diff options
Diffstat (limited to 'src/mesa/main/shaderapi.c')
| -rw-r--r-- | src/mesa/main/shaderapi.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/src/mesa/main/shaderapi.c b/src/mesa/main/shaderapi.c index 9372d6decf6..f3f13a02645 100644 --- a/src/mesa/main/shaderapi.c +++ b/src/mesa/main/shaderapi.c @@ -124,6 +124,8 @@ _mesa_free_shader_state(struct gl_context *ctx) NULL); _mesa_reference_shader_program(ctx, &ctx->Shader.CurrentFragmentProgram, NULL); + _mesa_reference_shader_program(ctx, &ctx->Shader._CurrentFragmentProgram, + NULL); _mesa_reference_shader_program(ctx, &ctx->Shader.ActiveProgram, NULL); } @@ -876,6 +878,33 @@ use_shader_program(struct gl_context *ctx, GLenum type, if (*target != shProg) { FLUSH_VERTICES(ctx, _NEW_PROGRAM | _NEW_PROGRAM_CONSTANTS); + + /* If the shader is also bound as the current rendering shader, unbind + * it from that binding point as well. This ensures that the correct + * semantics of glDeleteProgram are maintained. + */ + switch (type) { +#if FEATURE_ARB_vertex_shader + case GL_VERTEX_SHADER: + /* Empty for now. */ + break; +#endif +#if FEATURE_ARB_geometry_shader4 + case GL_GEOMETRY_SHADER_ARB: + /* Empty for now. */ + break; +#endif +#if FEATURE_ARB_fragment_shader + case GL_FRAGMENT_SHADER: + if (*target == ctx->Shader._CurrentFragmentProgram) { + _mesa_reference_shader_program(ctx, + &ctx->Shader._CurrentFragmentProgram, + NULL); + } + break; +#endif + } + _mesa_reference_shader_program(ctx, target, shProg); return true; } |