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-rw-r--r--src/mesa/main/bufferobj.c76
-rw-r--r--src/mesa/main/bufferobj.h24
-rw-r--r--src/mesa/main/drawpix.c50
3 files changed, 74 insertions, 76 deletions
diff --git a/src/mesa/main/bufferobj.c b/src/mesa/main/bufferobj.c
index 3023d8fec36..eb418610a72 100644
--- a/src/mesa/main/bufferobj.c
+++ b/src/mesa/main/bufferobj.c
@@ -570,31 +570,17 @@ _mesa_validate_pbo_access(GLuint dimensions,
* If not sourcing from a PBO, just return the bitmap pointer.
* This is a helper function for (some) drivers.
* Return NULL if error.
- * If non-null return, must call validate_and_map_bitmap_pbo() when done.
+ * If non-null return, must call _mesa_unmap_bitmap_pbo() when done.
*/
const GLubyte *
-_mesa_validate_and_map_bitmap_pbo(GLcontext *ctx,
- GLsizei width, GLsizei height,
- const struct gl_pixelstore_attrib *unpack,
- const GLubyte *bitmap)
+_mesa_map_bitmap_pbo(GLcontext *ctx,
+ const struct gl_pixelstore_attrib *unpack,
+ const GLubyte *bitmap)
{
const GLubyte *buf;
if (unpack->BufferObj->Name) {
/* unpack from PBO */
- if (!_mesa_validate_pbo_access(2, unpack, width, height, 1,
- GL_COLOR_INDEX, GL_BITMAP,
- (GLvoid *) bitmap)) {
- _mesa_error(ctx, GL_INVALID_OPERATION,"glBitmap(invalid PBO access)");
- return NULL;
- }
-
- if (unpack->BufferObj->Pointer) {
- /* buffer is already mapped - that's an error */
- _mesa_error(ctx, GL_INVALID_OPERATION, "glBitmap(PBO is mapped)");
- return NULL;
- }
-
buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT,
GL_READ_ONLY_ARB,
unpack->BufferObj);
@@ -613,7 +599,7 @@ _mesa_validate_and_map_bitmap_pbo(GLcontext *ctx,
/**
- * Counterpart to validate_and_map_bitmap_pbo()
+ * Counterpart to _mesa_map_bitmap_pbo()
* This is a helper function for (some) drivers.
*/
void
@@ -628,33 +614,17 @@ _mesa_unmap_bitmap_pbo(GLcontext *ctx,
/**
- * \sa _mesa_validate_and_map_bitmap_pbo
+ * \sa _mesa_map_bitmap_pbo
*/
const GLvoid *
-_mesa_validate_and_map_drawpix_pbo(GLcontext *ctx,
- GLsizei width, GLsizei height,
- GLenum format, GLenum type,
- const struct gl_pixelstore_attrib *unpack,
- const GLvoid *pixels)
+_mesa_map_drawpix_pbo(GLcontext *ctx,
+ const struct gl_pixelstore_attrib *unpack,
+ const GLvoid *pixels)
{
const GLvoid *buf;
if (unpack->BufferObj->Name) {
/* unpack from PBO */
-
- if (!_mesa_validate_pbo_access(2, unpack, width, height, 1,
- format, type, pixels)) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glDrawPixels(invalid PBO access)");
- return NULL;
- }
-
- if (unpack->BufferObj->Pointer) {
- /* buffer is already mapped - that's an error */
- _mesa_error(ctx, GL_INVALID_OPERATION, "glDrawPixels(PBO is mapped)");
- return NULL;
- }
-
buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT,
GL_READ_ONLY_ARB,
unpack->BufferObj);
@@ -687,36 +657,19 @@ _mesa_unmap_drapix_pbo(GLcontext *ctx,
/**
- * When doing glReadPixels into a PBO, this function will check for errors
- * and map the buffer.
+ * If PBO is bound, map the buffer, return dest pointer in mapped buffer.
* Call _mesa_unmap_readpix_pbo() when finished
* \return NULL if error
*/
void *
-_mesa_validate_and_map_readpix_pbo(GLcontext *ctx,
- GLint x, GLint y,
- GLsizei width, GLsizei height,
- GLenum format, GLenum type,
- const struct gl_pixelstore_attrib *pack,
- GLvoid *dest)
+_mesa_map_readpix_pbo(GLcontext *ctx,
+ const struct gl_pixelstore_attrib *pack,
+ GLvoid *dest)
{
void *buf;
if (pack->BufferObj->Name) {
/* pack into PBO */
- if (!_mesa_validate_pbo_access(2, pack, width, height, 1,
- format, type, dest)) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glReadPixels(invalid PBO access)");
- return NULL;
- }
-
- if (pack->BufferObj->Pointer) {
- /* buffer is already mapped - that's an error */
- _mesa_error(ctx, GL_INVALID_OPERATION, "glReadPixels(PBO is mapped)");
- return NULL;
- }
-
buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT,
GL_WRITE_ONLY_ARB,
pack->BufferObj);
@@ -735,7 +688,7 @@ _mesa_validate_and_map_readpix_pbo(GLcontext *ctx,
/**
- * Counterpart to validate_and_map_readpix_pbo()
+ * Counterpart to _mesa_map_readpix_pbo()
*/
void
_mesa_unmap_readpix_pbo(GLcontext *ctx,
@@ -747,6 +700,7 @@ _mesa_unmap_readpix_pbo(GLcontext *ctx,
}
+
/**
* Return the gl_buffer_object for the given ID.
* Always return NULL for ID 0.
diff --git a/src/mesa/main/bufferobj.h b/src/mesa/main/bufferobj.h
index 1b63e684330..8baa59d6171 100644
--- a/src/mesa/main/bufferobj.h
+++ b/src/mesa/main/bufferobj.h
@@ -90,21 +90,18 @@ _mesa_validate_pbo_access(GLuint dimensions,
GLenum format, GLenum type, const GLvoid *ptr);
extern const GLubyte *
-_mesa_validate_and_map_bitmap_pbo(GLcontext *ctx,
- GLsizei width, GLsizei height,
- const struct gl_pixelstore_attrib *unpack,
- const GLubyte *bitmap);
+_mesa_map_bitmap_pbo(GLcontext *ctx,
+ const struct gl_pixelstore_attrib *unpack,
+ const GLubyte *bitmap);
extern void
_mesa_unmap_bitmap_pbo(GLcontext *ctx,
const struct gl_pixelstore_attrib *unpack);
extern const GLvoid *
-_mesa_validate_and_map_drawpix_pbo(GLcontext *ctx,
- GLsizei width, GLsizei height,
- GLenum format, GLenum type,
- const struct gl_pixelstore_attrib *unpack,
- const GLvoid *pixels);
+_mesa_map_drawpix_pbo(GLcontext *ctx,
+ const struct gl_pixelstore_attrib *unpack,
+ const GLvoid *pixels);
extern void
_mesa_unmap_drapix_pbo(GLcontext *ctx,
@@ -112,12 +109,9 @@ _mesa_unmap_drapix_pbo(GLcontext *ctx,
extern void *
-_mesa_validate_and_map_readpix_pbo(GLcontext *ctx,
- GLint x, GLint y,
- GLsizei width, GLsizei height,
- GLenum format, GLenum type,
- const struct gl_pixelstore_attrib *pack,
- GLvoid *dest);
+_mesa_map_readpix_pbo(GLcontext *ctx,
+ const struct gl_pixelstore_attrib *pack,
+ GLvoid *dest);
extern void
_mesa_unmap_readpix_pbo(GLcontext *ctx,
diff --git a/src/mesa/main/drawpix.c b/src/mesa/main/drawpix.c
index d9b724bc06d..4f287666746 100644
--- a/src/mesa/main/drawpix.c
+++ b/src/mesa/main/drawpix.c
@@ -24,6 +24,7 @@
#include "glheader.h"
#include "imports.h"
+#include "bufferobj.h"
#include "context.h"
#include "drawpix.h"
#include "feedback.h"
@@ -182,6 +183,23 @@ _mesa_DrawPixels( GLsizei width, GLsizei height,
/* 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;
+ }
+ }
+
ctx->Driver.DrawPixels(ctx, x, y, width, height, format, type,
&ctx->Unpack, pixels);
}
@@ -300,6 +318,21 @@ _mesa_ReadPixels( GLint x, GLint y, GLsizei width, GLsizei height,
return;
}
+ 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);
}
@@ -343,6 +376,23 @@ _mesa_Bitmap( GLsizei width, GLsizei height,
/* 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->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
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-04 22:17:55 +0000