-/* $Id: drawpix.c,v 1.52 2001/04/10 15:25:45 brianp Exp $ */
-
/*
* Mesa 3-D graphics library
- * Version: 3.5
+ * Version: 7.1
*
- * Copyright (C) 1999-2001 Brian Paul All Rights Reserved.
+ * 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"),
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
-
-#ifdef PC_HEADER
-#include "all.h"
-#else
#include "glheader.h"
-#include "colormac.h"
+#include "imports.h"
+#include "bufferobj.h"
#include "context.h"
#include "drawpix.h"
#include "feedback.h"
-#include "macros.h"
-#include "mem.h"
-#include "mmath.h"
+#include "framebuffer.h"
+#include "image.h"
+#include "readpix.h"
#include "state.h"
-#include "mtypes.h"
-#endif
-
-
+#if _HAVE_FULL_GL
/*
* Execute glDrawPixels
*/
-void
+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 (ctx->RenderMode==GL_RENDER) {
- GLint x, y;
- if (!pixels || !ctx->Current.RasterPosValid) {
- return;
- }
+ if (width < 0 || height < 0) {
+ _mesa_error( ctx, GL_INVALID_VALUE, "glDrawPixels(width or height < 0" );
+ return;
+ }
- if (ctx->NewState) {
- _mesa_update_state(ctx);
- }
+ if (ctx->NewState) {
+ _mesa_update_state(ctx);
+ }
+
+ if (ctx->FragmentProgram.Enabled && !ctx->FragmentProgram._Enabled) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glDrawPixels (invalid fragment program)");
+ return;
+ }
+
+ if (_mesa_error_check_format_type(ctx, format, type, GL_TRUE)) {
+ /* found an error */
+ return;
+ }
+
+ if (ctx->DrawBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
+ _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
+ "glDrawPixels(incomplete framebuffer)" );
+ return;
+ }
+
+ if (!ctx->Current.RasterPosValid) {
+ return;
+ }
+
+ if (ctx->RenderMode == GL_RENDER) {
+ /* Round, to satisfy conformance tests (matches SGI's OpenGL) */
+ GLint x = IROUND(ctx->Current.RasterPos[0]);
+ GLint y = IROUND(ctx->Current.RasterPos[1]);
- x = IROUND(ctx->Current.RasterPos[0]);
- 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)");
+ return;
+ }
+ if (ctx->Unpack.BufferObj->Pointer) {
+ /* buffer is mapped - that's an error */
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glDrawPixels(PBO is mapped)");
+ return;
+ }
+ }
- ctx->OcclusionResult = GL_TRUE;
ctx->Driver.DrawPixels(ctx, x, y, width, height, format, type,
&ctx->Unpack, pixels);
}
- else if (ctx->RenderMode==GL_FEEDBACK) {
- if (ctx->Current.RasterPosValid) {
- GLfloat color[4];
- GLfloat texcoord[4], invq;
-
- FLUSH_CURRENT(ctx, 0);
- color[0] = CHAN_TO_FLOAT(ctx->Current.Color[0]);
- color[1] = CHAN_TO_FLOAT(ctx->Current.Color[1]);
- color[2] = CHAN_TO_FLOAT(ctx->Current.Color[2]);
- color[3] = CHAN_TO_FLOAT(ctx->Current.Color[3]);
- invq = 1.0F / ctx->Current.Texcoord[0][3];
- texcoord[0] = ctx->Current.Texcoord[0][0] * invq;
- texcoord[1] = ctx->Current.Texcoord[0][1] * invq;
- texcoord[2] = ctx->Current.Texcoord[0][2] * invq;
- texcoord[3] = ctx->Current.Texcoord[0][3];
- FEEDBACK_TOKEN( ctx, (GLfloat) (GLint) GL_DRAW_PIXEL_TOKEN );
- _mesa_feedback_vertex( ctx,
+ else if (ctx->RenderMode == GL_FEEDBACK) {
+ /* Feedback the current raster pos info */
+ FLUSH_CURRENT( ctx, 0 );
+ FEEDBACK_TOKEN( ctx, (GLfloat) (GLint) GL_DRAW_PIXEL_TOKEN );
+ _mesa_feedback_vertex( ctx,
ctx->Current.RasterPos,
- color, ctx->Current.Index, texcoord );
- }
+ ctx->Current.RasterColor,
+ ctx->Current.RasterIndex,
+ ctx->Current.RasterTexCoords[0] );
+ }
+ else {
+ ASSERT(ctx->RenderMode == GL_SELECT);
+ /* Do nothing. See OpenGL Spec, Appendix B, Corollary 6. */
+ }
+}
+
+
+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 (ctx->NewState) {
+ _mesa_update_state(ctx);
+ }
+
+ if (ctx->FragmentProgram.Enabled && !ctx->FragmentProgram._Enabled) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glCopyPixels (invalid fragment program)");
+ return;
+ }
+
+ if (width < 0 || height < 0) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "glCopyPixels(width or height < 0)");
+ return;
+ }
+
+ 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)" );
+ return;
+ }
+
+ 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)");
+ return;
+ }
+
+ if (!ctx->Current.RasterPosValid || width ==0 || height == 0) {
+ return;
+ }
+
+ if (ctx->RenderMode == GL_RENDER) {
+ /* Round to satisfy conformance tests (matches SGI's OpenGL) */
+ 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 );
+ FEEDBACK_TOKEN( ctx, (GLfloat) (GLint) GL_COPY_PIXEL_TOKEN );
+ _mesa_feedback_vertex( ctx,
+ ctx->Current.RasterPos,
+ ctx->Current.RasterColor,
+ ctx->Current.RasterIndex,
+ ctx->Current.RasterTexCoords[0] );
+ }
+ else {
+ ASSERT(ctx->RenderMode == GL_SELECT);
+ /* Do nothing. See OpenGL Spec, Appendix B, Corollary 6. */
+ }
+}
+
+#endif /* _HAVE_FULL_GL */
+
+
+
+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 (ctx->FragmentProgram.Enabled && !ctx->FragmentProgram._Enabled) {
+ _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;
}
- else if (ctx->RenderMode==GL_SELECT) {
- if (ctx->Current.RasterPosValid) {
- _mesa_update_hitflag( ctx, ctx->Current.RasterPos[2] );
+
+ if (ctx->RenderMode == GL_RENDER) {
+ /* Truncate, to satisfy conformance tests (matches SGI's OpenGL). */
+ 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 (ctx->Unpack.BufferObj->Pointer) {
+ /* 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);
+ FEEDBACK_TOKEN( ctx, (GLfloat) (GLint) GL_BITMAP_TOKEN );
+ _mesa_feedback_vertex( ctx,
+ ctx->Current.RasterPos,
+ ctx->Current.RasterColor,
+ ctx->Current.RasterIndex,
+ 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;
}
+
+
+
+#if 0 /* experimental */
+/*
+ * Execute glDrawDepthPixelsMESA(). This function accepts both a color
+ * image and depth (Z) image. Rasterization produces fragments with
+ * color and Z taken from these images. This function is intended for
+ * Z-compositing. Normally, this operation requires two glDrawPixels
+ * calls with stencil testing.
+ */
+void GLAPIENTRY
+_mesa_DrawDepthPixelsMESA( GLsizei width, GLsizei height,
+ GLenum colorFormat, GLenum colorType,
+ const GLvoid *colors,
+ GLenum depthType, const GLvoid *depths )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ if (width < 0 || height < 0) {
+ _mesa_error( ctx, GL_INVALID_VALUE,
+ "glDrawDepthPixelsMESA(width or height < 0" );
+ return;
+ }
+
+ if (!ctx->Current.RasterPosValid) {
+ return;
+ }
+
+ if (ctx->NewState) {
+ _mesa_update_state(ctx);
+ }
+
+ if (ctx->DrawBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
+ _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
+ "glDrawDepthPixelsMESA(incomplete framebuffer)");
+ return;
+ }
+
+ if (ctx->RenderMode == GL_RENDER) {
+ /* Round, to satisfy conformance tests (matches SGI's OpenGL) */
+ GLint x = IROUND(ctx->Current.RasterPos[0]);
+ GLint y = IROUND(ctx->Current.RasterPos[1]);
+ ctx->Driver.DrawDepthPixelsMESA(ctx, x, y, width, height,
+ colorFormat, colorType, colors,
+ depthType, depths, &ctx->Unpack);
+ }
+ else if (ctx->RenderMode == GL_FEEDBACK) {
+ /* Feedback the current raster pos info */
+ FLUSH_CURRENT( ctx, 0 );
+ FEEDBACK_TOKEN( ctx, (GLfloat) (GLint) GL_DRAW_PIXEL_TOKEN );
+ _mesa_feedback_vertex( ctx,
+ ctx->Current.RasterPos,
+ ctx->Current.RasterColor,
+ ctx->Current.RasterIndex,
+ ctx->Current.RasterTexCoords[0] );
+ }
+ else {
+ ASSERT(ctx->RenderMode == GL_SELECT);
+ /* Do nothing. See OpenGL Spec, Appendix B, Corollary 6. */
+ }
+}
+
+#endif
projects / mesa.git / blobdiff