mesa api_exec: add comment regarding GetPointerv & CORE profiles

[mesa.git] / src / mesa / main / blend.c

diff --git a/src/mesa/main/blend.c b/src/mesa/main/blend.c
index 09acdf5c588a7ff3b92e92a9b4f66ff8d25a4e4f..5cd3ce24425ce3c0a125690069f7b9bdd21f3f72 100644 (file)
--- a/src/mesa/main/blend.c
+++ b/src/mesa/main/blend.c
@@ -58,11 +58,18 @@ legal_src_factor(const struct gl_context *ctx, GLenum factor)
    case GL_DST_ALPHA:
    case GL_ONE_MINUS_DST_ALPHA:
    case GL_SRC_ALPHA_SATURATE:
+      return GL_TRUE;
    case GL_CONSTANT_COLOR:
    case GL_ONE_MINUS_CONSTANT_COLOR:
    case GL_CONSTANT_ALPHA:
    case GL_ONE_MINUS_CONSTANT_ALPHA:
-      return GL_TRUE;
+      return _mesa_is_desktop_gl(ctx) || ctx->API == API_OPENGLES2;
+   case GL_SRC1_COLOR:
+   case GL_SRC1_ALPHA:
+   case GL_ONE_MINUS_SRC1_COLOR:
+   case GL_ONE_MINUS_SRC1_ALPHA:
+      return _mesa_is_desktop_gl(ctx)
+         && ctx->Extensions.ARB_blend_func_extended;
    default:
       return GL_FALSE;
    }
@@ -88,11 +95,22 @@ legal_dst_factor(const struct gl_context *ctx, GLenum factor)
    case GL_ONE_MINUS_SRC_ALPHA:
    case GL_DST_ALPHA:
    case GL_ONE_MINUS_DST_ALPHA:
+      return GL_TRUE;
    case GL_CONSTANT_COLOR:
    case GL_ONE_MINUS_CONSTANT_COLOR:
    case GL_CONSTANT_ALPHA:
    case GL_ONE_MINUS_CONSTANT_ALPHA:
-      return GL_TRUE;
+      return _mesa_is_desktop_gl(ctx) || ctx->API == API_OPENGLES2;
+   case GL_SRC_ALPHA_SATURATE:
+      return (_mesa_is_desktop_gl(ctx)
+              && ctx->Extensions.ARB_blend_func_extended)
+         || _mesa_is_gles3(ctx);
+   case GL_SRC1_COLOR:
+   case GL_SRC1_ALPHA:
+   case GL_ONE_MINUS_SRC1_COLOR:
+   case GL_ONE_MINUS_SRC1_ALPHA:
+      return _mesa_is_desktop_gl(ctx)
+         && ctx->Extensions.ARB_blend_func_extended;
    default:
       return GL_FALSE;
    }
@@ -155,6 +173,24 @@ _mesa_BlendFunc( GLenum sfactor, GLenum dfactor )
    _mesa_BlendFuncSeparateEXT(sfactor, dfactor, sfactor, dfactor);
 }
 
+static GLboolean
+blend_factor_is_dual_src(GLenum factor)
+{
+   return (factor == GL_SRC1_COLOR ||
+          factor == GL_SRC1_ALPHA ||
+          factor == GL_ONE_MINUS_SRC1_COLOR ||
+          factor == GL_ONE_MINUS_SRC1_ALPHA);
+}
+
+static void
+update_uses_dual_src(struct gl_context *ctx, int buf)
+{
+   ctx->Color.Blend[buf]._UsesDualSrc =
+      (blend_factor_is_dual_src(ctx->Color.Blend[buf].SrcRGB) ||
+       blend_factor_is_dual_src(ctx->Color.Blend[buf].DstRGB) ||
+       blend_factor_is_dual_src(ctx->Color.Blend[buf].SrcA) ||
+       blend_factor_is_dual_src(ctx->Color.Blend[buf].DstA));
+}
 
 /**
  * Set the separate blend source/dest factors for all draw buffers.
@@ -209,6 +245,7 @@ _mesa_BlendFuncSeparateEXT( GLenum sfactorRGB, GLenum dfactorRGB,
       ctx->Color.Blend[buf].DstRGB = dfactorRGB;
       ctx->Color.Blend[buf].SrcA = sfactorA;
       ctx->Color.Blend[buf].DstA = dfactorA;
+      update_uses_dual_src(ctx, buf);
    }
    ctx->Color._BlendFuncPerBuffer = GL_FALSE;
 
@@ -219,9 +256,6 @@ _mesa_BlendFuncSeparateEXT( GLenum sfactorRGB, GLenum dfactorRGB,
 }
 
 
-#if _HAVE_FULL_GL
-
-
 /**
  * Set blend source/dest factors for one color buffer/target.
  */
@@ -271,6 +305,7 @@ _mesa_BlendFuncSeparatei(GLuint buf, GLenum sfactorRGB, GLenum dfactorRGB,
    ctx->Color.Blend[buf].DstRGB = dfactorRGB;
    ctx->Color.Blend[buf].SrcA = sfactorA;
    ctx->Color.Blend[buf].DstA = dfactorA;
+   update_uses_dual_src(ctx, buf);
    ctx->Color._BlendFuncPerBuffer = GL_TRUE;
 
    if (ctx->Driver.BlendFuncSeparatei) {
@@ -482,10 +517,6 @@ _mesa_BlendEquationSeparatei(GLuint buf, GLenum modeRGB, GLenum modeA)
 }
 
 
-
-#endif /* _HAVE_FULL_GL */
-
-
 /**
  * Set the blending color.
  *
@@ -628,7 +659,7 @@ _mesa_LogicOp( GLenum opcode )
       ctx->Driver.LogicOpcode( ctx, opcode );
 }
 
-#if _HAVE_FULL_GL
+
 void GLAPIENTRY
 _mesa_IndexMask( GLuint mask )
 {
@@ -641,7 +672,6 @@ _mesa_IndexMask( GLuint mask )
    FLUSH_VERTICES(ctx, _NEW_COLOR);
    ctx->Color.IndexMask = mask;
 }
-#endif
 
 
 /**
@@ -820,6 +850,13 @@ void _mesa_init_color( struct gl_context * ctx )
    ctx->Color._ClampFragmentColor = GL_TRUE;
    ctx->Color.ClampReadColor = GL_FIXED_ONLY_ARB;
    ctx->Color._ClampReadColor = GL_TRUE;
+
+   if (ctx->API == API_OPENGLES2) {
+      /* GLES 3 behaves as though GL_FRAMEBUFFER_SRGB is always enabled. */
+      ctx->Color.sRGBEnabled = GL_TRUE;
+   } else {
+      ctx->Color.sRGBEnabled = GL_FALSE;
+   }
 }
 
 /*@}*/