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Diffstat (limited to 'mesalib/src/mesa/main/drawpix.c')
-rw-r--r--mesalib/src/mesa/main/drawpix.c596
1 files changed, 279 insertions, 317 deletions
diff --git a/mesalib/src/mesa/main/drawpix.c b/mesalib/src/mesa/main/drawpix.c
index bf36a7e7a..40a1cb5df 100644
--- a/mesalib/src/mesa/main/drawpix.c
+++ b/mesalib/src/mesa/main/drawpix.c
@@ -1,317 +1,279 @@
-/*
- * Mesa 3-D graphics library
- * Version: 7.1
- *
- * Copyright (C) 1999-2008 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.
- */
-
-#include "glheader.h"
-#include "imports.h"
-#include "bufferobj.h"
-#include "context.h"
-#include "drawpix.h"
-#include "enums.h"
-#include "feedback.h"
-#include "framebuffer.h"
-#include "readpix.h"
-#include "state.h"
-#include "main/dispatch.h"
-
-
-#if FEATURE_drawpix
-
-
-/**
- * If a fragment program is enabled, check that it's valid.
- * \return GL_TRUE if valid, GL_FALSE otherwise
- */
-static GLboolean
-valid_fragment_program(GLcontext *ctx)
-{
- return !(ctx->FragmentProgram.Enabled && !ctx->FragmentProgram._Enabled);
-}
-
-
-/*
- * Execute glDrawPixels
- */
-static void GLAPIENTRY
-_mesa_DrawPixels( GLsizei width, GLsizei height,
- GLenum format, GLenum type, const GLvoid *pixels )
-{
- GET_CURRENT_CONTEXT(ctx);
- ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
-
- if (width < 0 || height < 0) {
- _mesa_error( ctx, GL_INVALID_VALUE, "glDrawPixels(width or height < 0" );
- return;
- }
-
- /* We're not using the current vertex program, and the driver may install
- * it's own.
- */
- _mesa_set_vp_override(ctx, GL_TRUE);
-
- if (ctx->NewState) {
- _mesa_update_state(ctx);
- }
-
- if (!valid_fragment_program(ctx)) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glDrawPixels (invalid fragment program)");
- goto end;
- }
-
- if (_mesa_error_check_format_type(ctx, format, type, GL_TRUE)) {
- /* the error was already recorded */
- goto end;
- }
-
- if (ctx->DrawBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
- _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
- "glDrawPixels(incomplete framebuffer)" );
- goto end;
- }
-
- if (!ctx->Current.RasterPosValid) {
- goto end; /* no-op, not an error */
- }
-
- if (ctx->RenderMode == GL_RENDER) {
- if (width > 0 && height > 0) {
- /* Round, to satisfy conformance tests (matches SGI's OpenGL) */
- GLint x = IROUND(ctx->Current.RasterPos[0]);
- GLint y = IROUND(ctx->Current.RasterPos[1]);
-
- if (ctx->Unpack.BufferObj->Name) {
- /* unpack from PBO */
- if (!_mesa_validate_pbo_access(2, &ctx->Unpack, width, height, 1,
- format, type, pixels)) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glDrawPixels(invalid PBO access)");
- goto end;
- }
- if (_mesa_bufferobj_mapped(ctx->Unpack.BufferObj)) {
- /* buffer is mapped - that's an error */
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glDrawPixels(PBO is mapped)");
- goto end;
- }
- }
-
- ctx->Driver.DrawPixels(ctx, x, y, width, height, format, type,
- &ctx->Unpack, pixels);
- }
- }
- else if (ctx->RenderMode == GL_FEEDBACK) {
- /* Feedback the current raster pos info */
- FLUSH_CURRENT( ctx, 0 );
- _mesa_feedback_token( ctx, (GLfloat) (GLint) GL_DRAW_PIXEL_TOKEN );
- _mesa_feedback_vertex( ctx,
- ctx->Current.RasterPos,
- ctx->Current.RasterColor,
- ctx->Current.RasterTexCoords[0] );
- }
- else {
- ASSERT(ctx->RenderMode == GL_SELECT);
- /* Do nothing. See OpenGL Spec, Appendix B, Corollary 6. */
- }
-
-end:
- _mesa_set_vp_override(ctx, GL_FALSE);
-}
-
-
-static void GLAPIENTRY
-_mesa_CopyPixels( GLint srcx, GLint srcy, GLsizei width, GLsizei height,
- GLenum type )
-{
- GET_CURRENT_CONTEXT(ctx);
- ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
-
- if (width < 0 || height < 0) {
- _mesa_error(ctx, GL_INVALID_VALUE, "glCopyPixels(width or height < 0)");
- return;
- }
-
- /* Note: more detailed 'type' checking is done by the
- * _mesa_source/dest_buffer_exists() calls below. That's where we
- * check if the stencil buffer exists, etc.
- */
- if (type != GL_COLOR &&
- type != GL_DEPTH &&
- type != GL_STENCIL &&
- type != GL_DEPTH_STENCIL) {
- _mesa_error(ctx, GL_INVALID_ENUM, "glCopyPixels(type=%s)",
- _mesa_lookup_enum_by_nr(type));
- return;
- }
-
- /* We're not using the current vertex program, and the driver may install
- * it's own.
- */
- _mesa_set_vp_override(ctx, GL_TRUE);
-
- if (ctx->NewState) {
- _mesa_update_state(ctx);
- }
-
- if (!valid_fragment_program(ctx)) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glCopyPixels (invalid fragment program)");
- goto end;
- }
-
- if (ctx->DrawBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT ||
- ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
- _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
- "glCopyPixels(incomplete framebuffer)" );
- goto end;
- }
-
- if (!_mesa_source_buffer_exists(ctx, type) ||
- !_mesa_dest_buffer_exists(ctx, type)) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glCopyPixels(missing source or dest buffer)");
- goto end;
- }
-
- if (!ctx->Current.RasterPosValid || width ==0 || height == 0) {
- goto end; /* no-op, not an error */
- }
-
- if (ctx->RenderMode == GL_RENDER) {
- /* Round to satisfy conformance tests (matches SGI's OpenGL) */
- if (width > 0 && height > 0) {
- GLint destx = IROUND(ctx->Current.RasterPos[0]);
- GLint desty = IROUND(ctx->Current.RasterPos[1]);
- ctx->Driver.CopyPixels( ctx, srcx, srcy, width, height, destx, desty,
- type );
- }
- }
- else if (ctx->RenderMode == GL_FEEDBACK) {
- FLUSH_CURRENT( ctx, 0 );
- _mesa_feedback_token( ctx, (GLfloat) (GLint) GL_COPY_PIXEL_TOKEN );
- _mesa_feedback_vertex( ctx,
- ctx->Current.RasterPos,
- ctx->Current.RasterColor,
- ctx->Current.RasterTexCoords[0] );
- }
- else {
- ASSERT(ctx->RenderMode == GL_SELECT);
- /* Do nothing. See OpenGL Spec, Appendix B, Corollary 6. */
- }
-
-end:
- _mesa_set_vp_override(ctx, GL_FALSE);
-}
-
-
-static void GLAPIENTRY
-_mesa_Bitmap( GLsizei width, GLsizei height,
- GLfloat xorig, GLfloat yorig, GLfloat xmove, GLfloat ymove,
- const GLubyte *bitmap )
-{
- GET_CURRENT_CONTEXT(ctx);
- ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
-
- if (width < 0 || height < 0) {
- _mesa_error( ctx, GL_INVALID_VALUE, "glBitmap(width or height < 0)" );
- return;
- }
-
- if (!ctx->Current.RasterPosValid) {
- return; /* do nothing */
- }
-
- if (ctx->NewState) {
- _mesa_update_state(ctx);
- }
-
- if (!valid_fragment_program(ctx)) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glBitmap (invalid fragment program)");
- return;
- }
-
- if (ctx->DrawBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
- _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
- "glBitmap(incomplete framebuffer)");
- return;
- }
-
- if (ctx->RenderMode == GL_RENDER) {
- /* Truncate, to satisfy conformance tests (matches SGI's OpenGL). */
- if (width > 0 && height > 0) {
- const GLfloat epsilon = 0.0001F;
- GLint x = IFLOOR(ctx->Current.RasterPos[0] + epsilon - xorig);
- GLint y = IFLOOR(ctx->Current.RasterPos[1] + epsilon - yorig);
-
- if (ctx->Unpack.BufferObj->Name) {
- /* unpack from PBO */
- if (!_mesa_validate_pbo_access(2, &ctx->Unpack, width, height, 1,
- GL_COLOR_INDEX, GL_BITMAP,
- (GLvoid *) bitmap)) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glBitmap(invalid PBO access)");
- return;
- }
- if (_mesa_bufferobj_mapped(ctx->Unpack.BufferObj)) {
- /* buffer is mapped - that's an error */
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glBitmap(PBO is mapped)");
- return;
- }
- }
-
- ctx->Driver.Bitmap( ctx, x, y, width, height, &ctx->Unpack, bitmap );
- }
- }
-#if _HAVE_FULL_GL
- else if (ctx->RenderMode == GL_FEEDBACK) {
- FLUSH_CURRENT(ctx, 0);
- _mesa_feedback_token( ctx, (GLfloat) (GLint) GL_BITMAP_TOKEN );
- _mesa_feedback_vertex( ctx,
- ctx->Current.RasterPos,
- ctx->Current.RasterColor,
- ctx->Current.RasterTexCoords[0] );
- }
- else {
- ASSERT(ctx->RenderMode == GL_SELECT);
- /* Do nothing. See OpenGL Spec, Appendix B, Corollary 6. */
- }
-#endif
-
- /* update raster position */
- ctx->Current.RasterPos[0] += xmove;
- ctx->Current.RasterPos[1] += ymove;
-}
-
-
-void
-_mesa_init_drawpix_dispatch(struct _glapi_table *disp)
-{
- SET_Bitmap(disp, _mesa_Bitmap);
- SET_CopyPixels(disp, _mesa_CopyPixels);
- SET_DrawPixels(disp, _mesa_DrawPixels);
-}
-
-
-#endif /* FEATURE_drawpix */
+/*
+ * Mesa 3-D graphics library
+ * Version: 7.1
+ *
+ * Copyright (C) 1999-2008 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.
+ */
+
+#include "glheader.h"
+#include "imports.h"
+#include "bufferobj.h"
+#include "context.h"
+#include "drawpix.h"
+#include "enums.h"
+#include "feedback.h"
+#include "framebuffer.h"
+#include "readpix.h"
+#include "state.h"
+#include "dispatch.h"
+
+
+#if FEATURE_drawpix
+
+
+/*
+ * Execute glDrawPixels
+ */
+static void GLAPIENTRY
+_mesa_DrawPixels( GLsizei width, GLsizei height,
+ GLenum format, GLenum type, const GLvoid *pixels )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ if (width < 0 || height < 0) {
+ _mesa_error( ctx, GL_INVALID_VALUE, "glDrawPixels(width or height < 0" );
+ return;
+ }
+
+ /* We're not using the current vertex program, and the driver may install
+ * its own. Note: this may dirty some state.
+ */
+ _mesa_set_vp_override(ctx, GL_TRUE);
+
+ /* Note: this call does state validation */
+ if (!_mesa_valid_to_render(ctx, "glDrawPixels")) {
+ goto end; /* the error code was recorded */
+ }
+
+ if (_mesa_error_check_format_type(ctx, format, type, GL_TRUE)) {
+ goto end; /* the error code was recorded */
+ }
+
+ if (!ctx->Current.RasterPosValid) {
+ goto end; /* no-op, not an error */
+ }
+
+ if (ctx->RenderMode == GL_RENDER) {
+ if (width > 0 && height > 0) {
+ /* Round, to satisfy conformance tests (matches SGI's OpenGL) */
+ GLint x = IROUND(ctx->Current.RasterPos[0]);
+ GLint y = IROUND(ctx->Current.RasterPos[1]);
+
+ if (ctx->Unpack.BufferObj->Name) {
+ /* unpack from PBO */
+ if (!_mesa_validate_pbo_access(2, &ctx->Unpack, width, height, 1,
+ format, type, pixels)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glDrawPixels(invalid PBO access)");
+ goto end;
+ }
+ if (_mesa_bufferobj_mapped(ctx->Unpack.BufferObj)) {
+ /* buffer is mapped - that's an error */
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glDrawPixels(PBO is mapped)");
+ goto end;
+ }
+ }
+
+ ctx->Driver.DrawPixels(ctx, x, y, width, height, format, type,
+ &ctx->Unpack, pixels);
+ }
+ }
+ else if (ctx->RenderMode == GL_FEEDBACK) {
+ /* Feedback the current raster pos info */
+ FLUSH_CURRENT( ctx, 0 );
+ _mesa_feedback_token( ctx, (GLfloat) (GLint) GL_DRAW_PIXEL_TOKEN );
+ _mesa_feedback_vertex( ctx,
+ ctx->Current.RasterPos,
+ ctx->Current.RasterColor,
+ ctx->Current.RasterTexCoords[0] );
+ }
+ else {
+ ASSERT(ctx->RenderMode == GL_SELECT);
+ /* Do nothing. See OpenGL Spec, Appendix B, Corollary 6. */
+ }
+
+end:
+ _mesa_set_vp_override(ctx, GL_FALSE);
+}
+
+
+static void GLAPIENTRY
+_mesa_CopyPixels( GLint srcx, GLint srcy, GLsizei width, GLsizei height,
+ GLenum type )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ if (width < 0 || height < 0) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glCopyPixels(width or height < 0)");
+ return;
+ }
+
+ /* Note: more detailed 'type' checking is done by the
+ * _mesa_source/dest_buffer_exists() calls below. That's where we
+ * check if the stencil buffer exists, etc.
+ */
+ if (type != GL_COLOR &&
+ type != GL_DEPTH &&
+ type != GL_STENCIL &&
+ type != GL_DEPTH_STENCIL) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "glCopyPixels(type=%s)",
+ _mesa_lookup_enum_by_nr(type));
+ return;
+ }
+
+ /* We're not using the current vertex program, and the driver may install
+ * it's own. Note: this may dirty some state.
+ */
+ _mesa_set_vp_override(ctx, GL_TRUE);
+
+ /* Note: this call does state validation */
+ if (!_mesa_valid_to_render(ctx, "glCopyPixels")) {
+ goto end; /* the error code was recorded */
+ }
+
+ /* Check read buffer's status (draw buffer was already checked) */
+ if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
+ _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
+ "glCopyPixels(incomplete framebuffer)" );
+ goto end;
+ }
+
+ if (!_mesa_source_buffer_exists(ctx, type) ||
+ !_mesa_dest_buffer_exists(ctx, type)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glCopyPixels(missing source or dest buffer)");
+ goto end;
+ }
+
+ if (!ctx->Current.RasterPosValid || width ==0 || height == 0) {
+ goto end; /* no-op, not an error */
+ }
+
+ if (ctx->RenderMode == GL_RENDER) {
+ /* Round to satisfy conformance tests (matches SGI's OpenGL) */
+ if (width > 0 && height > 0) {
+ GLint destx = IROUND(ctx->Current.RasterPos[0]);
+ GLint desty = IROUND(ctx->Current.RasterPos[1]);
+ ctx->Driver.CopyPixels( ctx, srcx, srcy, width, height, destx, desty,
+ type );
+ }
+ }
+ else if (ctx->RenderMode == GL_FEEDBACK) {
+ FLUSH_CURRENT( ctx, 0 );
+ _mesa_feedback_token( ctx, (GLfloat) (GLint) GL_COPY_PIXEL_TOKEN );
+ _mesa_feedback_vertex( ctx,
+ ctx->Current.RasterPos,
+ ctx->Current.RasterColor,
+ ctx->Current.RasterTexCoords[0] );
+ }
+ else {
+ ASSERT(ctx->RenderMode == GL_SELECT);
+ /* Do nothing. See OpenGL Spec, Appendix B, Corollary 6. */
+ }
+
+end:
+ _mesa_set_vp_override(ctx, GL_FALSE);
+}
+
+
+static void GLAPIENTRY
+_mesa_Bitmap( GLsizei width, GLsizei height,
+ GLfloat xorig, GLfloat yorig, GLfloat xmove, GLfloat ymove,
+ const GLubyte *bitmap )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ if (width < 0 || height < 0) {
+ _mesa_error( ctx, GL_INVALID_VALUE, "glBitmap(width or height < 0)" );
+ return;
+ }
+
+ if (!ctx->Current.RasterPosValid) {
+ return; /* do nothing */
+ }
+
+ /* Note: this call does state validation */
+ if (!_mesa_valid_to_render(ctx, "glBitmap")) {
+ /* the error code was recorded */
+ return;
+ }
+
+ if (ctx->RenderMode == GL_RENDER) {
+ /* Truncate, to satisfy conformance tests (matches SGI's OpenGL). */
+ if (width > 0 && height > 0) {
+ const GLfloat epsilon = 0.0001F;
+ GLint x = IFLOOR(ctx->Current.RasterPos[0] + epsilon - xorig);
+ GLint y = IFLOOR(ctx->Current.RasterPos[1] + epsilon - yorig);
+
+ if (ctx->Unpack.BufferObj->Name) {
+ /* unpack from PBO */
+ if (!_mesa_validate_pbo_access(2, &ctx->Unpack, width, height, 1,
+ GL_COLOR_INDEX, GL_BITMAP,
+ (GLvoid *) bitmap)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glBitmap(invalid PBO access)");
+ return;
+ }
+ if (_mesa_bufferobj_mapped(ctx->Unpack.BufferObj)) {
+ /* buffer is mapped - that's an error */
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glBitmap(PBO is mapped)");
+ return;
+ }
+ }
+
+ ctx->Driver.Bitmap( ctx, x, y, width, height, &ctx->Unpack, bitmap );
+ }
+ }
+#if _HAVE_FULL_GL
+ else if (ctx->RenderMode == GL_FEEDBACK) {
+ FLUSH_CURRENT(ctx, 0);
+ _mesa_feedback_token( ctx, (GLfloat) (GLint) GL_BITMAP_TOKEN );
+ _mesa_feedback_vertex( ctx,
+ ctx->Current.RasterPos,
+ ctx->Current.RasterColor,
+ ctx->Current.RasterTexCoords[0] );
+ }
+ else {
+ ASSERT(ctx->RenderMode == GL_SELECT);
+ /* Do nothing. See OpenGL Spec, Appendix B, Corollary 6. */
+ }
+#endif
+
+ /* update raster position */
+ ctx->Current.RasterPos[0] += xmove;
+ ctx->Current.RasterPos[1] += ymove;
+}
+
+
+void
+_mesa_init_drawpix_dispatch(struct _glapi_table *disp)
+{
+ SET_Bitmap(disp, _mesa_Bitmap);
+ SET_CopyPixels(disp, _mesa_CopyPixels);
+ SET_DrawPixels(disp, _mesa_DrawPixels);
+}
+
+
+#endif /* FEATURE_drawpix */