update the ctx->Color._ClampReadColor field + */ static void update_clamp_read_color(struct gl_context *ctx) { - if(ctx->Color.ClampReadColor == GL_FIXED_ONLY_ARB) - ctx->Color._ClampReadColor = !ctx->ReadBuffer || !ctx->ReadBuffer->Visual.floatMode; + if (ctx->Color.ClampReadColor == GL_FIXED_ONLY_ARB) + ctx->Color._ClampReadColor = + !ctx->ReadBuffer || !ctx->ReadBuffer->Visual.floatMode; else ctx->Color._ClampReadColor = ctx->Color.ClampReadColor; } |