-/* $Id: blend.h,v 1.5 2000/10/28 18:34:48 brianp Exp $ */
+/**
+ * \file blend.h
+ * Blending functions operations.
+ */
/*
* Mesa 3-D graphics library
- * Version: 3.5
- *
- * Copyright (C) 1999-2000 Brian Paul All Rights Reserved.
- *
+ *
+ * Copyright (C) 1999-2006 Brian Paul All Rights Reserved.
+ *
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
- *
+ *
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
- *
+ *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
*/
+
#ifndef BLEND_H
#define BLEND_H
-#include "types.h"
+#include "glheader.h"
+#include "context.h"
+#include "formats.h"
+#include "extensions.h"
+struct gl_context;
+struct gl_framebuffer;
-extern void
-_mesa_blend_span( GLcontext *ctx, GLuint n, GLint x, GLint y,
- GLchan rgba[][4], const GLubyte mask[] );
+extern void GLAPIENTRY
+_mesa_BlendFunc( GLenum sfactor, GLenum dfactor );
+extern void GLAPIENTRY
+_mesa_BlendFunc_no_error(GLenum sfactor, GLenum dfactor);
-extern void
-_mesa_blend_pixels( GLcontext *ctx,
- GLuint n, const GLint x[], const GLint y[],
- GLchan rgba[][4], const GLubyte mask[] );
+extern void GLAPIENTRY
+_mesa_BlendFuncSeparate( GLenum sfactorRGB, GLenum dfactorRGB,
+ GLenum sfactorA, GLenum dfactorA );
+extern void GLAPIENTRY
+_mesa_BlendFuncSeparate_no_error(GLenum sfactorRGB, GLenum dfactorRGB,
+ GLenum sfactorA, GLenum dfactorA);
-extern void
-_mesa_BlendFunc( GLenum sfactor, GLenum dfactor );
+extern void GLAPIENTRY
+_mesa_BlendFunciARB_no_error(GLuint buf, GLenum sfactor, GLenum dfactor);
+extern void GLAPIENTRY
+_mesa_BlendFunciARB(GLuint buf, GLenum sfactor, GLenum dfactor);
-extern void
-_mesa_BlendFuncSeparateEXT( GLenum sfactorRGB, GLenum dfactorRGB,
- GLenum sfactorA, GLenum dfactorA );
+extern void GLAPIENTRY
+_mesa_BlendFuncSeparateiARB_no_error(GLuint buf, GLenum sfactorRGB,
+ GLenum dfactorRGB, GLenum sfactorA,
+ GLenum dfactorA);
+extern void GLAPIENTRY
+_mesa_BlendFuncSeparateiARB(GLuint buf, GLenum sfactorRGB, GLenum dfactorRGB,
+ GLenum sfactorA, GLenum dfactorA);
-extern void
+extern void GLAPIENTRY
_mesa_BlendEquation( GLenum mode );
-extern void
+void GLAPIENTRY
+_mesa_BlendEquationiARB_no_error(GLuint buf, GLenum mode);
+
+extern void GLAPIENTRY
+_mesa_BlendEquationiARB(GLuint buf, GLenum mode);
+
+
+void GLAPIENTRY
+_mesa_BlendEquationSeparate_no_error(GLenum modeRGB, GLenum modeA);
+
+extern void GLAPIENTRY
+_mesa_BlendEquationSeparate( GLenum modeRGB, GLenum modeA );
+
+
+extern void GLAPIENTRY
+_mesa_BlendEquationSeparateiARB_no_error(GLuint buf, GLenum modeRGB,
+ GLenum modeA);
+extern void GLAPIENTRY
+_mesa_BlendEquationSeparateiARB(GLuint buf, GLenum modeRGB, GLenum modeA);
+
+
+extern void GLAPIENTRY
_mesa_BlendColor(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha);
+extern void GLAPIENTRY
+_mesa_AlphaFunc( GLenum func, GLclampf ref );
+
+
+extern void GLAPIENTRY
+_mesa_LogicOp( GLenum opcode );
+
+
+extern void GLAPIENTRY
+_mesa_LogicOp_no_error(GLenum opcode);
+
+
+extern void GLAPIENTRY
+_mesa_IndexMask( GLuint mask );
+
+extern void GLAPIENTRY
+_mesa_ColorMask( GLboolean red, GLboolean green,
+ GLboolean blue, GLboolean alpha );
+
+extern void GLAPIENTRY
+_mesa_ColorMaski( GLuint buf, GLboolean red, GLboolean green,
+ GLboolean blue, GLboolean alpha );
+
+
+extern void GLAPIENTRY
+_mesa_ClampColor(GLenum target, GLenum clamp);
+
+extern GLboolean
+_mesa_get_clamp_fragment_color(const struct gl_context *ctx,
+ const struct gl_framebuffer *drawFb);
+
+extern GLboolean
+_mesa_get_clamp_vertex_color(const struct gl_context *ctx,
+ const struct gl_framebuffer *drawFb);
+
+extern GLboolean
+_mesa_get_clamp_read_color(const struct gl_context *ctx,
+ const struct gl_framebuffer *readFb);
+
+extern void
+_mesa_update_clamp_fragment_color(struct gl_context *ctx,
+ const struct gl_framebuffer *drawFb);
+
+extern void
+_mesa_update_clamp_vertex_color(struct gl_context *ctx,
+ const struct gl_framebuffer *drawFb);
+
+extern mesa_format
+_mesa_get_render_format(const struct gl_context *ctx, mesa_format format);
+
+extern void
+_mesa_init_color( struct gl_context * ctx );
+
+
+static inline enum gl_advanced_blend_mode
+_mesa_get_advanced_blend_sh_constant(GLbitfield blend_enabled,
+ enum gl_advanced_blend_mode mode)
+{
+ return blend_enabled ? mode : BLEND_NONE;
+}
+
+static inline bool
+_mesa_advanded_blend_sh_constant_changed(struct gl_context *ctx,
+ GLbitfield new_blend_enabled,
+ enum gl_advanced_blend_mode new_mode)
+{
+ return _mesa_get_advanced_blend_sh_constant(new_blend_enabled, new_mode) !=
+ _mesa_get_advanced_blend_sh_constant(ctx->Color.BlendEnabled,
+ ctx->Color._AdvancedBlendMode);
+}
+
+static inline void
+_mesa_flush_vertices_for_blend_state(struct gl_context *ctx)
+{
+ if (!ctx->DriverFlags.NewBlend) {
+ FLUSH_VERTICES(ctx, _NEW_COLOR);
+ } else {
+ FLUSH_VERTICES(ctx, 0);
+ ctx->NewDriverState |= ctx->DriverFlags.NewBlend;
+ }
+}
+
+static inline void
+_mesa_flush_vertices_for_blend_adv(struct gl_context *ctx,
+ GLbitfield new_blend_enabled,
+ enum gl_advanced_blend_mode new_mode)
+{
+ /* The advanced blend mode needs _NEW_COLOR to update the state constant. */
+ if (_mesa_has_KHR_blend_equation_advanced(ctx) &&
+ _mesa_advanded_blend_sh_constant_changed(ctx, new_blend_enabled,
+ new_mode)) {
+ FLUSH_VERTICES(ctx, _NEW_COLOR);
+ ctx->NewDriverState |= ctx->DriverFlags.NewBlend;
+ return;
+ }
+ _mesa_flush_vertices_for_blend_state(ctx);
+}
+
+static inline GLbitfield
+_mesa_replicate_colormask(GLbitfield mask0, unsigned num_buffers)
+{
+ GLbitfield mask = mask0;
+
+ for (unsigned i = 1; i < num_buffers; i++)
+ mask |= mask0 << (i * 4);
+ return mask;
+}
+
#endif
projects / mesa.git / blobdiff