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path: root/mesalib/src/mesa/main/texgetimage.c
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Diffstat (limited to 'mesalib/src/mesa/main/texgetimage.c')
-rw-r--r--mesalib/src/mesa/main/texgetimage.c84
1 files changed, 56 insertions, 28 deletions
diff --git a/mesalib/src/mesa/main/texgetimage.c b/mesalib/src/mesa/main/texgetimage.c
index 0436f09e1..786e15603 100644
--- a/mesalib/src/mesa/main/texgetimage.c
+++ b/mesalib/src/mesa/main/texgetimage.c
@@ -623,11 +623,13 @@ _mesa_get_compressed_teximage(struct gl_context *ctx, GLenum target, GLint level
*/
static GLboolean
getteximage_error_check(struct gl_context *ctx, GLenum target, GLint level,
- GLenum format, GLenum type, GLvoid *pixels )
+ GLenum format, GLenum type, GLsizei clientMemSize,
+ GLvoid *pixels )
{
struct gl_texture_object *texObj;
struct gl_texture_image *texImage;
const GLint maxLevels = _mesa_max_texture_levels(ctx, target);
+ const GLuint dimensions = (target == GL_TEXTURE_3D) ? 3 : 2;
GLenum baseFormat;
if (maxLevels == 0) {
@@ -730,17 +732,21 @@ getteximage_error_check(struct gl_context *ctx, GLenum target, GLint level,
return GL_TRUE;
}
- if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
- /* packing texture image into a PBO */
- const GLuint dimensions = (target == GL_TEXTURE_3D) ? 3 : 2;
- if (!_mesa_validate_pbo_access(dimensions, &ctx->Pack, texImage->Width,
- texImage->Height, texImage->Depth,
- format, type, pixels)) {
+ if (!_mesa_validate_pbo_access(dimensions, &ctx->Pack, texImage->Width,
+ texImage->Height, texImage->Depth,
+ format, type, clientMemSize, pixels)) {
+ if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
- "glGetTexImage(out of bounds PBO write)");
- return GL_TRUE;
+ "glGetTexImage(out of bounds PBO access)");
+ } else {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glGetnTexImageARB(out of bounds access:"
+ " bufSize (%d) is too small)", clientMemSize);
}
+ return GL_TRUE;
+ }
+ if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
/* PBO should not be mapped */
if (_mesa_bufferobj_mapped(ctx->Pack.BufferObj)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
@@ -761,18 +767,20 @@ getteximage_error_check(struct gl_context *ctx, GLenum target, GLint level,
* \param level image level.
* \param format pixel data format for returned image.
* \param type pixel data type for returned image.
+ * \param bufSize size of the pixels data buffer.
* \param pixels returned pixel data.
*/
void GLAPIENTRY
-_mesa_GetTexImage( GLenum target, GLint level, GLenum format,
- GLenum type, GLvoid *pixels )
+_mesa_GetnTexImageARB( GLenum target, GLint level, GLenum format,
+ GLenum type, GLsizei bufSize, GLvoid *pixels )
{
struct gl_texture_object *texObj;
struct gl_texture_image *texImage;
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
- if (getteximage_error_check(ctx, target, level, format, type, pixels)) {
+ if (getteximage_error_check(ctx, target, level, format, type,
+ bufSize, pixels)) {
return;
}
@@ -802,6 +810,13 @@ _mesa_GetTexImage( GLenum target, GLint level, GLenum format,
}
+void GLAPIENTRY
+_mesa_GetTexImage( GLenum target, GLint level, GLenum format,
+ GLenum type, GLvoid *pixels )
+{
+ _mesa_GetnTexImageARB(target, level, format, type, INT_MAX, pixels);
+}
+
/**
* Do error checking for a glGetCompressedTexImage() call.
@@ -809,11 +824,12 @@ _mesa_GetTexImage( GLenum target, GLint level, GLenum format,
*/
static GLboolean
getcompressedteximage_error_check(struct gl_context *ctx, GLenum target,
- GLint level, GLvoid *img)
+ GLint level, GLsizei clientMemSize, GLvoid *img)
{
struct gl_texture_object *texObj;
struct gl_texture_image *texImage;
const GLint maxLevels = _mesa_max_texture_levels(ctx, target);
+ GLuint compressedSize;
if (maxLevels == 0) {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetCompressedTexImage(target=0x%x)",
@@ -855,26 +871,31 @@ getcompressedteximage_error_check(struct gl_context *ctx, GLenum target,
return GL_TRUE;
}
- if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
- GLuint compressedSize;
+ compressedSize = _mesa_format_image_size(texImage->TexFormat,
+ texImage->Width,
+ texImage->Height,
+ texImage->Depth);
- /* make sure PBO is not mapped */
- if (_mesa_bufferobj_mapped(ctx->Pack.BufferObj)) {
+ if (!_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
+ /* do bounds checking on writing to client memory */
+ if (clientMemSize < compressedSize) {
_mesa_error(ctx, GL_INVALID_OPERATION,
- "glGetCompressedTexImage(PBO is mapped)");
- return GL_TRUE;
+ "glGetnCompressedTexImageARB(out of bounds access:"
+ " bufSize (%d) is too small)", clientMemSize);
}
-
- compressedSize = _mesa_format_image_size(texImage->TexFormat,
- texImage->Width,
- texImage->Height,
- texImage->Depth);
-
+ } else {
/* do bounds checking on PBO write */
if ((const GLubyte *) img + compressedSize >
(const GLubyte *) ctx->Pack.BufferObj->Size) {
_mesa_error(ctx, GL_INVALID_OPERATION,
- "glGetCompressedTexImage(out of bounds PBO write)");
+ "glGetCompressedTexImage(out of bounds PBO access)");
+ return GL_TRUE;
+ }
+
+ /* make sure PBO is not mapped */
+ if (_mesa_bufferobj_mapped(ctx->Pack.BufferObj)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glGetCompressedTexImage(PBO is mapped)");
return GL_TRUE;
}
}
@@ -884,14 +905,15 @@ getcompressedteximage_error_check(struct gl_context *ctx, GLenum target,
void GLAPIENTRY
-_mesa_GetCompressedTexImageARB(GLenum target, GLint level, GLvoid *img)
+_mesa_GetnCompressedTexImageARB(GLenum target, GLint level, GLsizei bufSize,
+ GLvoid *img)
{
struct gl_texture_object *texObj;
struct gl_texture_image *texImage;
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
- if (getcompressedteximage_error_check(ctx, target, level, img)) {
+ if (getcompressedteximage_error_check(ctx, target, level, bufSize, img)) {
return;
}
@@ -918,3 +940,9 @@ _mesa_GetCompressedTexImageARB(GLenum target, GLint level, GLvoid *img)
}
_mesa_unlock_texture(ctx, texObj);
}
+
+void GLAPIENTRY
+_mesa_GetCompressedTexImageARB(GLenum target, GLint level, GLvoid *img)
+{
+ _mesa_GetnCompressedTexImageARB(target, level, INT_MAX, img);
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-02 18:29:05 +0000