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Implementation of GL_EXT_pixel_buffer_object extension.

Browse source 
Note: extension may not be finalized yet - subject to change!
Note: implementation not fully suitable for h/w implementation yet.
This commit is contained in:
Brian Paul 2004-03-13 18:21:40 +00:00
parent 5498e8b9f3
commit 7a6b71ef29
22 changed files with 486 additions and 164 deletions
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12
src/mesa/drivers/x11/xm_dd.c
View file

@ -843,6 +843,12 @@ xmesa_DrawPixels_8R8G8B( GLcontext *ctx,
int srcX = unpack->SkipPixels;
int srcY = unpack->SkipRows;
int rowLength = unpack->RowLength ? unpack->RowLength : width;
pixels = _swrast_validate_pbo_access(unpack, width, height, 1,
format, type, (GLvoid *) pixels);
if (!pixels)
return;
if (_swrast_clip_pixelrect(ctx, &dstX, &dstY, &w, &h, &srcX, &srcY)) {
/* This is a little tricky since all coordinates up to now have
* been in the OpenGL bottom-to-top orientation. X is top-to-bottom
@ -918,6 +924,12 @@ xmesa_DrawPixels_5R6G5B( GLcontext *ctx,
int srcX = unpack->SkipPixels;
int srcY = unpack->SkipRows;
int rowLength = unpack->RowLength ? unpack->RowLength : width;
pixels = _swrast_validate_pbo_access(unpack, width, height, 1,
format, type, (GLvoid *) pixels);
if (!pixels)
return;
if (_swrast_clip_pixelrect(ctx, &dstX, &dstY, &w, &h, &srcX, &srcY)) {
/* This is a little tricky since all coordinates up to now have
* been in the OpenGL bottom-to-top orientation. X is top-to-bottom

19
src/mesa/main/attrib.c
View file

@ -28,6 +28,7 @@
#include "attrib.h"
#include "blend.h"
#include "buffers.h"
#include "bufferobj.h"
#include "colormac.h"
#include "colortab.h"
#include "context.h"
@ -1191,6 +1192,10 @@ _mesa_PushClientAttrib(GLbitfield mask)
if (mask & GL_CLIENT_PIXEL_STORE_BIT) {
struct gl_pixelstore_attrib *attr;
#if FEATURE_EXT_pixel_buffer_object
ctx->Pack.BufferObj->RefCount++;
ctx->Unpack.BufferObj->RefCount++;
#endif
/* packing attribs */
attr = MALLOC_STRUCT( gl_pixelstore_attrib );
MEMCPY( attr, &ctx->Pack, sizeof(struct gl_pixelstore_attrib) );
@ -1244,11 +1249,25 @@ _mesa_PopClientAttrib(void)
while (attr) {
switch (attr->kind) {
case GL_CLIENT_PACK_BIT:
#if FEATURE_EXT_pixel_buffer_object
ctx->Pack.BufferObj->RefCount--;
if (ctx->Pack.BufferObj->RefCount <= 0) {
_mesa_remove_buffer_object( ctx, ctx->Pack.BufferObj );
(*ctx->Driver.DeleteBuffer)( ctx, ctx->Pack.BufferObj );
}
#endif
MEMCPY( &ctx->Pack, attr->data,
sizeof(struct gl_pixelstore_attrib) );
ctx->NewState |= _NEW_PACKUNPACK;
break;
case GL_CLIENT_UNPACK_BIT:
#if FEATURE_EXT_pixel_buffer_object
ctx->Unpack.BufferObj->RefCount--;
if (ctx->Unpack.BufferObj->RefCount <= 0) {
_mesa_remove_buffer_object( ctx, ctx->Unpack.BufferObj );
(*ctx->Driver.DeleteBuffer)( ctx, ctx->Unpack.BufferObj );
}
#endif
MEMCPY( &ctx->Unpack, attr->data,
sizeof(struct gl_pixelstore_attrib) );
ctx->NewState |= _NEW_PACKUNPACK;

76
src/mesa/main/bufferobj.c
View file

@ -33,6 +33,7 @@
#include "glheader.h"
#include "hash.h"
#include "imports.h"
#include "image.h"
#include "context.h"
#include "bufferobj.h"
@ -60,6 +61,12 @@ buffer_object_get_target( GLcontext *ctx, GLenum target, const char * str )
case GL_ELEMENT_ARRAY_BUFFER_ARB:
bufObj = ctx->Array.ElementArrayBufferObj;
break;
case GL_PIXEL_PACK_BUFFER_EXT:
bufObj = ctx->Pack.BufferObj;
break;
case GL_PIXEL_UNPACK_BUFFER_EXT:
bufObj = ctx->Unpack.BufferObj;
break;
default:
_mesa_error(ctx, GL_INVALID_ENUM, "gl%s(target)", str);
return NULL;
@ -358,6 +365,59 @@ _mesa_init_buffer_objects( GLcontext *ctx )
}
/**
* When we're about to read pixel data out of a PBO (via glDrawPixels,
* glTexImage, etc) or write data into a PBO (via glReadPixels,
* glGetTexImage, etc) we call this function to check that we're not
* going to read out of bounds.
*
* \param ctx the rendering context
* \param width width of image to read/write
* \param height height of image to read/write
* \param depth depth of image to read/write
* \param format format of image to read/write
* \param type datatype of image to read/write
* \param ptr the user-provided pointer/offset
* \return GL_TRUE if the PBO access is OK, GL_FALSE if the access would
* go out of bounds.
*/
GLboolean
_mesa_validate_pbo_access(const struct gl_pixelstore_attrib *pack,
GLsizei width, GLsizei height, GLsizei depth,
GLenum format, GLenum type, const GLvoid *ptr)
{
GLvoid *start, *end;
ASSERT(pack->BufferObj->Name != 0);
if (pack->BufferObj->Size == 0)
/* no buffer! */
return GL_FALSE;
/* get address of first pixel we'll read */
start = _mesa_image_address(pack, ptr, width, height,
format, type, 0, 0, 0);
/* get address just past the last pixel we'll read */
end = _mesa_image_address(pack, ptr, width, height,
format, type, depth-1, height-1, width);
if ((const GLubyte *) start > (const GLubyte *) pack->BufferObj->Size) {
/* This will catch negative values / wrap-around */
return GL_FALSE;
}
if ((const GLubyte *) end > (const GLubyte *) pack->BufferObj->Size) {
/* Image read goes beyond end of buffer */
return GL_FALSE;
}
/* OK! */
return GL_TRUE;
}
/**********************************************************************/
/* API Functions */
@ -407,6 +467,15 @@ _mesa_BindBufferARB(GLenum target, GLuint buffer)
case GL_ELEMENT_ARRAY_BUFFER_ARB:
ctx->Array.ElementArrayBufferObj = newBufObj;
break;
case GL_PIXEL_PACK_BUFFER_EXT:
ctx->Pack.BufferObj = newBufObj;
break;
case GL_PIXEL_UNPACK_BUFFER_EXT:
ctx->Unpack.BufferObj = newBufObj;
break;
default:
_mesa_problem(ctx, "Bad target in _mesa_BindBufferARB");
return;
}
/* Pass BindBuffer call to device driver */
@ -504,6 +573,13 @@ _mesa_DeleteBuffersARB(GLsizei n, const GLuint *ids)
_mesa_BindBufferARB( GL_ELEMENT_ARRAY_BUFFER_ARB, 0 );
}
if (ctx->Pack.BufferObj == bufObj) {
_mesa_BindBufferARB( GL_PIXEL_PACK_BUFFER_EXT, 0 );
}
if (ctx->Unpack.BufferObj == bufObj) {
_mesa_BindBufferARB( GL_PIXEL_UNPACK_BUFFER_EXT, 0 );
}
/* decrement refcount and delete if <= 0 */
bufObj->DeletePending = GL_TRUE;
bufObj->RefCount--;

10
src/mesa/main/bufferobj.h
View file

@ -1,9 +1,8 @@
/*
* Mesa 3-D graphics library
* Version: 5.1
* Version: 6.1
*
* Copyright (C) 1999-2003 Brian Paul All Rights Reserved.
* Copyright (C) 1999-2004 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"),
@ -75,6 +74,11 @@ _mesa_buffer_map( GLcontext *ctx, GLenum target, GLenum access,
struct gl_buffer_object * bufObj );
extern GLboolean
_mesa_validate_pbo_access(const struct gl_pixelstore_attrib *pack,
GLsizei width, GLsizei height, GLsizei depth,
GLenum format, GLenum type, const GLvoid *ptr);
/*
* API functions

1
src/mesa/main/config.h
View file

@ -270,6 +270,7 @@
#define FEATURE_ARB_vertex_program _HAVE_FULL_GL
#define FEATURE_ARB_fragment_program _HAVE_FULL_GL
#define FEATURE_ARB_occlusion_query _HAVE_FULL_GL
#define FEATURE_EXT_pixel_buffer_object _HAVE_FULL_GL
#define FEATURE_MESA_program_debug _HAVE_FULL_GL
#define FEATURE_NV_fence _HAVE_FULL_GL
#define FEATURE_NV_fragment_program _HAVE_FULL_GL

124
src/mesa/main/dlist.c
View file

@ -618,7 +618,11 @@ static GLuint translate_id( GLsizei n, GLenum type, const GLvoid *list )
/***** Public *****/
/**********************************************************************/
void _mesa_init_lists( void )
/**
* Do one-time initialiazations for display lists.
*/
void
_mesa_init_lists( void )
{
static int init_flag = 0;
@ -789,6 +793,32 @@ void _mesa_init_lists( void )
}
/**
* Wrapper for _mesa_unpack_image() that handles pixel buffer objects.
* \todo This won't suffice when the PBO is really in VRAM/GPU memory.
*/
static GLvoid *
unpack_image( GLsizei width, GLsizei height, GLsizei depth,
GLenum format, GLenum type, const GLvoid *pixels,
const struct gl_pixelstore_attrib *unpack )
{
if (unpack->BufferObj->Name == 0) {
/* no PBO */
return _mesa_unpack_image(width, height, depth, format, type,
pixels, unpack);
}
else if (_mesa_validate_pbo_access(unpack, width, height, depth, format,
type, pixels)) {
const GLubyte *src = ADD_POINTERS(unpack->BufferObj->Data, pixels);
return _mesa_unpack_image(width, height, depth, format, type,
src, unpack);
}
/* bad access! */
return NULL;
}
/*
* Allocate space for a display list instruction.
* \param opcode - type of instruction
@ -1255,8 +1285,8 @@ static void GLAPIENTRY save_ColorTable( GLenum target, GLenum internalFormat,
format, type, table );
}
else {
GLvoid *image = _mesa_unpack_image(width, 1, 1, format, type, table,
&ctx->Unpack);
GLvoid *image = unpack_image(width, 1, 1, format, type, table,
&ctx->Unpack);
Node *n;
ASSERT_OUTSIDE_SAVE_BEGIN_END_AND_FLUSH(ctx);
n = ALLOC_INSTRUCTION( ctx, OPCODE_COLOR_TABLE, 6 );
@ -1344,8 +1374,8 @@ static void GLAPIENTRY save_ColorSubTable( GLenum target, GLsizei start, GLsizei
const GLvoid *table)
{
GET_CURRENT_CONTEXT(ctx);
GLvoid *image = _mesa_unpack_image(count, 1, 1, format, type, table,
&ctx->Unpack);
GLvoid *image = unpack_image(count, 1, 1, format, type, table,
&ctx->Unpack);
Node *n;
ASSERT_OUTSIDE_SAVE_BEGIN_END_AND_FLUSH(ctx);
n = ALLOC_INSTRUCTION( ctx, OPCODE_COLOR_SUB_TABLE, 6 );
@ -1415,8 +1445,8 @@ save_ConvolutionFilter1D(GLenum target, GLenum internalFormat, GLsizei width,
GLenum format, GLenum type, const GLvoid *filter)
{
GET_CURRENT_CONTEXT(ctx);
GLvoid *image = _mesa_unpack_image(width, 1, 1, format, type, filter,
&ctx->Unpack);
GLvoid *image = unpack_image(width, 1, 1, format, type, filter,
&ctx->Unpack);
Node *n;
ASSERT_OUTSIDE_SAVE_BEGIN_END_AND_FLUSH(ctx);
n = ALLOC_INSTRUCTION( ctx, OPCODE_CONVOLUTION_FILTER_1D, 6 );
@ -1444,8 +1474,8 @@ save_ConvolutionFilter2D(GLenum target, GLenum internalFormat,
GLenum type, const GLvoid *filter)
{
GET_CURRENT_CONTEXT(ctx);
GLvoid *image = _mesa_unpack_image(width, height, 1, format, type, filter,
&ctx->Unpack);
GLvoid *image = unpack_image(width, height, 1, format, type, filter,
&ctx->Unpack);
Node *n;
ASSERT_OUTSIDE_SAVE_BEGIN_END_AND_FLUSH(ctx);
n = ALLOC_INSTRUCTION( ctx, OPCODE_CONVOLUTION_FILTER_2D, 7 );
@ -1809,8 +1839,8 @@ static void GLAPIENTRY save_DrawPixels( GLsizei width, GLsizei height,
const GLvoid *pixels )
{
GET_CURRENT_CONTEXT(ctx);
GLvoid *image = _mesa_unpack_image(width, height, 1, format, type,
pixels, &ctx->Unpack);
GLvoid *image = unpack_image(width, height, 1, format, type,
pixels, &ctx->Unpack);
Node *n;
ASSERT_OUTSIDE_SAVE_BEGIN_END_AND_FLUSH(ctx);
n = ALLOC_INSTRUCTION( ctx, OPCODE_DRAW_PIXELS, 5 );
@ -3365,8 +3395,8 @@ static void GLAPIENTRY save_TexImage1D( GLenum target,
border, format, type, pixels );
}
else {
GLvoid *image = _mesa_unpack_image(width, 1, 1, format, type,
pixels, &ctx->Unpack);
GLvoid *image = unpack_image(width, 1, 1, format, type,
pixels, &ctx->Unpack);
Node *n;
ASSERT_OUTSIDE_SAVE_BEGIN_END_AND_FLUSH(ctx);
n = ALLOC_INSTRUCTION( ctx, OPCODE_TEX_IMAGE1D, 8 );
@ -3404,8 +3434,8 @@ static void GLAPIENTRY save_TexImage2D( GLenum target,
height, border, format, type, pixels );
}
else {
GLvoid *image = _mesa_unpack_image(width, height, 1, format, type,
pixels, &ctx->Unpack);
GLvoid *image = unpack_image(width, height, 1, format, type,
pixels, &ctx->Unpack);
Node *n;
ASSERT_OUTSIDE_SAVE_BEGIN_END_AND_FLUSH(ctx);
n = ALLOC_INSTRUCTION( ctx, OPCODE_TEX_IMAGE2D, 9 );
@ -3446,8 +3476,8 @@ static void GLAPIENTRY save_TexImage3D( GLenum target,
}
else {
Node *n;
GLvoid *image = _mesa_unpack_image(width, height, depth, format, type,
pixels, &ctx->Unpack);
GLvoid *image = unpack_image(width, height, depth, format, type,
pixels, &ctx->Unpack);
ASSERT_OUTSIDE_SAVE_BEGIN_END_AND_FLUSH(ctx);
n = ALLOC_INSTRUCTION( ctx, OPCODE_TEX_IMAGE3D, 10 );
if (n) {
@ -3479,8 +3509,8 @@ static void GLAPIENTRY save_TexSubImage1D( GLenum target, GLint level, GLint xof
{
GET_CURRENT_CONTEXT(ctx);
Node *n;
GLvoid *image = _mesa_unpack_image(width, 1, 1, format, type,
pixels, &ctx->Unpack);
GLvoid *image = unpack_image(width, 1, 1, format, type,
pixels, &ctx->Unpack);
ASSERT_OUTSIDE_SAVE_BEGIN_END_AND_FLUSH(ctx);
n = ALLOC_INSTRUCTION( ctx, OPCODE_TEX_SUB_IMAGE1D, 7 );
if (n) {
@ -3510,8 +3540,8 @@ static void GLAPIENTRY save_TexSubImage2D( GLenum target, GLint level,
{
GET_CURRENT_CONTEXT(ctx);
Node *n;
GLvoid *image = _mesa_unpack_image(width, height, 1, format, type,
pixels, &ctx->Unpack);
GLvoid *image = unpack_image(width, height, 1, format, type,
pixels, &ctx->Unpack);
ASSERT_OUTSIDE_SAVE_BEGIN_END_AND_FLUSH(ctx);
n = ALLOC_INSTRUCTION( ctx, OPCODE_TEX_SUB_IMAGE2D, 9 );
if (n) {
@ -3543,8 +3573,8 @@ static void GLAPIENTRY save_TexSubImage3D( GLenum target, GLint level,
{
GET_CURRENT_CONTEXT(ctx);
Node *n;
GLvoid *image = _mesa_unpack_image(width, height, depth, format, type,
pixels, &ctx->Unpack);
GLvoid *image = unpack_image(width, height, depth, format, type,
pixels, &ctx->Unpack);
ASSERT_OUTSIDE_SAVE_BEGIN_END_AND_FLUSH(ctx);
n = ALLOC_INSTRUCTION( ctx, OPCODE_TEX_SUB_IMAGE3D, 11 );
if (n) {
@ -5283,8 +5313,8 @@ execute_list( GLcontext *ctx, GLuint list )
break;
case OPCODE_BITMAP:
{
struct gl_pixelstore_attrib save = ctx->Unpack;
ctx->Unpack = _mesa_native_packing;
const struct gl_pixelstore_attrib save = ctx->Unpack;
ctx->Unpack = ctx->DefaultPacking;
(*ctx->Exec->Bitmap)( (GLsizei) n[1].i, (GLsizei) n[2].i,
n[3].f, n[4].f, n[5].f, n[6].f, (const GLubyte *) n[7].data );
ctx->Unpack = save; /* restore */
@ -5354,8 +5384,8 @@ execute_list( GLcontext *ctx, GLuint list )
break;
case OPCODE_COLOR_TABLE:
{
struct gl_pixelstore_attrib save = ctx->Unpack;
ctx->Unpack = _mesa_native_packing;
const struct gl_pixelstore_attrib save = ctx->Unpack;
ctx->Unpack = ctx->DefaultPacking;
(*ctx->Exec->ColorTable)( n[1].e, n[2].e, n[3].i, n[4].e,
n[5].e, n[6].data );
ctx->Unpack = save; /* restore */
@ -5383,8 +5413,8 @@ execute_list( GLcontext *ctx, GLuint list )
break;
case OPCODE_COLOR_SUB_TABLE:
{
struct gl_pixelstore_attrib save = ctx->Unpack;
ctx->Unpack = _mesa_native_packing;
const struct gl_pixelstore_attrib save = ctx->Unpack;
ctx->Unpack = ctx->DefaultPacking;
(*ctx->Exec->ColorSubTable)( n[1].e, n[2].i, n[3].i,
n[4].e, n[5].e, n[6].data );
ctx->Unpack = save; /* restore */
@ -5392,8 +5422,8 @@ execute_list( GLcontext *ctx, GLuint list )
break;
case OPCODE_CONVOLUTION_FILTER_1D:
{
struct gl_pixelstore_attrib save = ctx->Unpack;
ctx->Unpack = _mesa_native_packing;
const struct gl_pixelstore_attrib save = ctx->Unpack;
ctx->Unpack = ctx->DefaultPacking;
(*ctx->Exec->ConvolutionFilter1D)( n[1].e, n[2].i, n[3].i,
n[4].e, n[5].e, n[6].data );
ctx->Unpack = save; /* restore */
@ -5401,8 +5431,8 @@ execute_list( GLcontext *ctx, GLuint list )
break;
case OPCODE_CONVOLUTION_FILTER_2D:
{
struct gl_pixelstore_attrib save = ctx->Unpack;
ctx->Unpack = _mesa_native_packing;
const struct gl_pixelstore_attrib save = ctx->Unpack;
ctx->Unpack = ctx->DefaultPacking;
(*ctx->Exec->ConvolutionFilter2D)( n[1].e, n[2].i, n[3].i,
n[4].i, n[5].e, n[6].e, n[7].data );
ctx->Unpack = save; /* restore */
@ -5486,8 +5516,8 @@ execute_list( GLcontext *ctx, GLuint list )
break;
case OPCODE_DRAW_PIXELS:
{
struct gl_pixelstore_attrib save = ctx->Unpack;
ctx->Unpack = _mesa_native_packing;
const struct gl_pixelstore_attrib save = ctx->Unpack;
ctx->Unpack = ctx->DefaultPacking;
(*ctx->Exec->DrawPixels)( n[1].i, n[2].i, n[3].e, n[4].e,
n[5].data );
ctx->Unpack = save; /* restore */
@ -5755,8 +5785,8 @@ execute_list( GLcontext *ctx, GLuint list )
break;
case OPCODE_TEX_IMAGE1D:
{
struct gl_pixelstore_attrib save = ctx->Unpack;
ctx->Unpack = _mesa_native_packing;
const struct gl_pixelstore_attrib save = ctx->Unpack;
ctx->Unpack = ctx->DefaultPacking;
(*ctx->Exec->TexImage1D)(
n[1].e, /* target */
n[2].i, /* level */
@ -5771,8 +5801,8 @@ execute_list( GLcontext *ctx, GLuint list )
break;
case OPCODE_TEX_IMAGE2D:
{
struct gl_pixelstore_attrib save = ctx->Unpack;
ctx->Unpack = _mesa_native_packing;
const struct gl_pixelstore_attrib save = ctx->Unpack;
ctx->Unpack = ctx->DefaultPacking;
(*ctx->Exec->TexImage2D)(
n[1].e, /* target */
n[2].i, /* level */
@ -5788,8 +5818,8 @@ execute_list( GLcontext *ctx, GLuint list )
break;
case OPCODE_TEX_IMAGE3D:
{
struct gl_pixelstore_attrib save = ctx->Unpack;
ctx->Unpack = _mesa_native_packing;
const struct gl_pixelstore_attrib save = ctx->Unpack;
ctx->Unpack = ctx->DefaultPacking;
(*ctx->Exec->TexImage3D)(
n[1].e, /* target */
n[2].i, /* level */
@ -5806,8 +5836,8 @@ execute_list( GLcontext *ctx, GLuint list )
break;
case OPCODE_TEX_SUB_IMAGE1D:
{
struct gl_pixelstore_attrib save = ctx->Unpack;
ctx->Unpack = _mesa_native_packing;
const struct gl_pixelstore_attrib save = ctx->Unpack;
ctx->Unpack = ctx->DefaultPacking;
(*ctx->Exec->TexSubImage1D)( n[1].e, n[2].i, n[3].i,
n[4].i, n[5].e,
n[6].e, n[7].data );
@ -5816,8 +5846,8 @@ execute_list( GLcontext *ctx, GLuint list )
break;
case OPCODE_TEX_SUB_IMAGE2D:
{
struct gl_pixelstore_attrib save = ctx->Unpack;
ctx->Unpack = _mesa_native_packing;
const struct gl_pixelstore_attrib save = ctx->Unpack;
ctx->Unpack = ctx->DefaultPacking;
(*ctx->Exec->TexSubImage2D)( n[1].e, n[2].i, n[3].i,
n[4].i, n[5].e,
n[6].i, n[7].e, n[8].e, n[9].data );
@ -5826,8 +5856,8 @@ execute_list( GLcontext *ctx, GLuint list )
break;
case OPCODE_TEX_SUB_IMAGE3D:
{
struct gl_pixelstore_attrib save = ctx->Unpack;
ctx->Unpack = _mesa_native_packing;
const struct gl_pixelstore_attrib save = ctx->Unpack;
ctx->Unpack = ctx->DefaultPacking;
(*ctx->Exec->TexSubImage3D)( n[1].e, n[2].i, n[3].i,
n[4].i, n[5].i, n[6].i, n[7].i,
n[8].i, n[9].e, n[10].e,

33
src/mesa/main/drawpix.c
View file

@ -1,6 +1,6 @@
/*
* Mesa 3-D graphics library
* Version: 6.0.1
* Version: 6.1
*
* Copyright (C) 1999-2004 Brian Paul All Rights Reserved.
*
@ -32,6 +32,7 @@
#include "state.h"
#include "mtypes.h"
#if _HAVE_FULL_GL
/*
@ -58,7 +59,7 @@ _mesa_DrawPixels( GLsizei width, GLsizei height,
if (ctx->RenderMode==GL_RENDER) {
GLint x, y;
if (!pixels || !ctx->Current.RasterPosValid) {
if (!ctx->Current.RasterPosValid) {
return;
}
@ -93,6 +94,7 @@ _mesa_DrawPixels( GLsizei width, GLsizei height,
}
}
void GLAPIENTRY
_mesa_CopyPixels( GLint srcx, GLint srcy, GLsizei width, GLsizei height,
GLenum type )
@ -148,7 +150,7 @@ _mesa_CopyPixels( GLint srcx, GLint srcy, GLsizei width, GLsizei height,
}
}
#endif
#endif /* _HAVE_FULL_GL */
@ -165,11 +167,6 @@ _mesa_ReadPixels( GLint x, GLint y, GLsizei width, GLsizei height,
return;
}
if (!pixels) {
_mesa_error( ctx, GL_INVALID_VALUE, "glReadPixels(pixels)" );
return;
}
if (ctx->NewState)
_mesa_update_state(ctx);
@ -179,8 +176,6 @@ _mesa_ReadPixels( GLint x, GLint y, GLsizei width, GLsizei height,
void GLAPIENTRY
_mesa_Bitmap( GLsizei width, GLsizei height,
GLfloat xorig, GLfloat yorig, GLfloat xmove, GLfloat ymove,
@ -206,18 +201,16 @@ _mesa_Bitmap( GLsizei width, GLsizei height,
}
if (ctx->RenderMode==GL_RENDER) {
if (bitmap) {
/* Truncate, to satisfy conformance tests (matches SGI's OpenGL). */
GLint x = IFLOOR(ctx->Current.RasterPos[0] - xorig);
GLint y = IFLOOR(ctx->Current.RasterPos[1] - yorig);
/* Truncate, to satisfy conformance tests (matches SGI's OpenGL). */
GLint x = IFLOOR(ctx->Current.RasterPos[0] - xorig);
GLint y = IFLOOR(ctx->Current.RasterPos[1] - yorig);
if (ctx->NewState) {
_mesa_update_state(ctx);
}
ctx->OcclusionResult = GL_TRUE;
ctx->Driver.Bitmap( ctx, x, y, width, height, &ctx->Unpack, bitmap );
if (ctx->NewState) {
_mesa_update_state(ctx);
}
ctx->OcclusionResult = GL_TRUE;
ctx->Driver.Bitmap( ctx, x, y, width, height, &ctx->Unpack, bitmap );
}
#if _HAVE_FULL_GL
else if (ctx->RenderMode==GL_FEEDBACK) {

4
src/mesa/main/extensions.c
View file

@ -83,6 +83,7 @@ static const struct {
{ OFF, "GL_EXT_multi_draw_arrays", F(EXT_multi_draw_arrays) },
{ ON, "GL_EXT_packed_pixels", F(EXT_packed_pixels) },
{ OFF, "GL_EXT_paletted_texture", F(EXT_paletted_texture) },
{ OFF, "GL_EXT_pixel_buffer_object", F(EXT_pixel_buffer_object) },
{ OFF, "GL_EXT_point_parameters", F(EXT_point_parameters) },
{ ON, "GL_EXT_polygon_offset", F(EXT_polygon_offset) },
{ ON, "GL_EXT_rescale_normal", F(EXT_rescale_normal) },
@ -195,6 +196,9 @@ _mesa_enable_sw_extensions(GLcontext *ctx)
ctx->Extensions.EXT_histogram = GL_TRUE;
ctx->Extensions.EXT_multi_draw_arrays = GL_TRUE;
ctx->Extensions.EXT_paletted_texture = GL_TRUE;
#if FEATURE_EXT_pixel_buffer_object
ctx->Extensions.EXT_pixel_buffer_object = GL_TRUE;
#endif
ctx->Extensions.EXT_point_parameters = GL_TRUE;
ctx->Extensions.EXT_shadow_funcs = GL_TRUE;
ctx->Extensions.EXT_secondary_color = GL_TRUE;

40
src/mesa/main/get.c
View file

@ -1609,6 +1609,16 @@ _mesa_GetBooleanv( GLenum pname, GLboolean *params )
*params = INT_TO_BOOL(ctx->Array.ElementArrayBufferObj->Name);
break;
#endif
#if FEATURE_EXT_pixel_buffer_object
case GL_PIXEL_PACK_BUFFER_BINDING_EXT:
CHECK_EXTENSION_B(EXT_pixel_buffer_object, pname);
*params = INT_TO_BOOL(ctx->Pack.BufferObj->Name);
break;
case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT:
CHECK_EXTENSION_B(EXT_pixel_buffer_object, pname);
*params = INT_TO_BOOL(ctx->Unpack.BufferObj->Name);
break;
#endif
#if FEATURE_ARB_fragment_program
case GL_FRAGMENT_PROGRAM_ARB:
@ -3149,6 +3159,16 @@ _mesa_GetDoublev( GLenum pname, GLdouble *params )
*params = (GLdouble) ctx->Array.ElementArrayBufferObj->Name;
break;
#endif
#if FEATURE_EXT_pixel_buffer_object
case GL_PIXEL_PACK_BUFFER_BINDING_EXT:
CHECK_EXTENSION_D(EXT_pixel_buffer_object, pname);
*params = (GLdouble) ctx->Pack.BufferObj->Name;
break;
case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT:
CHECK_EXTENSION_D(EXT_pixel_buffer_object, pname);
*params = (GLdouble) ctx->Unpack.BufferObj->Name;
break;
#endif
#if FEATURE_ARB_fragment_program
case GL_FRAGMENT_PROGRAM_ARB:
@ -4665,6 +4685,16 @@ _mesa_GetFloatv( GLenum pname, GLfloat *params )
*params = (GLfloat) ctx->Array.ElementArrayBufferObj->Name;
break;
#endif
#if FEATURE_EXT_pixel_buffer_object
case GL_PIXEL_PACK_BUFFER_BINDING_EXT:
CHECK_EXTENSION_F(EXT_pixel_buffer_object, pname);
*params = (GLfloat) ctx->Pack.BufferObj->Name;
break;
case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT:
CHECK_EXTENSION_F(EXT_pixel_buffer_object, pname);
*params = (GLfloat) ctx->Unpack.BufferObj->Name;
break;
#endif
#if FEATURE_ARB_fragment_program
case GL_FRAGMENT_PROGRAM_ARB:
@ -6219,6 +6249,16 @@ _mesa_GetIntegerv( GLenum pname, GLint *params )
*params = (GLint) ctx->Array.ElementArrayBufferObj->Name;
break;
#endif
#if FEATURE_EXT_pixel_buffer_object
case GL_PIXEL_PACK_BUFFER_BINDING_EXT:
CHECK_EXTENSION_I(EXT_pixel_buffer_object, pname);
*params = (GLint) ctx->Pack.BufferObj->Name;
break;
case GL_PIXEL_UNPACK_BUFFER_BINDING_EXT:
CHECK_EXTENSION_I(EXT_pixel_buffer_object, pname);
*params = (GLint) ctx->Unpack.BufferObj->Name;
break;
#endif
#if FEATURE_ARB_fragment_program
case GL_FRAGMENT_PROGRAM_ARB:

8
src/mesa/main/glheader.h
View file

@ -211,6 +211,14 @@ typedef struct tagPIXELFORMATDESCRIPTOR PIXELFORMATDESCRIPTOR, *PPIXELFORMATDESC
#include <GL/internal/glcore.h>
/* XXX temporary hack */
#ifndef GL_PIXEL_PACK_BUFFER_EXT
#define GL_PIXEL_PACK_BUFFER_EXT 0x88EB
#define GL_PIXEL_UNPACK_BUFFER_EXT 0x88EC
#define GL_PIXEL_PACK_BUFFER_BINDING_EXT 0x88ED
#define GL_PIXEL_UNPACK_BUFFER_BINDING_EXT 0x88EF
#endif
/* Disable unreachable code warnings for Watcom C++ */
#ifdef __WATCOMC__

34
src/mesa/main/image.c
View file

@ -5,9 +5,9 @@
/*
* Mesa 3-D graphics library
* Version: 5.1
* Version: 6.1
*
* Copyright (C) 1999-2003 Brian Paul All Rights Reserved.
* Copyright (C) 1999-2004 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"),
@ -29,6 +29,7 @@
#include "glheader.h"
#include "bufferobj.h"
#include "colormac.h"
#include "context.h"
#include "image.h"
@ -43,27 +44,6 @@
#define CEILING( A, B ) ( (A) % (B) == 0 ? (A)/(B) : (A)/(B)+1 )
/**
* Image packing parameters for Mesa's internal images.
*
* _mesa_unpack_image() returns image data in this format. When we execute
* image commands (glDrawPixels(), glTexImage(), etc) from within display lists
* we have to be sure to set the current unpacking parameters to these values!
*/
const struct gl_pixelstore_attrib _mesa_native_packing = {
1, /* Alignment */
0, /* RowLength */
0, /* SkipPixels */
0, /* SkipRows */
0, /* ImageHeight */
0, /* SkipImages */
GL_FALSE, /* SwapBytes */
GL_FALSE, /* LsbFirst */
GL_FALSE, /* ClientStorage */
GL_FALSE /* Invert */
};
/**
* Flip the 8 bits in each byte of the given array.
*
@ -3974,9 +3954,11 @@ _mesa_pack_depth_span( const GLcontext *ctx, GLuint n, GLvoid *dest,
}
/*
* Unpack image data. Apply byteswapping, byte flipping (bitmap).
* Return all image data in a contiguous block.
/**
* Unpack image data. Apply byte swapping, byte flipping (bitmap).
* Return all image data in a contiguous block. This is used when we
* compile glDrawPixels, glTexImage, etc into a display list. We
* need a copy of the data in a standard format.
*/
void *
_mesa_unpack_image( GLsizei width, GLsizei height, GLsizei depth,

3
src/mesa/main/image.h
View file

@ -35,9 +35,6 @@
#include "mtypes.h"
extern const struct gl_pixelstore_attrib _mesa_native_packing;
extern void
_mesa_swap2( GLushort *p, GLuint n );

16
src/mesa/main/mtypes.h
View file

@ -1319,17 +1319,18 @@ struct gl_attrib_node {
/**
* GL_ARB_vertex_buffer_object buffer object
* GL_ARB_vertex/pixel_buffer_object buffer object
*/
struct gl_buffer_object {
GLint RefCount;
GLuint Name;
GLenum Usage;
GLenum Access;
GLvoid *Pointer; /**< Only valid while buffer is mapped */
GLuint Size; /**< Size of data array in bytes */
GLubyte *Data; /**< The storage */
GLboolean DeletePending; /**< Deleted by user? */
GLvoid *Pointer; /**< Only valid while buffer is mapped */
GLuint Size; /**< Size of storage in bytes */
GLubyte *Data; /**< Location of storage either in RAM or VRAM. */
GLboolean OnCard; /**< Is buffer in VRAM? (hardware drivers) */
GLboolean DeletePending; /**< Deleted by user but RefCount > 0? */
};
@ -1348,6 +1349,7 @@ struct gl_pixelstore_attrib {
GLboolean LsbFirst;
GLboolean ClientStorage; /**< GL_APPLE_client_storage */
GLboolean Invert; /**< GL_MESA_pack_invert */
struct gl_buffer_object *BufferObj; /**< GL_ARB_pixel_buffer_object */
};
@ -1518,7 +1520,7 @@ enum register_file
PROGRAM_NAMED_PARAM,
PROGRAM_STATE_VAR,
PROGRAM_WRITE_ONLY,
PROGRAM_ADDRESS
PROGRAM_ADDRESS
};
@ -1852,6 +1854,7 @@ struct gl_extensions
GLboolean EXT_multi_draw_arrays;
GLboolean EXT_paletted_texture;
GLboolean EXT_packed_pixels;
GLboolean EXT_pixel_buffer_object;
GLboolean EXT_point_parameters;
GLboolean EXT_polygon_offset;
GLboolean EXT_rescale_normal;
@ -2264,6 +2267,7 @@ struct __GLcontextRec {
struct gl_array_attrib Array; /**< Vertex arrays */
struct gl_pixelstore_attrib Pack; /**< Pixel packing */
struct gl_pixelstore_attrib Unpack; /**< Pixel unpacking */
struct gl_pixelstore_attrib DefaultPacking; /**< Default params */
struct gl_evaluators EvalMap; /**< All evaluators */
struct gl_feedback Feedback; /**< Feedback */

30
src/mesa/main/pixel.c
View file

@ -24,6 +24,7 @@
#include "glheader.h"
#include "imports.h"
#include "image.h"
#include "colormac.h"
#include "context.h"
#include "macros.h"
@ -1682,7 +1683,8 @@ void _mesa_update_pixel( GLcontext *ctx, GLuint new_state )
/***** Initialization *****/
/**********************************************************************/
void _mesa_init_pixel( GLcontext * ctx )
void
_mesa_init_pixel( GLcontext * ctx )
{
int i;
@ -1774,6 +1776,9 @@ void _mesa_init_pixel( GLcontext * ctx )
ctx->Pack.LsbFirst = GL_FALSE;
ctx->Pack.ClientStorage = GL_FALSE;
ctx->Pack.Invert = GL_FALSE;
#if FEATURE_EXT_pixel_buffer_object
ctx->Pack.BufferObj = ctx->Array.NullBufferObj;
#endif
ctx->Unpack.Alignment = 4;
ctx->Unpack.RowLength = 0;
ctx->Unpack.ImageHeight = 0;
@ -1784,6 +1789,29 @@ void _mesa_init_pixel( GLcontext * ctx )
ctx->Unpack.LsbFirst = GL_FALSE;
ctx->Unpack.ClientStorage = GL_FALSE;
ctx->Unpack.Invert = GL_FALSE;
#if FEATURE_EXT_pixel_buffer_object
ctx->Unpack.BufferObj = ctx->Array.NullBufferObj;
#endif
/*
* _mesa_unpack_image() returns image data in this format. When we
* execute image commands (glDrawPixels(), glTexImage(), etc) from
* within display lists we have to be sure to set the current
* unpacking parameters to these values!
*/
ctx->DefaultPacking.Alignment = 1;
ctx->DefaultPacking.RowLength = 0;
ctx->DefaultPacking.SkipPixels = 0;
ctx->DefaultPacking.SkipRows = 0;
ctx->DefaultPacking.ImageHeight = 0;
ctx->DefaultPacking.SkipImages = 0;
ctx->DefaultPacking.SwapBytes = GL_FALSE;
ctx->DefaultPacking.LsbFirst = GL_FALSE;
ctx->DefaultPacking.ClientStorage = GL_FALSE;
ctx->DefaultPacking.Invert = GL_FALSE;
#if FEATURE_EXT_pixel_buffer_object
ctx->DefaultPacking.BufferObj = ctx->Array.NullBufferObj;
#endif
if (ctx->Visual.doubleBufferMode) {
ctx->Pixel.ReadBuffer = GL_BACK;

84
src/mesa/main/texstore.c
View file

@ -52,6 +52,7 @@
#include "glheader.h"
#include "bufferobj.h"
#include "colormac.h"
#include "context.h"
#include "convolve.h"
@ -391,7 +392,7 @@ transfer_teximage(GLcontext *ctx, GLuint dimensions,
_mesa_pack_rgba_span_float(ctx, convWidth,
(const GLfloat (*)[4]) srcf,
texDestFormat, CHAN_TYPE,
dest, &_mesa_native_packing,
dest, &ctx->DefaultPacking,
transferOps
& IMAGE_POST_CONVOLUTION_BITS);
srcf += convWidth * 4;
@ -519,7 +520,7 @@ _mesa_transfer_teximage(GLcontext *ctx, GLuint dimensions,
srcFormat = baseInternalFormat;
srcType = CHAN_TYPE;
srcAddr = tmpImage;
srcPacking = &_mesa_native_packing;
srcPacking = &ctx->DefaultPacking;
freeSourceData = GL_TRUE;
transferOps = 0; /* image transfer ops were completed */
}
@ -611,7 +612,7 @@ _mesa_transfer_teximage(GLcontext *ctx, GLuint dimensions,
srcFormat = tmpFormat;
srcType = CHAN_TYPE;
srcAddr = tmpImage;
srcPacking = &_mesa_native_packing;
srcPacking = &ctx->DefaultPacking;
freeSourceData = GL_TRUE;
}
@ -740,6 +741,58 @@ transfer_compressed_teximage(GLcontext *ctx, GLuint dimensions,
}
/**
* Validate acces to a PBO for texture data.
*
* \todo If the PBO is really resident in VRAM, this won't work; the
* device driver should check for that and do the right thing.
*/
static const GLvoid *
validate_pbo_teximage( GLsizei width, GLsizei height, GLsizei depth,
GLenum format, GLenum type, const GLvoid *pixels,
const struct gl_pixelstore_attrib *unpack )
{
if (unpack->BufferObj->Name == 0) {
/* no PBO */
return pixels;
}
else if (_mesa_validate_pbo_access(unpack, width, height, depth, format,
type, pixels)) {
return ADD_POINTERS(unpack->BufferObj->Data, pixels);
}
/* bad access! */
return NULL;
}
/**
* Validate that unpacking compressed texture image data from a PBO
* won't go out of bounds.
*
* \todo If the PBO is really resident in VRAM, this won't work; the
* device driver should check for that and do the right thing.
*/
static const GLvoid *
validate_pbo_compressed_teximage(GLsizei imageSize, const GLvoid *pixels,
const struct gl_pixelstore_attrib *packing)
{
if (packing->BufferObj->Name == 0) {
/* not using a PBO - return pointer unchanged */
return pixels;
}
else {
/* using a PBO */
if ((const GLubyte *) pixels + imageSize >
(const GLubyte *) packing->BufferObj->Size) {
/* out of bounds read! */
return NULL;
}
/* OK! */
return ADD_POINTERS(packing->BufferObj->Data, pixels);
}
}
/*
* This is the software fallback for Driver.TexImage1D()
@ -785,6 +838,7 @@ _mesa_store_teximage1d(GLcontext *ctx, GLenum target, GLint level,
return;
}
pixels = validate_pbo_teximage(width, 1, 1, format, type, pixels, packing);
if (!pixels)
return;
@ -862,6 +916,8 @@ _mesa_store_teximage2d(GLcontext *ctx, GLenum target, GLint level,
return;
}
pixels = validate_pbo_teximage(width, height, 1,
format, type, pixels, packing);
if (!pixels)
return;
@ -934,6 +990,8 @@ _mesa_store_teximage3d(GLcontext *ctx, GLenum target, GLint level,
return;
}
pixels = validate_pbo_teximage(width, height, depth,
format, type, pixels, packing);
if (!pixels)
return;
@ -980,6 +1038,11 @@ _mesa_store_texsubimage1d(GLcontext *ctx, GLenum target, GLint level,
struct gl_texture_object *texObj,
struct gl_texture_image *texImage)
{
pixels = validate_pbo_teximage(width, 1, 1,
format, type, pixels, packing);
if (!pixels)
return;
if (texImage->IsCompressed) {
GLint dstRowStride = _mesa_compressed_row_stride(texImage->IntFormat,
texImage->Width);
@ -1029,6 +1092,11 @@ _mesa_store_texsubimage2d(GLcontext *ctx, GLenum target, GLint level,
struct gl_texture_object *texObj,
struct gl_texture_image *texImage)
{
pixels = validate_pbo_teximage(width, height, 1,
format, type, pixels, packing);
if (!pixels)
return;
if (texImage->IsCompressed) {
GLint dstRowStride = _mesa_compressed_row_stride(texImage->IntFormat,
texImage->Width);
@ -1113,8 +1181,6 @@ _mesa_store_texsubimage3d(GLcontext *ctx, GLenum target, GLint level,
}
/*
* Fallback for Driver.CompressedTexImage1D()
*/
@ -1167,6 +1233,10 @@ _mesa_store_compressed_teximage2d(GLcontext *ctx, GLenum target, GLint level,
return;
}
data = validate_pbo_compressed_teximage(imageSize, data, &ctx->Unpack);
if (!data)
return;
/* copy the data */
ASSERT(texImage->CompressedSize == (GLuint) imageSize);
MEMCPY(texImage->Data, data, imageSize);
@ -1231,6 +1301,10 @@ _mesa_store_compressed_texsubimage2d(GLcontext *ctx, GLenum target,
ASSERT((xoffset & 3) == 0);
ASSERT((yoffset & 3) == 0);
data = validate_pbo_compressed_teximage(imageSize, data, &ctx->Unpack);
if (!data)
return;
srcRowStride = _mesa_compressed_row_stride(texImage->IntFormat, width);
src = (const GLubyte *) data;

13
src/mesa/swrast/s_bitmap.c
View file

@ -1,8 +1,8 @@
/*
* Mesa 3-D graphics library
* Version: 5.1
* Version: 6.1
*
* Copyright (C) 1999-2003 Brian Paul All Rights Reserved.
* Copyright (C) 1999-2004 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"),
@ -53,7 +53,14 @@ _swrast_Bitmap( GLcontext *ctx, GLint px, GLint py,
struct sw_span span;
ASSERT(ctx->RenderMode == GL_RENDER);
ASSERT(bitmap);
bitmap = _swrast_validate_pbo_access(unpack, width, height, 1,
GL_COLOR_INDEX, GL_BITMAP,
(GLvoid *) bitmap);
if (!bitmap) {
/* XXX GL_INVALID_OPERATION? */
return;
}
RENDER_START(swrast,ctx);

23
src/mesa/swrast/s_context.c
View file

@ -27,6 +27,7 @@
*/
#include "imports.h"
#include "bufferobj.h"
#include "context.h"
#include "colormac.h"
#include "mtypes.h"
@ -731,3 +732,25 @@ _swrast_print_vertex( GLcontext *ctx, const SWvertex *v )
_mesa_debug(ctx, "\n");
}
}
/**
* Validate access to a PBO to be sure we're not going to read/write
* out of buffer bounds.
*/
GLvoid *
_swrast_validate_pbo_access(const struct gl_pixelstore_attrib *pack,
GLsizei width, GLsizei height, GLsizei depth,
GLenum format, GLenum type, GLvoid *ptr)
{
if (pack->BufferObj->Name == 0) {
/* no PBO */
return ptr;
}
else if (_mesa_validate_pbo_access(pack, width, height, depth, format,
type, ptr)) {
return ADD_POINTERS(pack->BufferObj->Data, ptr);
}
/* bad access! */
return NULL;
}

21
src/mesa/swrast/s_drawpix.c
View file

@ -1,8 +1,8 @@
/*
* Mesa 3-D graphics library
* Version: 5.1
* Version: 6.1
*
* Copyright (C) 1999-2003 Brian Paul All Rights Reserved.
* Copyright (C) 1999-2004 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"),
@ -785,14 +785,14 @@ draw_rgba_pixels( GLcontext *ctx, GLint x, GLint y,
GLint row;
GLfloat *dest, *tmpImage;
tmpImage = (GLfloat *) MALLOC(width * height * 4 * sizeof(GLfloat));
tmpImage = (GLfloat *) _mesa_malloc(width * height * 4 * sizeof(GLfloat));
if (!tmpImage) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glDrawPixels");
return;
}
convImage = (GLfloat *) MALLOC(width * height * 4 * sizeof(GLfloat));
convImage = (GLfloat *) _mesa_malloc(width * height * 4 * sizeof(GLfloat));
if (!convImage) {
FREE(tmpImage);
_mesa_free(tmpImage);
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glDrawPixels");
return;
}
@ -816,10 +816,10 @@ draw_rgba_pixels( GLcontext *ctx, GLint x, GLint y,
ASSERT(ctx->Pixel.Separable2DEnabled);
_mesa_convolve_sep_image(ctx, &width, &height, tmpImage, convImage);
}
FREE(tmpImage);
_mesa_free(tmpImage);
/* continue transfer ops and draw the convolved image */
unpack = &_mesa_native_packing;
unpack = &ctx->DefaultPacking;
pixels = convImage;
format = GL_RGBA;
type = GL_FLOAT;
@ -887,7 +887,7 @@ draw_rgba_pixels( GLcontext *ctx, GLint x, GLint y,
}
if (convImage) {
FREE(convImage);
_mesa_free(convImage);
}
}
@ -910,6 +910,11 @@ _swrast_DrawPixels( GLcontext *ctx,
if (swrast->NewState)
_swrast_validate_derived( ctx );
pixels = _swrast_validate_pbo_access(unpack, width, height, 1,
format, type, (GLvoid *) pixels);
if (!pixels)
return;
RENDER_START(swrast,ctx);
switch (format) {

22
src/mesa/swrast/s_imaging.c
View file

@ -1,9 +1,8 @@
/*
* Mesa 3-D graphics library
* Version: 4.1
* Version: 6.1
*
* Copyright (C) 1999-2002 Brian Paul All Rights Reserved.
* Copyright (C) 1999-2004 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"),
@ -30,6 +29,9 @@
#include "s_context.h"
#include "s_span.h"
#include "colortab.h"
#include "convolve.h"
void
_swrast_CopyColorTable( GLcontext *ctx,
@ -50,9 +52,10 @@ _swrast_CopyColorTable( GLcontext *ctx,
/* Restore reading from draw buffer (the default) */
_swrast_use_draw_buffer(ctx);
glColorTable(target, internalformat, width, GL_RGBA, CHAN_TYPE, data);
_mesa_ColorTable(target, internalformat, width, GL_RGBA, CHAN_TYPE, data);
}
void
_swrast_CopyColorSubTable( GLcontext *ctx,GLenum target, GLsizei start,
GLint x, GLint y, GLsizei width)
@ -71,7 +74,7 @@ _swrast_CopyColorSubTable( GLcontext *ctx,GLenum target, GLsizei start,
/* Restore reading from draw buffer (the default) */
_swrast_use_draw_buffer(ctx);
glColorSubTable(target, start, width, GL_RGBA, CHAN_TYPE, data);
_mesa_ColorSubTable(target, start, width, GL_RGBA, CHAN_TYPE, data);
}
@ -98,8 +101,8 @@ _swrast_CopyConvolutionFilter1D(GLcontext *ctx, GLenum target,
_swrast_use_draw_buffer(ctx);
/* store as convolution filter */
glConvolutionFilter1D(target, internalFormat, width,
GL_RGBA, CHAN_TYPE, rgba);
_mesa_ConvolutionFilter1D(target, internalFormat, width,
GL_RGBA, CHAN_TYPE, rgba);
}
@ -145,10 +148,11 @@ _swrast_CopyConvolutionFilter2D(GLcontext *ctx, GLenum target,
ctx->Unpack.SkipImages = 0;
ctx->Unpack.SwapBytes = GL_FALSE;
ctx->Unpack.LsbFirst = GL_FALSE;
ctx->Unpack.BufferObj = ctx->Array.NullBufferObj;
ctx->NewState |= _NEW_PACKUNPACK;
glConvolutionFilter2D(target, internalFormat, width, height,
GL_RGBA, CHAN_TYPE, rgba);
_mesa_ConvolutionFilter2D(target, internalFormat, width, height,
GL_RGBA, CHAN_TYPE, rgba);
ctx->Unpack = packSave; /* restore pixel packing params */
ctx->NewState |= _NEW_PACKUNPACK;

22
src/mesa/swrast/s_readpix.c
View file

@ -1,8 +1,8 @@
/*
* Mesa 3-D graphics library
* Version: 5.1
* Version: 6.1
*
* Copyright (C) 1999-2003 Brian Paul All Rights Reserved.
* Copyright (C) 1999-2004 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"),
@ -382,14 +382,14 @@ read_rgba_pixels( GLcontext *ctx,
GLfloat *dest, *src, *tmpImage, *convImage;
GLint row;
tmpImage = (GLfloat *) MALLOC(width * height * 4 * sizeof(GLfloat));
tmpImage = (GLfloat *) _mesa_malloc(width * height * 4 * sizeof(GLfloat));
if (!tmpImage) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glReadPixels");
return;
}
convImage = (GLfloat *) MALLOC(width * height * 4 * sizeof(GLfloat));
convImage = (GLfloat *) _mesa_malloc(width * height * 4 * sizeof(GLfloat));
if (!convImage) {
FREE(tmpImage);
_mesa_free(tmpImage);
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glReadPixels");
return;
}
@ -410,7 +410,7 @@ read_rgba_pixels( GLcontext *ctx,
_mesa_map_ci_to_rgba_chan(ctx, readWidth, index, rgba);
}
_mesa_pack_rgba_span_chan(ctx, readWidth, (const GLchan (*)[4]) rgba,
GL_RGBA, GL_FLOAT, dest, &_mesa_native_packing,
GL_RGBA, GL_FLOAT, dest, &ctx->DefaultPacking,
transferOps & IMAGE_PRE_CONVOLUTION_BITS);
dest += width * 4;
}
@ -423,7 +423,7 @@ read_rgba_pixels( GLcontext *ctx,
ASSERT(ctx->Pixel.Separable2DEnabled);
_mesa_convolve_sep_image(ctx, &readWidth, &height, tmpImage, convImage);
}
FREE(tmpImage);
_mesa_free(tmpImage);
/* finish transfer ops and pack the resulting image */
src = convImage;
@ -501,6 +501,14 @@ _swrast_ReadPixels( GLcontext *ctx,
if (swrast->NewState)
_swrast_validate_derived( ctx );
pixels = _swrast_validate_pbo_access(pack, width, height, 1,
format, type, (GLvoid *) pixels);
if (!pixels) {
_mesa_error( ctx, GL_INVALID_VALUE, "glReadPixels(pixels)" );
return;
}
RENDER_START(swrast,ctx);
switch (format) {

49
src/mesa/swrast/s_texstore.c
View file

@ -1,9 +1,8 @@
/*
* Mesa 3-D graphics library
* Version: 5.1
* Version: 6.1
*
* Copyright (C) 1999-2003 Brian Paul All Rights Reserved.
* Copyright (C) 1999-2004 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"),
@ -68,7 +67,7 @@ read_color_image( GLcontext *ctx, GLint x, GLint y,
GLint stride, i;
GLchan *image, *dst;
image = (GLchan *) MALLOC(width * height * 4 * sizeof(GLchan));
image = (GLchan *) _mesa_malloc(width * height * 4 * sizeof(GLchan));
if (!image)
return NULL;
@ -105,7 +104,7 @@ read_depth_image( GLcontext *ctx, GLint x, GLint y,
GLfloat *image, *dst;
GLint i;
image = (GLfloat *) MALLOC(width * height * sizeof(GLfloat));
image = (GLfloat *) _mesa_malloc(width * height * sizeof(GLfloat));
if (!image)
return NULL;
@ -171,8 +170,8 @@ _swrast_copy_teximage1d( GLcontext *ctx, GLenum target, GLint level,
(*ctx->Driver.TexImage1D)(ctx, target, level, internalFormat,
width, border,
GL_DEPTH_COMPONENT, GL_FLOAT, image,
&_mesa_native_packing, texObj, texImage);
FREE(image);
&ctx->DefaultPacking, texObj, texImage);
_mesa_free(image);
}
else {
/* read RGBA image from framebuffer */
@ -186,8 +185,8 @@ _swrast_copy_teximage1d( GLcontext *ctx, GLenum target, GLint level,
(*ctx->Driver.TexImage1D)(ctx, target, level, internalFormat,
width, border,
GL_RGBA, CHAN_TYPE, image,
&_mesa_native_packing, texObj, texImage);
FREE(image);
&ctx->DefaultPacking, texObj, texImage);
_mesa_free(image);
}
/* GL_SGIS_generate_mipmap */
@ -230,8 +229,8 @@ _swrast_copy_teximage2d( GLcontext *ctx, GLenum target, GLint level,
(*ctx->Driver.TexImage2D)(ctx, target, level, internalFormat,
width, height, border,
GL_DEPTH_COMPONENT, GL_FLOAT, image,
&_mesa_native_packing, texObj, texImage);
FREE(image);
&ctx->DefaultPacking, texObj, texImage);
_mesa_free(image);
}
else {
/* read RGBA image from framebuffer */
@ -245,8 +244,8 @@ _swrast_copy_teximage2d( GLcontext *ctx, GLenum target, GLint level,
(*ctx->Driver.TexImage2D)(ctx, target, level, internalFormat,
width, height, border,
GL_RGBA, CHAN_TYPE, image,
&_mesa_native_packing, texObj, texImage);
FREE(image);
&ctx->DefaultPacking, texObj, texImage);
_mesa_free(image);
}
/* GL_SGIS_generate_mipmap */
@ -286,8 +285,8 @@ _swrast_copy_texsubimage1d( GLcontext *ctx, GLenum target, GLint level,
/* call glTexSubImage1D to redefine the texture */
(*ctx->Driver.TexSubImage1D)(ctx, target, level, xoffset, width,
GL_DEPTH_COMPONENT, GL_FLOAT, image,
&_mesa_native_packing, texObj, texImage);
FREE(image);
&ctx->DefaultPacking, texObj, texImage);
_mesa_free(image);
}
else {
/* read RGBA image from framebuffer */
@ -300,8 +299,8 @@ _swrast_copy_texsubimage1d( GLcontext *ctx, GLenum target, GLint level,
/* now call glTexSubImage1D to do the real work */
(*ctx->Driver.TexSubImage1D)(ctx, target, level, xoffset, width,
GL_RGBA, CHAN_TYPE, image,
&_mesa_native_packing, texObj, texImage);
FREE(image);
&ctx->DefaultPacking, texObj, texImage);
_mesa_free(image);
}
/* GL_SGIS_generate_mipmap */
@ -344,8 +343,8 @@ _swrast_copy_texsubimage2d( GLcontext *ctx,
(*ctx->Driver.TexSubImage2D)(ctx, target, level,
xoffset, yoffset, width, height,
GL_DEPTH_COMPONENT, GL_FLOAT, image,
&_mesa_native_packing, texObj, texImage);
FREE(image);
&ctx->DefaultPacking, texObj, texImage);
_mesa_free(image);
}
else {
/* read RGBA image from framebuffer */
@ -359,8 +358,8 @@ _swrast_copy_texsubimage2d( GLcontext *ctx,
(*ctx->Driver.TexSubImage2D)(ctx, target, level,
xoffset, yoffset, width, height,
GL_RGBA, CHAN_TYPE, image,
&_mesa_native_packing, texObj, texImage);
FREE(image);
&ctx->DefaultPacking, texObj, texImage);
_mesa_free(image);
}
/* GL_SGIS_generate_mipmap */
@ -403,8 +402,8 @@ _swrast_copy_texsubimage3d( GLcontext *ctx,
(*ctx->Driver.TexSubImage3D)(ctx, target, level,
xoffset, yoffset, zoffset, width, height, 1,
GL_DEPTH_COMPONENT, GL_FLOAT, image,
&_mesa_native_packing, texObj, texImage);
FREE(image);
&ctx->DefaultPacking, texObj, texImage);
_mesa_free(image);
}
else {
/* read RGBA image from framebuffer */
@ -418,8 +417,8 @@ _swrast_copy_texsubimage3d( GLcontext *ctx,
(*ctx->Driver.TexSubImage3D)(ctx, target, level,
xoffset, yoffset, zoffset, width, height, 1,
GL_RGBA, CHAN_TYPE, image,
&_mesa_native_packing, texObj, texImage);
FREE(image);
&ctx->DefaultPacking, texObj, texImage);
_mesa_free(image);
}
/* GL_SGIS_generate_mipmap */

6
src/mesa/swrast/swrast.h
View file

@ -197,6 +197,11 @@ extern void
_swrast_print_vertex( GLcontext *ctx, const SWvertex *v );
extern GLvoid *
_swrast_validate_pbo_access(const struct gl_pixelstore_attrib *pack,
GLsizei width, GLsizei height, GLsizei depth,
GLenum format, GLenum type, GLvoid *ptr);
/*
* Imaging fallbacks (a better solution should be found, perhaps
* moving all the imaging fallback code to a new module)
@ -252,7 +257,6 @@ _swrast_copy_texsubimage3d(GLcontext *ctx,
GLint x, GLint y, GLsizei width, GLsizei height);
/* The driver interface for the software rasterizer.
* Unless otherwise noted, all functions are mandatory.
*/