diff options
| -rw-r--r-- | src/mesa/main/context.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/src/mesa/main/context.c b/src/mesa/main/context.c index 9401e3dcc2b..3e265fb3087 100644 --- a/src/mesa/main/context.c +++ b/src/mesa/main/context.c @@ -1700,7 +1700,7 @@ _mesa_valid_to_render(struct gl_context *ctx, const char *where) if (ctx->Shader.CurrentProgram) { struct gl_shader_program *const prog = ctx->Shader.CurrentProgram; - /* using shaders */ + /* The current shader program must be successfully linked */ if (!prog->LinkStatus) { _mesa_error(ctx, GL_INVALID_OPERATION, "%s(shader not linked)", where); @@ -1728,6 +1728,16 @@ _mesa_valid_to_render(struct gl_context *ctx, const char *where) prog->_LinkedShaders[MESA_SHADER_FRAGMENT] != NULL; } + /* If drawing to integer-valued color buffers, there must be an + * active fragment shader (GL_EXT_texture_integer). + */ + if (ctx->DrawBuffer && ctx->DrawBuffer->_IntegerColor) { + if (!frag_from_glsl_shader) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "%s(integer format but no fragment shader)", where); + return GL_FALSE; + } + } /* Any shader stages that are not supplied by the GLSL shader and have * assembly shaders enabled must now be validated. |