#endif
#include "arrayobj.h"
#include "buffers.h"
+#include "clear.h"
#include "clip.h"
#include "colortab.h"
#include "context.h"
/**
* \file buffers.c
- * General framebuffer-related functions, like glClear, glScissor, etc.
+ * glReadBuffer, DrawBuffer functions.
*/
#define BAD_MASK ~0u
-#if _HAVE_FULL_GL
-void GLAPIENTRY
-_mesa_ClearIndex( GLfloat c )
-{
- GET_CURRENT_CONTEXT(ctx);
- ASSERT_OUTSIDE_BEGIN_END(ctx);
-
- if (ctx->Color.ClearIndex == (GLuint) c)
- return;
-
- FLUSH_VERTICES(ctx, _NEW_COLOR);
- ctx->Color.ClearIndex = (GLuint) c;
-
- if (!ctx->Visual.rgbMode && ctx->Driver.ClearIndex) {
- /* it's OK to call glClearIndex in RGBA mode but it should be a NOP */
- (*ctx->Driver.ClearIndex)( ctx, ctx->Color.ClearIndex );
- }
-}
-#endif
-
-
-/**
- * Specify the clear values for the color buffers.
- *
- * \param red red color component.
- * \param green green color component.
- * \param blue blue color component.
- * \param alpha alpha component.
- *
- * \sa glClearColor().
- *
- * Clamps the parameters and updates gl_colorbuffer_attrib::ClearColor. On a
- * change, flushes the vertices and notifies the driver via the
- * dd_function_table::ClearColor callback.
- */
-void GLAPIENTRY
-_mesa_ClearColor( GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha )
-{
- GLfloat tmp[4];
- GET_CURRENT_CONTEXT(ctx);
- ASSERT_OUTSIDE_BEGIN_END(ctx);
-
- tmp[0] = CLAMP(red, 0.0F, 1.0F);
- tmp[1] = CLAMP(green, 0.0F, 1.0F);
- tmp[2] = CLAMP(blue, 0.0F, 1.0F);
- tmp[3] = CLAMP(alpha, 0.0F, 1.0F);
-
- if (TEST_EQ_4V(tmp, ctx->Color.ClearColor))
- return; /* no change */
-
- FLUSH_VERTICES(ctx, _NEW_COLOR);
- COPY_4V(ctx->Color.ClearColor, tmp);
-
- if (ctx->Visual.rgbMode && ctx->Driver.ClearColor) {
- /* it's OK to call glClearColor in CI mode but it should be a NOP */
- (*ctx->Driver.ClearColor)(ctx, ctx->Color.ClearColor);
- }
-}
-
-
-/**
- * Clear buffers.
- *
- * \param mask bit-mask indicating the buffers to be cleared.
- *
- * Flushes the vertices and verifies the parameter. If __GLcontextRec::NewState
- * is set then calls _mesa_update_state() to update gl_frame_buffer::_Xmin,
- * etc. If the rasterization mode is set to GL_RENDER then requests the driver
- * to clear the buffers, via the dd_function_table::Clear callback.
- */
-void GLAPIENTRY
-_mesa_Clear( GLbitfield mask )
-{
- GET_CURRENT_CONTEXT(ctx);
- ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
-
- FLUSH_CURRENT(ctx, 0);
-
- if (MESA_VERBOSE & VERBOSE_API)
- _mesa_debug(ctx, "glClear 0x%x\n", mask);
-
- if (mask & ~(GL_COLOR_BUFFER_BIT |
- GL_DEPTH_BUFFER_BIT |
- GL_STENCIL_BUFFER_BIT |
- GL_ACCUM_BUFFER_BIT)) {
- /* invalid bit set */
- _mesa_error( ctx, GL_INVALID_VALUE, "glClear(0x%x)", mask);
- return;
- }
-
- if (ctx->NewState) {
- _mesa_update_state( ctx ); /* update _Xmin, etc */
- }
-
- if (ctx->DrawBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
- _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
- "glClear(incomplete framebuffer)");
- return;
- }
-
- if (ctx->DrawBuffer->Width == 0 || ctx->DrawBuffer->Height == 0 ||
- ctx->DrawBuffer->_Xmin >= ctx->DrawBuffer->_Xmax ||
- ctx->DrawBuffer->_Ymin >= ctx->DrawBuffer->_Ymax)
- return;
-
- if (ctx->RenderMode == GL_RENDER) {
- GLbitfield bufferMask;
-
- /* don't clear depth buffer if depth writing disabled */
- if (!ctx->Depth.Mask)
- mask &= ~GL_DEPTH_BUFFER_BIT;
-
- /* Build the bitmask to send to device driver's Clear function.
- * Note that the GL_COLOR_BUFFER_BIT flag will expand to 0, 1, 2 or 4
- * of the BUFFER_BIT_FRONT/BACK_LEFT/RIGHT flags, or one of the
- * BUFFER_BIT_COLORn flags.
- */
- bufferMask = 0;
- if (mask & GL_COLOR_BUFFER_BIT) {
- GLuint i;
- for (i = 0; i < ctx->DrawBuffer->_NumColorDrawBuffers; i++) {
- bufferMask |= (1 << ctx->DrawBuffer->_ColorDrawBufferIndexes[i]);
- }
- }
-
- if ((mask & GL_DEPTH_BUFFER_BIT)
- && ctx->DrawBuffer->Visual.haveDepthBuffer) {
- bufferMask |= BUFFER_BIT_DEPTH;
- }
-
- if ((mask & GL_STENCIL_BUFFER_BIT)
- && ctx->DrawBuffer->Visual.haveStencilBuffer) {
- bufferMask |= BUFFER_BIT_STENCIL;
- }
-
- if ((mask & GL_ACCUM_BUFFER_BIT)
- && ctx->DrawBuffer->Visual.haveAccumBuffer) {
- bufferMask |= BUFFER_BIT_ACCUM;
- }
-
- ASSERT(ctx->Driver.Clear);
- ctx->Driver.Clear(ctx, bufferMask);
- }
-}
-
-
-
/**
* Return bitmask of BUFFER_BIT_* flags indicating which color buffers are
* available to the rendering context (for drawing or reading).
#include "mtypes.h"
-extern void GLAPIENTRY
-_mesa_ClearIndex( GLfloat c );
-
-extern void GLAPIENTRY
-_mesa_ClearColor( GLclampf red, GLclampf green,
- GLclampf blue, GLclampf alpha );
-
-extern void GLAPIENTRY
-_mesa_Clear( GLbitfield mask );
-
extern void GLAPIENTRY
_mesa_DrawBuffer( GLenum mode );
--- /dev/null
+/*
+ * Mesa 3-D graphics library
+ * Version: 7.1
+ *
+ * Copyright (C) 1999-2007 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.
+ */
+
+
+/**
+ * \file clear.c
+ * glClearColor, glClearIndex, glClear() functions.
+ */
+
+
+
+#include "glheader.h"
+#include "clear.h"
+#include "context.h"
+#include "colormac.h"
+#include "state.h"
+
+
+
+#if _HAVE_FULL_GL
+void GLAPIENTRY
+_mesa_ClearIndex( GLfloat c )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ if (ctx->Color.ClearIndex == (GLuint) c)
+ return;
+
+ FLUSH_VERTICES(ctx, _NEW_COLOR);
+ ctx->Color.ClearIndex = (GLuint) c;
+
+ if (!ctx->Visual.rgbMode && ctx->Driver.ClearIndex) {
+ /* it's OK to call glClearIndex in RGBA mode but it should be a NOP */
+ (*ctx->Driver.ClearIndex)( ctx, ctx->Color.ClearIndex );
+ }
+}
+#endif
+
+
+/**
+ * Specify the clear values for the color buffers.
+ *
+ * \param red red color component.
+ * \param green green color component.
+ * \param blue blue color component.
+ * \param alpha alpha component.
+ *
+ * \sa glClearColor().
+ *
+ * Clamps the parameters and updates gl_colorbuffer_attrib::ClearColor. On a
+ * change, flushes the vertices and notifies the driver via the
+ * dd_function_table::ClearColor callback.
+ */
+void GLAPIENTRY
+_mesa_ClearColor( GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha )
+{
+ GLfloat tmp[4];
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
+
+ tmp[0] = CLAMP(red, 0.0F, 1.0F);
+ tmp[1] = CLAMP(green, 0.0F, 1.0F);
+ tmp[2] = CLAMP(blue, 0.0F, 1.0F);
+ tmp[3] = CLAMP(alpha, 0.0F, 1.0F);
+
+ if (TEST_EQ_4V(tmp, ctx->Color.ClearColor))
+ return; /* no change */
+
+ FLUSH_VERTICES(ctx, _NEW_COLOR);
+ COPY_4V(ctx->Color.ClearColor, tmp);
+
+ if (ctx->Visual.rgbMode && ctx->Driver.ClearColor) {
+ /* it's OK to call glClearColor in CI mode but it should be a NOP */
+ (*ctx->Driver.ClearColor)(ctx, ctx->Color.ClearColor);
+ }
+}
+
+
+/**
+ * Clear buffers.
+ *
+ * \param mask bit-mask indicating the buffers to be cleared.
+ *
+ * Flushes the vertices and verifies the parameter. If __GLcontextRec::NewState
+ * is set then calls _mesa_update_state() to update gl_frame_buffer::_Xmin,
+ * etc. If the rasterization mode is set to GL_RENDER then requests the driver
+ * to clear the buffers, via the dd_function_table::Clear callback.
+ */
+void GLAPIENTRY
+_mesa_Clear( GLbitfield mask )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ FLUSH_CURRENT(ctx, 0);
+
+ if (MESA_VERBOSE & VERBOSE_API)
+ _mesa_debug(ctx, "glClear 0x%x\n", mask);
+
+ if (mask & ~(GL_COLOR_BUFFER_BIT |
+ GL_DEPTH_BUFFER_BIT |
+ GL_STENCIL_BUFFER_BIT |
+ GL_ACCUM_BUFFER_BIT)) {
+ /* invalid bit set */
+ _mesa_error( ctx, GL_INVALID_VALUE, "glClear(0x%x)", mask);
+ return;
+ }
+
+ if (ctx->NewState) {
+ _mesa_update_state( ctx ); /* update _Xmin, etc */
+ }
+
+ if (ctx->DrawBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
+ _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
+ "glClear(incomplete framebuffer)");
+ return;
+ }
+
+ if (ctx->DrawBuffer->Width == 0 || ctx->DrawBuffer->Height == 0 ||
+ ctx->DrawBuffer->_Xmin >= ctx->DrawBuffer->_Xmax ||
+ ctx->DrawBuffer->_Ymin >= ctx->DrawBuffer->_Ymax)
+ return;
+
+ if (ctx->RenderMode == GL_RENDER) {
+ GLbitfield bufferMask;
+
+ /* don't clear depth buffer if depth writing disabled */
+ if (!ctx->Depth.Mask)
+ mask &= ~GL_DEPTH_BUFFER_BIT;
+
+ /* Build the bitmask to send to device driver's Clear function.
+ * Note that the GL_COLOR_BUFFER_BIT flag will expand to 0, 1, 2 or 4
+ * of the BUFFER_BIT_FRONT/BACK_LEFT/RIGHT flags, or one of the
+ * BUFFER_BIT_COLORn flags.
+ */
+ bufferMask = 0;
+ if (mask & GL_COLOR_BUFFER_BIT) {
+ GLuint i;
+ for (i = 0; i < ctx->DrawBuffer->_NumColorDrawBuffers; i++) {
+ bufferMask |= (1 << ctx->DrawBuffer->_ColorDrawBufferIndexes[i]);
+ }
+ }
+
+ if ((mask & GL_DEPTH_BUFFER_BIT)
+ && ctx->DrawBuffer->Visual.haveDepthBuffer) {
+ bufferMask |= BUFFER_BIT_DEPTH;
+ }
+
+ if ((mask & GL_STENCIL_BUFFER_BIT)
+ && ctx->DrawBuffer->Visual.haveStencilBuffer) {
+ bufferMask |= BUFFER_BIT_STENCIL;
+ }
+
+ if ((mask & GL_ACCUM_BUFFER_BIT)
+ && ctx->DrawBuffer->Visual.haveAccumBuffer) {
+ bufferMask |= BUFFER_BIT_ACCUM;
+ }
+
+ ASSERT(ctx->Driver.Clear);
+ ctx->Driver.Clear(ctx, bufferMask);
+ }
+}
--- /dev/null
+/*
+ * Mesa 3-D graphics library
+ * Version: 7.1
+ *
+ * Copyright (C) 1999-2007 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.
+ */
+
+
+#ifndef CLEAR_H
+#define CLEAR_H
+
+
+#include "main/mtypes.h"
+
+
+extern void GLAPIENTRY
+_mesa_ClearIndex( GLfloat c );
+
+extern void GLAPIENTRY
+_mesa_ClearColor( GLclampf red, GLclampf green,
+ GLclampf blue, GLclampf alpha );
+
+extern void GLAPIENTRY
+_mesa_Clear( GLbitfield mask );
+
+
+#endif
blend.c \
bufferobj.c \
buffers.c \
+clear.c \
clip.c \
colortab.c \
context.c \
blend.h \
bufferobj.h \
buffers.h \
+clear.h \
clip.h \
colormac.h \
colortab.h \
main/blend.c \
main/bufferobj.c \
main/buffers.c \
+ main/clear.c \
main/clip.c \
main/colortab.c \
main/context.c \
projects / mesa.git / commitdiff