-/* $Id: drawpix.c,v 1.4 1999/10/19 20:33:57 brianp Exp $ */
-
/*
* Mesa 3-D graphics library
- * Version: 3.1
- *
- * Copyright (C) 1999 Brian Paul All Rights Reserved.
- *
+ * 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
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
-
-
-
-
-#ifdef PC_HEADER
-#include "all.h"
-#else
-#ifndef XFree86Server
-#include <assert.h>
-#include <stdlib.h>
-#include <string.h>
-#else
-#include "GL/xf86glx.h"
-#endif
+#include "glheader.h"
+#include "imports.h"
+#include "bufferobj.h"
#include "context.h"
#include "drawpix.h"
#include "feedback.h"
+#include "framebuffer.h"
#include "image.h"
-#include "macros.h"
-#include "mmath.h"
-#include "pixel.h"
-#include "span.h"
-#include "stencil.h"
-#include "types.h"
-#include "zoom.h"
-#ifdef XFree86Server
-#include "GL/xf86glx.h"
-#endif
-#endif
-
-
-
-/* TODO: apply texture mapping to fragments */
+#include "state.h"
-/*
- * Try to do a fast glDrawPixels. Conditions include:
- * not using a display list
- * simple pixel unpacking
- * no raster ops
- * etc....
- * Return: GL_TRUE if success, GL_FALSE if slow path must be used instead
+/**
+ * Do error checking of the format/type parameters to glReadPixels and
+ * glDrawPixels.
+ * \param drawing if GL_TRUE do checking for DrawPixels, else do checking
+ * for ReadPixels.
+ * \return GL_TRUE if error detected, GL_FALSE if no errors
*/
-GLboolean gl_direct_DrawPixels( GLcontext *ctx,
- const struct gl_pixelstore_attrib *unpack,
- GLsizei width, GLsizei height,
- GLenum format, GLenum type,
- const GLvoid *pixels )
+static GLboolean
+error_check_format_type(GLcontext *ctx, GLenum format, GLenum type,
+ GLboolean drawing)
{
- GLubyte rgb[MAX_WIDTH][3];
- GLubyte rgba[MAX_WIDTH][4];
-
- ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH_WITH_RETVAL(ctx, "glDrawPixels",
- GL_FALSE);
-
+ const char *readDraw = drawing ? "Draw" : "Read";
- if (!ctx->Current.RasterPosValid) {
- /* no-op */
+ if (ctx->Extensions.EXT_packed_depth_stencil
+ && type == GL_UNSIGNED_INT_24_8_EXT
+ && format != GL_DEPTH_STENCIL_EXT) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "gl%sPixels(format is not GL_DEPTH_STENCIL_EXT)", readDraw);
return GL_TRUE;
}
- if (ctx->NewState) {
- gl_update_state(ctx);
+ /* basic combinations test */
+ if (!_mesa_is_legal_format_and_type(ctx, format, type)) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "gl%sPixels(format or type)", readDraw);
+ return GL_TRUE;
}
- /* see if device driver can do the drawpix */
- if (ctx->Driver.DrawPixels) {
- GLint x = (GLint) (ctx->Current.RasterPos[0] + 0.5F);
- GLint y = (GLint) (ctx->Current.RasterPos[1] + 0.5F);
- if ((*ctx->Driver.DrawPixels)(ctx, x, y, width, height, format, type,
- unpack, pixels))
+ /* additional checks */
+ switch (format) {
+ case GL_RED:
+ case GL_GREEN:
+ case GL_BLUE:
+ case GL_ALPHA:
+ case GL_LUMINANCE:
+ case GL_LUMINANCE_ALPHA:
+ case GL_RGB:
+ case GL_BGR:
+ case GL_RGBA:
+ case GL_BGRA:
+ case GL_ABGR_EXT:
+ if (drawing && !ctx->Visual.rgbMode) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glDrawPixels(drawing RGB pixels into color index buffer)");
return GL_TRUE;
- }
-
- if ((ctx->RasterMask&(~(SCISSOR_BIT|WINCLIP_BIT)))==0
- && ctx->Pixel.RedBias==0.0 && ctx->Pixel.RedScale==1.0
- && ctx->Pixel.GreenBias==0.0 && ctx->Pixel.GreenScale==1.0
- && ctx->Pixel.BlueBias==0.0 && ctx->Pixel.BlueScale==1.0
- && ctx->Pixel.AlphaBias==0.0 && ctx->Pixel.AlphaScale==1.0
- && ctx->Pixel.IndexShift==0 && ctx->Pixel.IndexOffset==0
- && ctx->Pixel.MapColorFlag==0
- && unpack->Alignment==1
- && !unpack->SwapBytes
- && !unpack->LsbFirst) {
-
- GLint destX = (GLint) (ctx->Current.RasterPos[0] + 0.5F);
- GLint destY = (GLint) (ctx->Current.RasterPos[1] + 0.5F);
- GLint drawWidth = width; /* actual width drawn */
- GLint drawHeight = height; /* actual height drawn */
- GLint skipPixels = unpack->SkipPixels;
- GLint skipRows = unpack->SkipRows;
- GLint rowLength;
- GLdepth zSpan[MAX_WIDTH]; /* only used when zooming */
- GLint zoomY0;
-
- if (unpack->RowLength > 0)
- rowLength = unpack->RowLength;
- else
- rowLength = width;
-
- /* If we're not using pixel zoom then do all clipping calculations
- * now. Otherwise, we'll let the gl_write_zoomed_*_span() functions
- * handle the clipping.
- */
- if (ctx->Pixel.ZoomX==1.0F && ctx->Pixel.ZoomY==1.0F) {
- /* horizontal clipping */
- if (destX < ctx->Buffer->Xmin) {
- skipPixels += (ctx->Buffer->Xmin - destX);
- drawWidth -= (ctx->Buffer->Xmin - destX);
- destX = ctx->Buffer->Xmin;
- }
- if (destX + drawWidth > ctx->Buffer->Xmax)
- drawWidth -= (destX + drawWidth - ctx->Buffer->Xmax - 1);
- if (drawWidth <= 0)
- return GL_TRUE;
-
- /* vertical clipping */
- if (destY < ctx->Buffer->Ymin) {
- skipRows += (ctx->Buffer->Ymin - destY);
- drawHeight -= (ctx->Buffer->Ymin - destY);
- destY = ctx->Buffer->Ymin;
- }
- if (destY + drawHeight > ctx->Buffer->Ymax)
- drawHeight -= (destY + drawHeight - ctx->Buffer->Ymax - 1);
- if (drawHeight <= 0)
- return GL_TRUE;
}
- else {
- /* setup array of fragment Z value to pass to zoom function */
- GLdepth z = (GLdepth) (ctx->Current.RasterPos[2] * DEPTH_SCALE);
- GLint i;
- assert(drawWidth < MAX_WIDTH);
- for (i=0; i<drawWidth; i++)
- zSpan[i] = z;
-
- /* save Y value of first row */
- zoomY0 = (GLint) (ctx->Current.RasterPos[1] + 0.5F);
+ if (!drawing && !_mesa_dest_buffer_exists(ctx, GL_COLOR)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glReadPixels(no color buffer)");
+ return GL_TRUE;
}
-
-
- /*
- * Ready to draw!
- * The window region at (destX, destY) of size (drawWidth, drawHeight)
- * will be written to.
- * We'll take pixel data from buffer pointed to by "pixels" but we'll
- * skip "skipRows" rows and skip "skipPixels" pixels/row.
- */
-
- if (format==GL_RGBA && type==GL_UNSIGNED_BYTE) {
- if (ctx->Visual->RGBAflag) {
- GLubyte *src = (GLubyte *) pixels
- + (skipRows * rowLength + skipPixels) * 4;
- if (ctx->Pixel.ZoomX==1.0F && ctx->Pixel.ZoomY==1.0F) {
- /* no zooming */
- GLint row;
- for (row=0; row<drawHeight; row++) {
- (*ctx->Driver.WriteRGBASpan)(ctx, drawWidth, destX, destY,
- (void *) src, NULL);
- src += rowLength * 4;
- destY++;
- }
- }
- else {
- /* with zooming */
- GLint row;
- for (row=0; row<drawHeight; row++) {
- gl_write_zoomed_rgba_span(ctx, drawWidth, destX, destY,
- zSpan, (void *) src, zoomY0);
- src += rowLength * 4;
- destY++;
- }
- }
- }
+ break;
+ case GL_COLOR_INDEX:
+ if (!drawing && ctx->Visual.rgbMode) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glReadPixels(reading color index format from RGB buffer)");
return GL_TRUE;
}
- else if (format==GL_RGB && type==GL_UNSIGNED_BYTE) {
- if (ctx->Visual->RGBAflag) {
- GLubyte *src = (GLubyte *) pixels
- + (skipRows * rowLength + skipPixels) * 3;
- if (ctx->Pixel.ZoomX==1.0F && ctx->Pixel.ZoomY==1.0F) {
- GLint row;
- for (row=0; row<drawHeight; row++) {
- (*ctx->Driver.WriteRGBSpan)(ctx, drawWidth, destX, destY,
- (void *) src, NULL);
- src += rowLength * 3;
- destY++;
- }
- }
- else {
- /* with zooming */
- GLint row;
- for (row=0; row<drawHeight; row++) {
- gl_write_zoomed_rgb_span(ctx, drawWidth, destX, destY,
- zSpan, (void *) src, zoomY0);
- src += rowLength * 3;
- destY++;
- }
- }
- }
+ if (!drawing && !_mesa_dest_buffer_exists(ctx, GL_COLOR)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glReadPixels(no color buffer)");
return GL_TRUE;
}
- else if (format==GL_LUMINANCE && type==GL_UNSIGNED_BYTE) {
- if (ctx->Visual->RGBAflag) {
- GLubyte *src = (GLubyte *) pixels
- + (skipRows * rowLength + skipPixels);
- if (ctx->Pixel.ZoomX==1.0F && ctx->Pixel.ZoomY==1.0F) {
- /* no zooming */
- GLint row;
- assert(drawWidth < MAX_WIDTH);
- for (row=0; row<drawHeight; row++) {
- GLint i;
- for (i=0;i<drawWidth;i++) {
- rgb[i][0] = src[i];
- rgb[i][1] = src[i];
- rgb[i][2] = src[i];
- }
- (*ctx->Driver.WriteRGBSpan)(ctx, drawWidth, destX, destY,
- (void *) rgb, NULL);
- src += rowLength;
- destY++;
- }
- }
- else {
- /* with zooming */
- GLint row;
- assert(drawWidth < MAX_WIDTH);
- for (row=0; row<drawHeight; row++) {
- GLint i;
- for (i=0;i<drawWidth;i++) {
- rgb[i][0] = src[i];
- rgb[i][1] = src[i];
- rgb[i][2] = src[i];
- }
- gl_write_zoomed_rgb_span(ctx, drawWidth, destX, destY,
- zSpan, (void *) rgb, zoomY0);
- src += rowLength;
- destY++;
- }
- }
- }
+ break;
+ case GL_STENCIL_INDEX:
+ if ((drawing && !_mesa_dest_buffer_exists(ctx, format)) ||
+ (!drawing && !_mesa_source_buffer_exists(ctx, format))) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "gl%sPixels(no stencil buffer)", readDraw);
return GL_TRUE;
}
- else if (format==GL_LUMINANCE_ALPHA && type==GL_UNSIGNED_BYTE) {
- if (ctx->Visual->RGBAflag) {
- GLubyte *src = (GLubyte *) pixels
- + (skipRows * rowLength + skipPixels)*2;
- if (ctx->Pixel.ZoomX==1.0F && ctx->Pixel.ZoomY==1.0F) {
- /* no zooming */
- GLint row;
- assert(drawWidth < MAX_WIDTH);
- for (row=0; row<drawHeight; row++) {
- GLint i;
- GLubyte *ptr = src;
- for (i=0;i<drawWidth;i++) {
- rgba[i][0] = *ptr;
- rgba[i][1] = *ptr;
- rgba[i][2] = *ptr++;
- rgba[i][3] = *ptr++;
- }
- (*ctx->Driver.WriteRGBASpan)(ctx, drawWidth, destX, destY,
- (void *) rgba, NULL);
- src += rowLength*2;
- destY++;
- }
- }
- else {
- /* with zooming */
- GLint row;
- assert(drawWidth < MAX_WIDTH);
- for (row=0; row<drawHeight; row++) {
- GLubyte *ptr = src;
- GLint i;
- for (i=0;i<drawWidth;i++) {
- rgba[i][0] = *ptr;
- rgba[i][1] = *ptr;
- rgba[i][2] = *ptr++;
- rgba[i][3] = *ptr++;
- }
- gl_write_zoomed_rgba_span(ctx, drawWidth, destX, destY,
- zSpan, (void *) rgba, zoomY0);
- src += rowLength*2;
- destY++;
- }
- }
- }
+ break;
+ case GL_DEPTH_COMPONENT:
+ if (!drawing && !_mesa_source_buffer_exists(ctx, format)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "gl%sPixels(no depth buffer)", readDraw);
return GL_TRUE;
}
- else if (format==GL_COLOR_INDEX && type==GL_UNSIGNED_BYTE) {
- GLubyte *src = (GLubyte *) pixels + skipRows * rowLength + skipPixels;
- if (ctx->Visual->RGBAflag) {
- /* convert CI data to RGBA */
- if (ctx->Pixel.ZoomX==1.0F && ctx->Pixel.ZoomY==1.0F) {
- /* no zooming */
- GLint row;
- for (row=0; row<drawHeight; row++) {
- assert(drawWidth < MAX_WIDTH);
- gl_map_ci8_to_rgba(ctx, drawWidth, src, rgba);
- (*ctx->Driver.WriteRGBASpan)(ctx, drawWidth, destX, destY,
- (const GLubyte (*)[4])rgba,
- NULL);
- src += rowLength;
- destY++;
- }
- return GL_TRUE;
- }
- else {
- /* with zooming */
- GLint row;
- for (row=0; row<drawHeight; row++) {
- assert(drawWidth < MAX_WIDTH);
- gl_map_ci8_to_rgba(ctx, drawWidth, src, rgba);
- gl_write_zoomed_rgba_span(ctx, drawWidth, destX, destY,
- zSpan, (void *) rgba, zoomY0);
- src += rowLength;
- destY++;
- }
- return GL_TRUE;
- }
- }
- else {
- /* write CI data to CI frame buffer */
- GLint row;
- if (ctx->Pixel.ZoomX==1.0F && ctx->Pixel.ZoomY==1.0F) {
- /* no zooming */
- for (row=0; row<drawHeight; row++) {
- (*ctx->Driver.WriteCI8Span)(ctx, drawWidth, destX, destY,
- src, NULL);
- src += rowLength;
- destY++;
- }
- return GL_TRUE;
- }
- else {
- /* with zooming */
- return GL_FALSE;
- }
- }
+ break;
+ case GL_DEPTH_STENCIL_EXT:
+ if (!ctx->Extensions.EXT_packed_depth_stencil ||
+ type != GL_UNSIGNED_INT_24_8_EXT) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "gl%sPixels(type)", readDraw);
+ return GL_TRUE;
}
- else {
- /* can't handle this pixel format and/or data type here */
- return GL_FALSE;
+ if ((drawing && !_mesa_dest_buffer_exists(ctx, format)) ||
+ (!drawing && !_mesa_source_buffer_exists(ctx, format))) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "gl%sPixels(no depth or stencil buffer)", readDraw);
+ return GL_TRUE;
}
+ break;
+ default:
+ /* this should have been caught in _mesa_is_legal_format_type() */
+ _mesa_problem(ctx, "unexpected format in _mesa_%sPixels", readDraw);
+ return GL_TRUE;
}
- else {
- /* can't do direct render, have to use slow path */
- return GL_FALSE;
- }
+
+ /* no errors */
+ return GL_FALSE;
}
+
+#if _HAVE_FULL_GL
/*
- * Do glDrawPixels of index pixels.
+ * Execute glDrawPixels
*/
-static void draw_index_pixels( GLcontext *ctx, GLint x, GLint y,
- const struct gl_image *image )
+void GLAPIENTRY
+_mesa_DrawPixels( GLsizei width, GLsizei height,
+ GLenum format, GLenum type, const GLvoid *pixels )
{
- GLint width, height, widthInBytes;
- const GLint desty = y;
- GLint i, j;
- GLdepth zspan[MAX_WIDTH];
- const GLboolean zoom = ctx->Pixel.ZoomX!=1.0 || ctx->Pixel.ZoomY!=1.0;
-
- assert(image);
- assert(image->Format == GL_COLOR_INDEX);
-
- width = image->Width;
- height = image->Height;
- if (image->Type == GL_BITMAP)
- widthInBytes = (width + 7) / 8;
- else
- widthInBytes = width;
-
- /* Fragment depth values */
- if (ctx->Depth.Test) {
- GLdepth zval = (GLdepth) (ctx->Current.RasterPos[2] * DEPTH_SCALE);
- for (i=0;i<width;i++) {
- zspan[i] = zval;
- }
- }
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
- /* process the image row by row */
- for (i=0;i<height;i++,y++) {
- GLuint ispan[MAX_WIDTH];
-
- /* convert to uints */
- switch (image->Type) {
- case GL_UNSIGNED_BYTE:
- {
- GLubyte *src = (GLubyte *) image->Data + i * width;
- for (j=0;j<width;j++) {
- ispan[j] = (GLuint) *src++;
- }
- }
- break;
- case GL_FLOAT:
- {
- GLfloat *src = (GLfloat *) image->Data + i * width;
- for (j=0;j<width;j++) {
- ispan[j] = (GLuint) (GLint) *src++;
- }
- }
- break;
- case GL_BITMAP:
- {
- GLubyte *src = (GLubyte *) image->Data + i * widthInBytes;
- for (j=0;j<width;j++) {
- ispan[j] = ( src[j >> 3] >> (7 - (j & 0x7)) ) & 1;
- }
- }
- break;
- default:
- gl_problem( ctx, "draw_index_pixels type" );
- return;
- }
-
- /* apply shift and offset */
- if (ctx->Pixel.IndexOffset || ctx->Pixel.IndexShift) {
- gl_shift_and_offset_ci( ctx, width, ispan );
- }
+ if (width < 0 || height < 0) {
+ _mesa_error( ctx, GL_INVALID_VALUE, "glDrawPixels(width or height < 0" );
+ return;
+ }
- if (ctx->Visual->RGBAflag) {
- /* Convert index to RGBA and write to frame buffer */
- GLubyte rgba[MAX_WIDTH][4];
- gl_map_ci_to_rgba( ctx, width, ispan, rgba );
- if (zoom) {
- gl_write_zoomed_rgba_span( ctx, width, x, y, zspan,
- (const GLubyte (*)[4])rgba, desty );
- }
- else {
- gl_write_rgba_span( ctx, width, x, y, zspan, rgba, GL_BITMAP );
- }
- }
- else {
- /* optionally apply index map then write to frame buffer */
- if (ctx->Pixel.MapColorFlag) {
- gl_map_ci(ctx, width, ispan);
- }
- if (zoom) {
- gl_write_zoomed_index_span( ctx, width, x, y, zspan, ispan, desty );
- }
- else {
- gl_write_index_span( ctx, width, x, y, zspan, ispan, GL_BITMAP );
- }
- }
+ 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 (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;
+ }
-/*
- * Do glDrawPixels of stencil image. The image datatype may either
- * be GLubyte or GLbitmap.
- */
-static void draw_stencil_pixels( GLcontext *ctx, GLint x, GLint y,
- const struct gl_image *image )
-{
- GLint widthInBytes, width, height;
- const GLint desty = y;
- GLint i;
- const GLboolean zoom = ctx->Pixel.ZoomX!=1.0 || ctx->Pixel.ZoomY!=1.0;
-
- if (image->Type != GL_BYTE &&
- image->Type != GL_UNSIGNED_BYTE &&
- image->Type != GL_SHORT &&
- image->Type != GL_UNSIGNED_SHORT &&
- image->Type != GL_INT &&
- image->Type != GL_UNSIGNED_INT &&
- image->Type != GL_FLOAT &&
- image->Type != GL_BITMAP) {
- gl_error( ctx, GL_INVALID_OPERATION, "glDrawPixels(stencil type)");
+ if (!ctx->Current.RasterPosValid) {
return;
}
- assert(image);
- assert(image->Format == GL_STENCIL_INDEX);
- assert(image->Type == GL_UNSIGNED_BYTE || image->Type == GL_BITMAP);
-
- if (image->Type == GL_UNSIGNED_BYTE)
- widthInBytes = image->Width;
- else
- widthInBytes = (image->Width + 7) / 8;
- width = image->Width;
- height = image->Height;
-
- /* process the image row by row */
- for (i=0;i<height;i++,y++) {
- GLstencil *src = (GLstencil*)image->Data + i * widthInBytes;
- GLstencil *stencilValues;
- GLstencil stencilCopy[MAX_WIDTH];
-
- if (image->Type == GL_BITMAP) {
- /* convert bitmap data to GLubyte (0 or 1) data */
- GLint j;
- for (j = 0; j < width; j++) {
- stencilCopy[j] = ( src[j >> 3] >> (7 - (j & 0x7)) ) & 1;
+ 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]);
+
+ 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;
}
- src = stencilCopy;
}
- if (ctx->Pixel.IndexOffset || ctx->Pixel.IndexShift
- || ctx->Pixel.MapStencilFlag) {
+ 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 );
+ 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. */
+ }
+}
- /* make copy of stencil values */
- if (src != stencilCopy)
- MEMCPY( stencilCopy, src, width * sizeof(GLstencil));
- /* apply shift and offset */
- if (ctx->Pixel.IndexOffset || ctx->Pixel.IndexShift) {
- gl_shift_and_offset_stencil( ctx, width, stencilCopy );
- }
+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);
- /* mapping */
- if (ctx->Pixel.MapStencilFlag) {
- gl_map_stencil( ctx, width, stencilCopy );
- }
+ if (ctx->NewState) {
+ _mesa_update_state(ctx);
+ }
- stencilValues = stencilCopy;
- }
- else {
- /* use stencil values in-place */
- stencilValues = src;
- }
+ if (ctx->FragmentProgram.Enabled && !ctx->FragmentProgram._Enabled) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glCopyPixels (invalid fragment program)");
+ return;
+ }
- /* write stencil values to stencil buffer */
- if (zoom) {
- gl_write_zoomed_stencil_span( ctx, (GLuint) width, x, y,
- stencilValues, desty );
- }
- else {
- gl_write_stencil_span( ctx, (GLuint) width, x, y, stencilValues );
- }
+ 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;
+ }
-/*
- * Do a glDrawPixels of depth values.
- */
-static void draw_depth_pixels( GLcontext *ctx, GLint x, GLint y,
- const struct gl_image *image )
-{
- GLint width, height;
- const GLint desty = y;
- GLubyte rgba[MAX_WIDTH][4];
- GLuint ispan[MAX_WIDTH];
- const GLboolean bias_or_scale = ctx->Pixel.DepthBias!=0.0 || ctx->Pixel.DepthScale!=1.0;
- const GLboolean zoom = ctx->Pixel.ZoomX!=1.0 || ctx->Pixel.ZoomY!=1.0;
-
- assert(image);
- assert(image->Format == GL_DEPTH_COMPONENT);
-
- width = image->Width;
- height = image->Height;
-
- /* Color or index */
- if (ctx->Visual->RGBAflag) {
- GLint r = (GLint) (ctx->Current.RasterColor[0] * 255.0F);
- GLint g = (GLint) (ctx->Current.RasterColor[1] * 255.0F);
- GLint b = (GLint) (ctx->Current.RasterColor[2] * 255.0F);
- GLint a = (GLint) (ctx->Current.RasterColor[3] * 255.0F);
- GLint i;
- for (i=0; i<width; i++) {
- rgba[i][RCOMP] = r;
- rgba[i][GCOMP] = g;
- rgba[i][BCOMP] = b;
- rgba[i][ACOMP] = a;
- }
+ if (!ctx->Current.RasterPosValid) {
+ 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 {
- GLint i;
- for (i=0;i<width;i++) {
- ispan[i] = ctx->Current.RasterIndex;
- }
+ ASSERT(ctx->RenderMode == GL_SELECT);
+ /* Do nothing. See OpenGL Spec, Appendix B, Corollary 6. */
}
+}
- if (image->Type==GL_UNSIGNED_SHORT && sizeof(GLdepth)==sizeof(GLushort)
- && !bias_or_scale && !zoom && ctx->Visual->RGBAflag) {
- /* Special case: directly write 16-bit depth values */
- GLint j;
- for (j=0;j<height;j++,y++) {
- GLdepth *zptr = (GLdepth *) image->Data + j * width;
- gl_write_rgba_span( ctx, width, x, y, zptr, rgba, GL_BITMAP );
- }
+#endif /* _HAVE_FULL_GL */
+
+
+
+void GLAPIENTRY
+_mesa_ReadPixels( GLint x, GLint y, GLsizei width, GLsizei height,
+ GLenum format, GLenum type, GLvoid *pixels )
+{
+ GET_CURRENT_CONTEXT(ctx);
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ if (width < 0 || height < 0) {
+ _mesa_error( ctx, GL_INVALID_VALUE,
+ "glReadPixels(width=%d height=%d)", width, height );
+ return;
}
- else if (image->Type==GL_UNSIGNED_INT && sizeof(GLdepth)==sizeof(GLuint)
- && !bias_or_scale && !zoom && ctx->Visual->RGBAflag) {
- /* Special case: directly write 32-bit depth values */
- GLint i, j;
- /* Compute shift value to scale 32-bit uints down to depth values. */
- GLuint shift = 0;
- GLuint max = MAX_DEPTH;
- while ((max&0x80000000)==0) {
- max = max << 1;
- shift++;
- }
- for (j=0;j<height;j++,y++) {
- GLdepth zspan[MAX_WIDTH];
- GLuint *zptr = (GLuint *) image->Data + j * width;
- for (i=0;i<width;i++) {
- zspan[i] = zptr[i] >> shift;
- }
- gl_write_rgba_span( ctx, width, x, y, zspan, rgba, GL_BITMAP );
- }
+
+ if (ctx->NewState)
+ _mesa_update_state(ctx);
+
+ if (error_check_format_type(ctx, format, type, GL_FALSE)) {
+ /* found an error */
+ return;
}
- else {
- /* General case (slower) */
- GLint i, j;
-
- /* process image row by row */
- for (i=0;i<height;i++,y++) {
- GLfloat depth[MAX_WIDTH];
- GLdepth zspan[MAX_WIDTH];
-
- switch (image->Type) {
- case GL_UNSIGNED_SHORT:
- {
- GLushort *src = (GLushort *) image->Data + i * width;
- for (j=0;j<width;j++) {
- depth[j] = USHORT_TO_FLOAT( *src++ );
- }
- }
- break;
- case GL_UNSIGNED_INT:
- {
- GLuint *src = (GLuint *) image->Data + i * width;
- for (j=0;j<width;j++) {
- depth[j] = UINT_TO_FLOAT( *src++ );
- }
- }
- break;
- case GL_FLOAT:
- {
- GLfloat *src = (GLfloat *) image->Data + i * width;
- for (j=0;j<width;j++) {
- depth[j] = *src++;
- }
- }
- break;
- default:
- gl_problem(ctx, "Bad type in draw_depth_pixels");
- return;
- }
- /* apply depth scale and bias */
- if (ctx->Pixel.DepthScale!=1.0 || ctx->Pixel.DepthBias!=0.0) {
- for (j=0;j<width;j++) {
- depth[j] = depth[j] * ctx->Pixel.DepthScale + ctx->Pixel.DepthBias;
- }
- }
+ if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
+ _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
+ "glReadPixels(incomplete framebuffer)" );
+ return;
+ }
- /* clamp depth values to [0,1] and convert from floats to integers */
- for (j=0;j<width;j++) {
- zspan[j] = (GLdepth) (CLAMP( depth[j], 0.0F, 1.0F ) * DEPTH_SCALE);
- }
+ if (!_mesa_source_buffer_exists(ctx, format)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glReadPixels(no readbuffer)");
+ return;
+ }
- if (ctx->Visual->RGBAflag) {
- if (zoom) {
- gl_write_zoomed_rgba_span( ctx, width, x, y, zspan,
- (const GLubyte (*)[4])rgba, desty );
- }
- else {
- gl_write_rgba_span( ctx, width, x, y, zspan, rgba, GL_BITMAP );
- }
- }
- else {
- if (zoom) {
- gl_write_zoomed_index_span( ctx, width, x, y, zspan,
- ispan, GL_BITMAP );
- }
- else {
- gl_write_index_span( ctx, width, x, y, zspan, ispan, GL_BITMAP );
- }
- }
+ if (ctx->Pack.BufferObj->Name) {
+ if (!_mesa_validate_pbo_access(2, &ctx->Pack, width, height, 1,
+ format, type, pixels)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glReadPixels(invalid PBO access)");
+ return;
+ }
+ if (ctx->Pack.BufferObj->Pointer) {
+ /* buffer is mapped - that's an error */
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glReadPixels(PBO is mapped)");
+ return;
}
}
-}
-
+ ctx->Driver.ReadPixels(ctx, x, y, width, height,
+ format, type, &ctx->Pack, pixels);
+}
-/* Simple unpacking parameters: */
-static struct gl_pixelstore_attrib NoUnpack = {
- 1, /* Alignment */
- 0, /* RowLength */
- 0, /* SkipPixels */
- 0, /* SkipRows */
- 0, /* ImageHeight */
- 0, /* SkipImages */
- GL_FALSE, /* SwapBytes */
- GL_FALSE /* LsbFirst */
-};
-/*
- * Do glDrawPixels of RGBA pixels.
- */
-static void draw_rgba_pixels( GLcontext *ctx, GLint x, GLint y,
- const struct gl_image *image )
+void GLAPIENTRY
+_mesa_Bitmap( GLsizei width, GLsizei height,
+ GLfloat xorig, GLfloat yorig, GLfloat xmove, GLfloat ymove,
+ const GLubyte *bitmap )
{
- GLint width, height;
- GLint i, j;
- const GLint desty = y;
- GLdepth zspan[MAX_WIDTH];
- GLboolean quickDraw;
- const GLboolean zoom = ctx->Pixel.ZoomX!=1.0 || ctx->Pixel.ZoomY!=1.0;
-
- assert(image);
-
- /* Try an optimized glDrawPixels first */
- if (gl_direct_DrawPixels(ctx, &NoUnpack, image->Width, image->Height,
- image->Format, image->Type, image->Data ))
+ 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;
+ }
- width = image->Width;
- height = image->Height;
+ if (!ctx->Current.RasterPosValid) {
+ return; /* do nothing */
+ }
- /* Fragment depth values */
- if (ctx->Depth.Test) {
- /* fill in array of z values */
- GLdepth z = (GLdepth) (ctx->Current.RasterPos[2] * DEPTH_SCALE);
- for (i=0;i<width;i++) {
- zspan[i] = z;
- }
+ if (ctx->NewState) {
+ _mesa_update_state(ctx);
}
- if (ctx->RasterMask==0 && !zoom && x>=0 && y>=0
- && x+width<=ctx->Buffer->Width && y+height<=ctx->Buffer->Height) {
- quickDraw = GL_TRUE;
+ if (ctx->FragmentProgram.Enabled && !ctx->FragmentProgram._Enabled) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glBitmap (invalid fragment program)");
+ return;
}
- else {
- quickDraw = GL_FALSE;
- }
-
- {
- /* General solution */
- GLboolean r_flag, g_flag, b_flag, a_flag, l_flag;
- GLuint components;
- GLubyte rgba[MAX_WIDTH][4];
- GLfloat rf[MAX_WIDTH];
- GLfloat gf[MAX_WIDTH];
- GLfloat bf[MAX_WIDTH];
- DEFARRAY(GLfloat,af,MAX_WIDTH);
- CHECKARRAY(af,return);
-
- r_flag = g_flag = b_flag = a_flag = l_flag = GL_FALSE;
- switch (image->Format) {
- case GL_RED:
- r_flag = GL_TRUE;
- components = 1;
- break;
- case GL_GREEN:
- g_flag = GL_TRUE;
- components = 1;
- break;
- case GL_BLUE:
- b_flag = GL_TRUE;
- components = 1;
- break;
- case GL_ALPHA:
- a_flag = GL_TRUE;
- components = 1;
- break;
- case GL_RGB:
- r_flag = g_flag = b_flag = GL_TRUE;
- components = 3;
- break;
- case GL_LUMINANCE:
- l_flag = GL_TRUE;
- components = 1;
- break;
- case GL_LUMINANCE_ALPHA:
- l_flag = a_flag = GL_TRUE;
- components = 2;
- break;
- case GL_RGBA:
- r_flag = g_flag = b_flag = a_flag = GL_TRUE;
- components = 4;
- break;
- default:
- gl_problem(ctx, "Bad type in draw_rgba_pixels");
- goto cleanup;
- }
- /* process the image row by row */
- for (i=0;i<height;i++,y++) {
- /* convert to floats */
- switch (image->Type) {
- case GL_UNSIGNED_BYTE:
- {
- GLubyte *src = (GLubyte *) image->Data + i * width * components;
- for (j=0;j<width;j++) {
- if (l_flag) {
- rf[j] = gf[j] = bf[j] = UBYTE_TO_FLOAT(*src++);
- }
- else {
- rf[j] = r_flag ? UBYTE_TO_FLOAT(*src++) : 0.0;
- gf[j] = g_flag ? UBYTE_TO_FLOAT(*src++) : 0.0;
- bf[j] = b_flag ? UBYTE_TO_FLOAT(*src++) : 0.0;
- }
- af[j] = a_flag ? UBYTE_TO_FLOAT(*src++) : 1.0;
- }
- }
- break;
- case GL_FLOAT:
- {
- GLfloat *src = (GLfloat *) image->Data + i * width * components;
- for (j=0;j<width;j++) {
- if (l_flag) {
- rf[j] = gf[j] = bf[j] = *src++;
- }
- else {
- rf[j] = r_flag ? *src++ : 0.0;
- gf[j] = g_flag ? *src++ : 0.0;
- bf[j] = b_flag ? *src++ : 0.0;
- }
- af[j] = a_flag ? *src++ : 1.0;
- }
- }
- break;
- default:
- gl_problem( ctx, "draw_rgba_pixels type" );
- goto cleanup;
- }
-
- /* apply scale and bias */
- if (ctx->Pixel.ScaleOrBiasRGBA) {
- gl_scale_and_bias_color(ctx, width, rf, gf, bf, af);
- }
-
- /* apply pixel mappings */
- if (ctx->Pixel.MapColorFlag) {
- gl_map_color(ctx, width, rf, gf, bf, af);
- }
-
- /* convert to integers */
- for (j=0;j<width;j++) {
- rgba[j][RCOMP] = (GLint) (rf[j] * 255.0F);
- rgba[j][GCOMP] = (GLint) (gf[j] * 255.0F);
- rgba[j][BCOMP] = (GLint) (bf[j] * 255.0F);
- rgba[j][ACOMP] = (GLint) (af[j] * 255.0F);
- }
-
- /* write to frame buffer */
- if (quickDraw) {
- (*ctx->Driver.WriteRGBASpan)( ctx, width, x, y,
- (const GLubyte (*)[4])rgba, NULL);
- }
- else if (zoom) {
- gl_write_zoomed_rgba_span( ctx, width, x, y, zspan,
- (const GLubyte (*)[4])rgba, desty );
+ 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). */
+ const GLfloat epsilon = 0.0001;
+ 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;
}
- else {
- gl_write_rgba_span( ctx, (GLuint) width, x, y, zspan, rgba, GL_BITMAP);
+ if (ctx->Unpack.BufferObj->Pointer) {
+ /* buffer is mapped - that's an error */
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glBitmap(PBO is mapped)");
+ return;
}
}
-cleanup:
- UNDEFARRAY(af);
+
+ 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 glDrawPixels
+ * 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 gl_DrawPixels( GLcontext* ctx, struct gl_image *image )
+void GLAPIENTRY
+_mesa_DrawDepthPixelsMESA( GLsizei width, GLsizei height,
+ GLenum colorFormat, GLenum colorType,
+ const GLvoid *colors,
+ GLenum depthType, const GLvoid *depths )
{
- ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glDrawPixels");
+ 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 (gl_image_error_test( ctx, image, "glDrawPixels" ))
+ if (!ctx->Current.RasterPosValid) {
return;
+ }
- if (ctx->RenderMode==GL_RENDER) {
- GLint x, y;
- if (!ctx->Current.RasterPosValid) {
- return;
- }
+ if (ctx->NewState) {
+ _mesa_update_state(ctx);
+ }
- x = (GLint) (ctx->Current.RasterPos[0] + 0.5F);
- y = (GLint) (ctx->Current.RasterPos[1] + 0.5F);
-
- switch (image->Format) {
- case GL_COLOR_INDEX:
- draw_index_pixels( ctx, x, y, image );
- break;
- case GL_STENCIL_INDEX:
- draw_stencil_pixels( ctx, x, y, image );
- break;
- case GL_DEPTH_COMPONENT:
- draw_depth_pixels( ctx, x, y, image );
- break;
- case GL_RED:
- case GL_GREEN:
- case GL_BLUE:
- case GL_ALPHA:
- case GL_RGB:
- case GL_LUMINANCE:
- case GL_LUMINANCE_ALPHA:
- case GL_RGBA:
- draw_rgba_pixels( ctx, x, y, image );
- break;
- default:
- gl_error( ctx, GL_INVALID_ENUM, "glDrawPixels" );
- return;
- }
+ 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) {
- if (ctx->Current.RasterPosValid) {
- GLfloat color[4];
- GLfloat texcoord[4], invq;
- UBYTE_RGBA_TO_FLOAT_RGBA(color, ctx->Current.ByteColor);
- 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 );
- gl_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 if (ctx->RenderMode==GL_SELECT) {
- if (ctx->Current.RasterPosValid) {
- gl_update_hitflag( ctx, ctx->Current.RasterPos[2] );
- }
+ else {
+ ASSERT(ctx->RenderMode == GL_SELECT);
+ /* Do nothing. See OpenGL Spec, Appendix B, Corollary 6. */
}
}
+#endif
projects / mesa.git / blobdiff