/*
* Mesa 3-D graphics library
- * Version: 7.7
*
* Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
* Copyright (c) 2009 VMware, Inc.
* 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
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
*/
#include "format_unpack.h"
#include "glformats.h"
#include "image.h"
-#include "mfeatures.h"
#include "mtypes.h"
#include "pack.h"
#include "pbo.h"
const GLint height = texImage->Height;
const GLint depth = texImage->Depth;
GLint img, row;
- GLfloat *depthRow = (GLfloat *) malloc(width * sizeof(GLfloat));
+ GLfloat *depthRow = malloc(width * sizeof(GLfloat));
if (!depthRow) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glGetTexImage");
const GLint depth = texImage->Depth;
GLint img, row;
+ assert(format == GL_DEPTH_STENCIL);
+ assert(type == GL_UNSIGNED_INT_24_8);
+ /* XXX type == GL_FLOAT_32_UNSIGNED_INT_24_8_REV is not handled yet */
+
for (img = 0; img < depth; img++) {
GLubyte *srcMap;
GLint rowstride;
void *dest = _mesa_image_address(dimensions, &ctx->Pack, pixels,
width, height, format, type,
img, row, 0);
- /* XXX Z24_S8 vs. S8_Z24??? */
- memcpy(dest, src, width * sizeof(GLuint));
+ /* Unpack from texture's format to GL's z24_s8 layout */
+ _mesa_unpack_uint_24_8_depth_stencil_row(texImage->TexFormat,
+ width,
+ (const GLuint *) src,
+ dest);
if (ctx->Pack.SwapBytes) {
_mesa_swap4((GLuint *) dest, width);
}
GLbitfield transferOps)
{
/* don't want to apply sRGB -> RGB conversion here so override the format */
- const gl_format texFormat =
+ const mesa_format texFormat =
_mesa_get_srgb_format_linear(texImage->TexFormat);
const GLenum baseFormat = _mesa_get_format_base_format(texFormat);
+ const GLenum destBaseFormat = _mesa_base_tex_format(ctx, format);
+ GLenum rebaseFormat = GL_NONE;
const GLuint width = texImage->Width;
const GLuint height = texImage->Height;
const GLuint depth = texImage->Depth;
- GLfloat *tempImage, *srcRow;
- GLuint row;
+ GLfloat *tempImage, *tempSlice, *srcRow;
+ GLuint row, slice;
/* Decompress into temp float buffer, then pack into user buffer */
- tempImage = (GLfloat *) malloc(width * height * depth
+ tempImage = malloc(width * height * depth
* 4 * sizeof(GLfloat));
if (!tempImage) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glGetTexImage()");
return;
}
- /* Decompress the texture image - results in 'tempImage' */
- {
+ /* Decompress the texture image slices - results in 'tempImage' */
+ for (slice = 0; slice < depth; slice++) {
GLubyte *srcMap;
GLint srcRowStride;
- ctx->Driver.MapTextureImage(ctx, texImage, 0,
+ tempSlice = tempImage + slice * 4 * width * height;
+
+ ctx->Driver.MapTextureImage(ctx, texImage, slice,
0, 0, width, height,
GL_MAP_READ_BIT,
&srcMap, &srcRowStride);
if (srcMap) {
_mesa_decompress_image(texFormat, width, height,
- srcMap, srcRowStride, tempImage);
+ srcMap, srcRowStride, tempSlice);
- ctx->Driver.UnmapTextureImage(ctx, texImage, 0);
+ ctx->Driver.UnmapTextureImage(ctx, texImage, slice);
}
else {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glGetTexImage");
}
if (baseFormat == GL_LUMINANCE ||
+ baseFormat == GL_INTENSITY ||
baseFormat == GL_LUMINANCE_ALPHA) {
- _mesa_rebase_rgba_float(width * height, (GLfloat (*)[4]) tempImage,
- baseFormat);
+ /* If a luminance (or intensity) texture is read back as RGB(A), the
+ * returned value should be (L,0,0,1), not (L,L,L,1). Set rebaseFormat
+ * here to get G=B=0.
+ */
+ rebaseFormat = texImage->_BaseFormat;
+ }
+ else if ((baseFormat == GL_RGBA ||
+ baseFormat == GL_RGB ||
+ baseFormat == GL_RG) &&
+ (destBaseFormat == GL_LUMINANCE ||
+ destBaseFormat == GL_LUMINANCE_ALPHA ||
+ destBaseFormat == GL_LUMINANCE_INTEGER_EXT ||
+ destBaseFormat == GL_LUMINANCE_ALPHA_INTEGER_EXT)) {
+ /* If we're reading back an RGB(A) texture as luminance then we need
+ * to return L=tex(R). Note, that's different from glReadPixels which
+ * returns L=R+G+B.
+ */
+ rebaseFormat = GL_LUMINANCE_ALPHA; /* this covers GL_LUMINANCE too */
}
- srcRow = tempImage;
- for (row = 0; row < height; row++) {
- void *dest = _mesa_image_address(dimensions, &ctx->Pack, pixels,
- width, height, format, type,
- 0, row, 0);
+ if (rebaseFormat) {
+ _mesa_rebase_rgba_float(width * height, (GLfloat (*)[4]) tempImage,
+ rebaseFormat);
+ }
- _mesa_pack_rgba_span_float(ctx, width, (GLfloat (*)[4]) srcRow,
- format, type, dest, &ctx->Pack, transferOps);
- srcRow += width * 4;
+ tempSlice = tempImage;
+ for (slice = 0; slice < depth; slice++) {
+ srcRow = tempSlice;
+ for (row = 0; row < height; row++) {
+ void *dest = _mesa_image_address(dimensions, &ctx->Pack, pixels,
+ width, height, format, type,
+ slice, row, 0);
+
+ _mesa_pack_rgba_span_float(ctx, width, (GLfloat (*)[4]) srcRow,
+ format, type, dest, &ctx->Pack, transferOps);
+ srcRow += 4 * width;
+ }
+ tempSlice += 4 * width * height;
}
free(tempImage);
}
+/**
+ * Return a base GL format given the user-requested format
+ * for glGetTexImage().
+ */
+GLenum
+_mesa_base_pack_format(GLenum format)
+{
+ switch (format) {
+ case GL_ABGR_EXT:
+ case GL_BGRA:
+ case GL_BGRA_INTEGER:
+ case GL_RGBA_INTEGER:
+ return GL_RGBA;
+ case GL_BGR:
+ case GL_BGR_INTEGER:
+ case GL_RGB_INTEGER:
+ return GL_RGB;
+ case GL_RED_INTEGER:
+ return GL_RED;
+ case GL_GREEN_INTEGER:
+ return GL_GREEN;
+ case GL_BLUE_INTEGER:
+ return GL_BLUE;
+ case GL_ALPHA_INTEGER:
+ return GL_ALPHA;
+ case GL_LUMINANCE_INTEGER_EXT:
+ return GL_LUMINANCE;
+ case GL_LUMINANCE_ALPHA_INTEGER_EXT:
+ return GL_LUMINANCE_ALPHA;
+ default:
+ return format;
+ }
+}
+
+
/**
* Get an uncompressed color texture image.
*/
GLbitfield transferOps)
{
/* don't want to apply sRGB -> RGB conversion here so override the format */
- const gl_format texFormat =
+ const mesa_format texFormat =
_mesa_get_srgb_format_linear(texImage->TexFormat);
const GLuint width = texImage->Width;
- const GLenum destBaseFormat = _mesa_base_tex_format(ctx, format);
+ GLenum destBaseFormat = _mesa_base_pack_format(format);
GLenum rebaseFormat = GL_NONE;
GLuint height = texImage->Height;
GLuint depth = texImage->Depth;
GLuint (*rgba_uint)[4];
GLboolean tex_is_integer = _mesa_is_format_integer_color(texImage->TexFormat);
GLboolean tex_is_uint = _mesa_is_format_unsigned(texImage->TexFormat);
+ GLenum texBaseFormat = _mesa_get_format_base_format(texImage->TexFormat);
/* Allocate buffer for one row of texels */
- rgba = (GLfloat (*)[4]) malloc(4 * width * sizeof(GLfloat));
+ rgba = malloc(4 * width * sizeof(GLfloat));
rgba_uint = (GLuint (*)[4]) rgba;
if (!rgba) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glGetTexImage()");
rebaseFormat = texImage->_BaseFormat;
}
else if ((texImage->_BaseFormat == GL_RGBA ||
- texImage->_BaseFormat == GL_RGB) &&
+ texImage->_BaseFormat == GL_RGB ||
+ texImage->_BaseFormat == GL_RG) &&
(destBaseFormat == GL_LUMINANCE ||
destBaseFormat == GL_LUMINANCE_ALPHA ||
destBaseFormat == GL_LUMINANCE_INTEGER_EXT ||
*/
rebaseFormat = GL_LUMINANCE_ALPHA; /* this covers GL_LUMINANCE too */
}
+ else if (texImage->_BaseFormat != texBaseFormat) {
+ /* The internal format and the real format differ, so we can't rely
+ * on the unpack functions setting the correct constant values.
+ * (e.g. reading back GL_RGB8 which is actually RGBA won't set alpha=1)
+ */
+ switch (texImage->_BaseFormat) {
+ case GL_RED:
+ if ((texBaseFormat == GL_RGBA ||
+ texBaseFormat == GL_RGB ||
+ texBaseFormat == GL_RG) &&
+ (destBaseFormat == GL_RGBA ||
+ destBaseFormat == GL_RGB ||
+ destBaseFormat == GL_RG ||
+ destBaseFormat == GL_GREEN)) {
+ rebaseFormat = texImage->_BaseFormat;
+ break;
+ }
+ /* fall through */
+ case GL_RG:
+ if ((texBaseFormat == GL_RGBA ||
+ texBaseFormat == GL_RGB) &&
+ (destBaseFormat == GL_RGBA ||
+ destBaseFormat == GL_RGB ||
+ destBaseFormat == GL_BLUE)) {
+ rebaseFormat = texImage->_BaseFormat;
+ break;
+ }
+ /* fall through */
+ case GL_RGB:
+ if (texBaseFormat == GL_RGBA &&
+ (destBaseFormat == GL_RGBA ||
+ destBaseFormat == GL_ALPHA ||
+ destBaseFormat == GL_LUMINANCE_ALPHA)) {
+ rebaseFormat = texImage->_BaseFormat;
+ }
+ break;
+
+ case GL_ALPHA:
+ if (destBaseFormat != GL_ALPHA) {
+ rebaseFormat = texImage->_BaseFormat;
+ }
+ break;
+ }
+ }
for (img = 0; img < depth; img++) {
GLubyte *srcMap;
if (type_needs_clamping(type)) {
/* the returned image type can't have negative values */
if (dataType == GL_FLOAT ||
+ dataType == GL_HALF_FLOAT ||
dataType == GL_SIGNED_NORMALIZED ||
format == GL_LUMINANCE ||
format == GL_LUMINANCE_ALPHA) {
transferOps |= IMAGE_CLAMP_BIT;
}
}
- /* This applies to RGB, RGBA textures. if the format is either LUMINANCE
- * or LUMINANCE ALPHA, luminance (L) is computed as L=R+G+B .we need to
- * clamp the sum to [0,1].
- */
- else if ((format == GL_LUMINANCE ||
- format == GL_LUMINANCE_ALPHA) &&
- dataType == GL_UNSIGNED_NORMALIZED) {
- transferOps |= IMAGE_CLAMP_BIT;
- }
if (_mesa_is_format_compressed(texImage->TexFormat)) {
get_tex_rgba_compressed(ctx, dimensions, format, type,
{
const GLenum target = texImage->TexObject->Target;
GLboolean memCopy = GL_FALSE;
+ GLenum texBaseFormat = _mesa_get_format_base_format(texImage->TexFormat);
/*
* Check if we can use memcpy to copy from the hardware texture
* format to the user's format/type.
* Note that GL's pixel transfer ops don't apply to glGetTexImage()
*/
- if (target == GL_TEXTURE_1D ||
- target == GL_TEXTURE_2D ||
- target == GL_TEXTURE_RECTANGLE ||
- _mesa_is_cube_face(target)) {
+ if ((target == GL_TEXTURE_1D ||
+ target == GL_TEXTURE_2D ||
+ target == GL_TEXTURE_RECTANGLE ||
+ _mesa_is_cube_face(target)) &&
+ texBaseFormat == texImage->_BaseFormat) {
memCopy = _mesa_format_matches_format_and_type(texImage->TexFormat,
format, type,
ctx->Pack.SwapBytes);
GLenum format, GLenum type, GLvoid *pixels,
struct gl_texture_image *texImage)
{
- GLuint dimensions;
-
- switch (texImage->TexObject->Target) {
- case GL_TEXTURE_1D:
- dimensions = 1;
- break;
- case GL_TEXTURE_3D:
- dimensions = 3;
- break;
- default:
- dimensions = 2;
- }
+ const GLuint dimensions =
+ _mesa_get_texture_dimensions(texImage->TexObject->Target);
/* map dest buffer, if PBO */
if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
*/
GLubyte *buf = (GLubyte *)
ctx->Driver.MapBufferRange(ctx, 0, ctx->Pack.BufferObj->Size,
- GL_MAP_WRITE_BIT, ctx->Pack.BufferObj);
+ GL_MAP_WRITE_BIT, ctx->Pack.BufferObj,
+ MAP_INTERNAL);
if (!buf) {
/* out of memory or other unexpected error */
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glGetTexImage(map PBO failed)");
}
if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
- ctx->Driver.UnmapBuffer(ctx, ctx->Pack.BufferObj);
+ ctx->Driver.UnmapBuffer(ctx, ctx->Pack.BufferObj, MAP_INTERNAL);
}
}
/* pack texture image into a PBO */
GLubyte *buf = (GLubyte *)
ctx->Driver.MapBufferRange(ctx, 0, ctx->Pack.BufferObj->Size,
- GL_MAP_WRITE_BIT, ctx->Pack.BufferObj);
+ GL_MAP_WRITE_BIT, ctx->Pack.BufferObj,
+ MAP_INTERNAL);
if (!buf) {
/* out of memory or other unexpected error */
_mesa_error(ctx, GL_OUT_OF_MEMORY,
}
if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
- ctx->Driver.UnmapBuffer(ctx, ctx->Pack.BufferObj);
+ ctx->Driver.UnmapBuffer(ctx, ctx->Pack.BufferObj, MAP_INTERNAL);
}
}
+/**
+ * Validate the texture target enum supplied to glTexImage or
+ * glCompressedTexImage.
+ */
+static GLboolean
+legal_getteximage_target(struct gl_context *ctx, GLenum target)
+{
+ switch (target) {
+ case GL_TEXTURE_1D:
+ case GL_TEXTURE_2D:
+ case GL_TEXTURE_3D:
+ return GL_TRUE;
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
+ return ctx->Extensions.ARB_texture_cube_map;
+ case GL_TEXTURE_RECTANGLE_NV:
+ return ctx->Extensions.NV_texture_rectangle;
+ case GL_TEXTURE_1D_ARRAY_EXT:
+ case GL_TEXTURE_2D_ARRAY_EXT:
+ return ctx->Extensions.EXT_texture_array;
+ case GL_TEXTURE_CUBE_MAP_ARRAY:
+ return ctx->Extensions.ARB_texture_cube_map_array;
+ default:
+ return GL_FALSE;
+ }
+}
+
/**
* Do error checking for a glGetTexImage() call.
const GLuint dimensions = (target == GL_TEXTURE_3D) ? 3 : 2;
GLenum baseFormat, err;
- if (maxLevels == 0) {
+ if (!legal_getteximage_target(ctx, target)) {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(target=0x%x)", target);
return GL_TRUE;
}
+ assert(maxLevels != 0);
if (level < 0 || level >= maxLevels) {
_mesa_error( ctx, GL_INVALID_VALUE, "glGetTexImage(level)" );
return GL_TRUE;
texObj = _mesa_get_current_tex_object(ctx, target);
- if (!texObj || _mesa_is_proxy_texture(target)) {
+ if (!texObj) {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(target)");
return GL_TRUE;
}
if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
/* PBO should not be mapped */
- if (_mesa_bufferobj_mapped(ctx->Pack.BufferObj)) {
+ if (_mesa_check_disallowed_mapping(ctx->Pack.BufferObj)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glGetTexImage(PBO is mapped)");
return GL_TRUE;
struct gl_texture_object *texObj;
struct gl_texture_image *texImage;
GET_CURRENT_CONTEXT(ctx);
- ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ FLUSH_VERTICES(ctx, 0);
if (getteximage_error_check(ctx, target, level, format, type,
bufSize, pixels)) {
const GLint maxLevels = _mesa_max_texture_levels(ctx, target);
GLuint compressedSize;
- if (maxLevels == 0) {
+ if (!legal_getteximage_target(ctx, target)) {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetCompressedTexImage(target=0x%x)",
target);
return GL_TRUE;
}
+ assert(maxLevels != 0);
if (level < 0 || level >= maxLevels) {
_mesa_error(ctx, GL_INVALID_VALUE,
"glGetCompressedTexImageARB(bad level = %d)", level);
return GL_TRUE;
}
- if (_mesa_is_proxy_texture(target)) {
- _mesa_error(ctx, GL_INVALID_ENUM,
- "glGetCompressedTexImageARB(bad target = %s)",
- _mesa_lookup_enum_by_nr(target));
- return GL_TRUE;
- }
-
texObj = _mesa_get_current_tex_object(ctx, target);
if (!texObj) {
_mesa_error(ctx, GL_INVALID_ENUM, "glGetCompressedTexImageARB(target)");
if (!_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
/* do bounds checking on writing to client memory */
- if (clientMemSize < compressedSize) {
+ if (clientMemSize < (GLsizei) compressedSize) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glGetnCompressedTexImageARB(out of bounds access:"
" bufSize (%d) is too small)", clientMemSize);
}
/* make sure PBO is not mapped */
- if (_mesa_bufferobj_mapped(ctx->Pack.BufferObj)) {
+ if (_mesa_check_disallowed_mapping(ctx->Pack.BufferObj)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glGetCompressedTexImage(PBO is mapped)");
return GL_TRUE;
struct gl_texture_object *texObj;
struct gl_texture_image *texImage;
GET_CURRENT_CONTEXT(ctx);
- ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+ FLUSH_VERTICES(ctx, 0);
if (getcompressedteximage_error_check(ctx, target, level, bufSize, img)) {
return;
}
void GLAPIENTRY
-_mesa_GetCompressedTexImageARB(GLenum target, GLint level, GLvoid *img)
+_mesa_GetCompressedTexImage(GLenum target, GLint level, GLvoid *img)
{
_mesa_GetnCompressedTexImageARB(target, level, INT_MAX, img);
}
projects / mesa.git / blobdiff