/*
* 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 "context.h"
#include "formats.h"
#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");
/**
- * glGetTexImage for color formats (RGBA, RGB, alpha, LA, etc).
- * Compressed textures are handled here as well.
+ * Get a color texture image with decompression.
*/
static void
-get_tex_rgba(struct gl_context *ctx, GLuint dimensions,
- GLenum format, GLenum type, GLvoid *pixels,
- struct gl_texture_image *texImage)
+get_tex_rgba_compressed(struct gl_context *ctx, GLuint dimensions,
+ GLenum format, GLenum type, GLvoid *pixels,
+ struct gl_texture_image *texImage,
+ GLbitfield transferOps)
{
/* don't want to apply sRGB -> RGB conversion here so override the format */
- const gl_format texFormat = _mesa_get_srgb_format_linear(texImage->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;
- const GLenum dataType = _mesa_get_format_datatype(texFormat);
- const GLenum baseFormat = _mesa_get_format_base_format(texFormat);
- /* Normally, no pixel transfer ops are performed during glGetTexImage.
- * The only possible exception is component clamping to [0,1].
- */
- GLbitfield transferOps = 0x0;
+ GLfloat *tempImage, *tempSlice, *srcRow;
+ GLuint row, slice;
+
+ /* Decompress into temp float buffer, then pack into user buffer */
+ tempImage = malloc(width * height * depth
+ * 4 * sizeof(GLfloat));
+ if (!tempImage) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glGetTexImage()");
+ return;
+ }
- /* In general, clamping does not apply to glGetTexImage, except when
- * the returned type of the image can't hold negative values.
- */
- if (type_needs_clamping(type)) {
- /* the returned image type can't have negative values */
- if (dataType == GL_FLOAT ||
- dataType == GL_SIGNED_NORMALIZED ||
- format == GL_LUMINANCE ||
- format == GL_LUMINANCE_ALPHA) {
- transferOps |= IMAGE_CLAMP_BIT;
+ /* Decompress the texture image slices - results in 'tempImage' */
+ for (slice = 0; slice < depth; slice++) {
+ GLubyte *srcMap;
+ GLint srcRowStride;
+
+ 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, tempSlice);
+
+ ctx->Driver.UnmapTextureImage(ctx, texImage, slice);
+ }
+ else {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glGetTexImage");
+ free(tempImage);
+ return;
}
}
- if (_mesa_is_format_compressed(texFormat)) {
- /* Decompress into temp buffer, then pack into user buffer */
- GLfloat *tempImage, *srcRow;
- GLuint row;
+ if (baseFormat == GL_LUMINANCE ||
+ baseFormat == GL_INTENSITY ||
+ baseFormat == GL_LUMINANCE_ALPHA) {
+ /* 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 */
+ }
+
+ if (rebaseFormat) {
+ _mesa_rebase_rgba_float(width * height, (GLfloat (*)[4]) tempImage,
+ rebaseFormat);
+ }
- tempImage = (GLfloat *) malloc(texImage->Width * texImage->Height *
- texImage->Depth * 4 * sizeof(GLfloat));
- if (!tempImage) {
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "glGetTexImage()");
- return;
+ 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;
+ }
- /* Decompress the texture image - results in 'tempImage' */
- {
- GLubyte *srcMap;
- GLint srcRowStride;
- GLuint bytes, bw, bh;
+ free(tempImage);
+}
- bytes = _mesa_get_format_bytes(texImage->TexFormat);
- _mesa_get_format_block_size(texImage->TexFormat, &bw, &bh);
- ctx->Driver.MapTextureImage(ctx, texImage, 0,
- 0, 0, width, height,
- GL_MAP_READ_BIT,
- &srcMap, &srcRowStride);
+/**
+ * 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;
+ }
+}
- if (srcMap) {
- /* XXX This line is a bit of a hack to work around the
- * mismatch of compressed row strides as returned by
- * MapTextureImage() vs. what the texture decompression code
- * uses. This will be fixed in the future.
- */
- srcRowStride = srcRowStride * bh / bytes;
- _mesa_decompress_image(texFormat, width, height,
- srcMap, srcRowStride, tempImage);
+/**
+ * Get an uncompressed color texture image.
+ */
+static void
+get_tex_rgba_uncompressed(struct gl_context *ctx, GLuint dimensions,
+ GLenum format, GLenum type, GLvoid *pixels,
+ struct gl_texture_image *texImage,
+ GLbitfield transferOps)
+{
+ /* don't want to apply sRGB -> RGB conversion here so override the format */
+ const mesa_format texFormat =
+ _mesa_get_srgb_format_linear(texImage->TexFormat);
+ const GLuint width = texImage->Width;
+ GLenum destBaseFormat = _mesa_base_pack_format(format);
+ GLenum rebaseFormat = GL_NONE;
+ GLuint height = texImage->Height;
+ GLuint depth = texImage->Depth;
+ GLuint img, row;
+ GLfloat (*rgba)[4];
+ 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 = malloc(4 * width * sizeof(GLfloat));
+ rgba_uint = (GLuint (*)[4]) rgba;
+ if (!rgba) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glGetTexImage()");
+ return;
+ }
+
+ if (texImage->TexObject->Target == GL_TEXTURE_1D_ARRAY) {
+ depth = height;
+ height = 1;
+ }
- ctx->Driver.UnmapTextureImage(ctx, texImage, 0);
+ if (texImage->_BaseFormat == GL_LUMINANCE ||
+ texImage->_BaseFormat == GL_INTENSITY ||
+ texImage->_BaseFormat == GL_LUMINANCE_ALPHA) {
+ /* 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 ((texImage->_BaseFormat == GL_RGBA ||
+ texImage->_BaseFormat == GL_RGB ||
+ texImage->_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 */
+ }
+ 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;
}
- else {
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "glGetTexImage");
+ /* 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;
- if (baseFormat == GL_LUMINANCE ||
- baseFormat == GL_LUMINANCE_ALPHA) {
- /* Set green and blue to zero since the pack function here will
- * compute L=R+G+B.
- */
- GLuint i;
- for (i = 0; i < width * height; i++) {
- tempImage[i * 4 + GCOMP] = tempImage[i * 4 + BCOMP] = 0.0f;
+ case GL_ALPHA:
+ if (destBaseFormat != GL_ALPHA) {
+ rebaseFormat = texImage->_BaseFormat;
}
+ break;
}
+ }
- srcRow = tempImage;
- for (row = 0; row < height; row++) {
- void *dest = _mesa_image_address(dimensions, &ctx->Pack, pixels,
- width, height, format, type,
- 0, row, 0);
+ for (img = 0; img < depth; img++) {
+ GLubyte *srcMap;
+ GLint rowstride;
- _mesa_pack_rgba_span_float(ctx, width, (GLfloat (*)[4]) srcRow,
- format, type, dest, &ctx->Pack, transferOps);
- srcRow += width * 4;
- }
+ /* map src texture buffer */
+ ctx->Driver.MapTextureImage(ctx, texImage, img,
+ 0, 0, width, height, GL_MAP_READ_BIT,
+ &srcMap, &rowstride);
+ if (srcMap) {
+ for (row = 0; row < height; row++) {
+ const GLubyte *src = srcMap + row * rowstride;
+ void *dest = _mesa_image_address(dimensions, &ctx->Pack, pixels,
+ width, height, format, type,
+ img, row, 0);
- free(tempImage);
+ if (tex_is_integer) {
+ _mesa_unpack_uint_rgba_row(texFormat, width, src, rgba_uint);
+ if (rebaseFormat)
+ _mesa_rebase_rgba_uint(width, rgba_uint, rebaseFormat);
+ if (tex_is_uint) {
+ _mesa_pack_rgba_span_from_uints(ctx, width,
+ (GLuint (*)[4]) rgba_uint,
+ format, type, dest);
+ } else {
+ _mesa_pack_rgba_span_from_ints(ctx, width,
+ (GLint (*)[4]) rgba_uint,
+ format, type, dest);
+ }
+ } else {
+ _mesa_unpack_rgba_row(texFormat, width, src, rgba);
+ if (rebaseFormat)
+ _mesa_rebase_rgba_float(width, rgba, rebaseFormat);
+ _mesa_pack_rgba_span_float(ctx, width, (GLfloat (*)[4]) rgba,
+ format, type, dest,
+ &ctx->Pack, transferOps);
+ }
+ }
+
+ /* Unmap the src texture buffer */
+ ctx->Driver.UnmapTextureImage(ctx, texImage, img);
+ }
+ else {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glGetTexImage");
+ break;
+ }
}
- else {
- /* No decompression needed */
- GLuint img, row;
- GLfloat (*rgba)[4];
- rgba = (GLfloat (*)[4]) malloc(4 * width * sizeof(GLfloat));
- if (!rgba) {
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "glGetTexImage()");
- return;
- }
+ free(rgba);
+}
- for (img = 0; img < depth; img++) {
- GLubyte *srcMap;
- GLint rowstride;
-
- /* map src texture buffer */
- ctx->Driver.MapTextureImage(ctx, texImage, img,
- 0, 0, width, height, GL_MAP_READ_BIT,
- &srcMap, &rowstride);
-
- if (srcMap) {
- for (row = 0; row < height; row++) {
- const GLubyte *src = srcMap + row * rowstride;
- void *dest = _mesa_image_address(dimensions, &ctx->Pack, pixels,
- width, height, format, type,
- img, row, 0);
-
- _mesa_unpack_rgba_row(texFormat, width, src, rgba);
-
- if (texImage->_BaseFormat == GL_ALPHA) {
- GLint col;
- for (col = 0; col < width; col++) {
- rgba[col][RCOMP] = 0.0F;
- rgba[col][GCOMP] = 0.0F;
- rgba[col][BCOMP] = 0.0F;
- }
- }
- else if (texImage->_BaseFormat == GL_LUMINANCE) {
- GLint col;
- for (col = 0; col < width; col++) {
- rgba[col][GCOMP] = 0.0F;
- rgba[col][BCOMP] = 0.0F;
- rgba[col][ACOMP] = 1.0F;
- }
- }
- else if (texImage->_BaseFormat == GL_LUMINANCE_ALPHA) {
- GLint col;
- for (col = 0; col < width; col++) {
- rgba[col][GCOMP] = 0.0F;
- rgba[col][BCOMP] = 0.0F;
- }
- }
- else if (texImage->_BaseFormat == GL_INTENSITY) {
- GLint col;
- for (col = 0; col < width; col++) {
- rgba[col][GCOMP] = 0.0F;
- rgba[col][BCOMP] = 0.0F;
- rgba[col][ACOMP] = 1.0F;
- }
- }
- _mesa_pack_rgba_span_float(ctx, width, (GLfloat (*)[4]) rgba,
- format, type, dest,
- &ctx->Pack, transferOps);
- }
+/**
+ * glGetTexImage for color formats (RGBA, RGB, alpha, LA, etc).
+ * Compressed textures are handled here as well.
+ */
+static void
+get_tex_rgba(struct gl_context *ctx, GLuint dimensions,
+ GLenum format, GLenum type, GLvoid *pixels,
+ struct gl_texture_image *texImage)
+{
+ const GLenum dataType = _mesa_get_format_datatype(texImage->TexFormat);
+ GLbitfield transferOps = 0x0;
- /* Unmap the src texture buffer */
- ctx->Driver.UnmapTextureImage(ctx, texImage, img);
- }
- else {
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "glGetTexImage");
- break;
- }
+ /* In general, clamping does not apply to glGetTexImage, except when
+ * the returned type of the image can't hold negative values.
+ */
+ 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;
}
+ }
- free(rgba);
+ if (_mesa_is_format_compressed(texImage->TexFormat)) {
+ get_tex_rgba_compressed(ctx, dimensions, format, type,
+ pixels, texImage, transferOps);
+ }
+ else {
+ get_tex_rgba_uncompressed(ctx, dimensions, format, type,
+ pixels, texImage, transferOps);
}
}
{
const GLenum target = texImage->TexObject->Target;
GLboolean memCopy = GL_FALSE;
+ GLenum texBaseFormat = _mesa_get_format_base_format(texImage->TexFormat);
/*
- * Check if the src/dst formats are compatible.
- * Also note that GL's pixel transfer ops don't apply to glGetTexImage()
- * so we don't have to worry about those.
- * XXX more format combinations could be supported here.
+ * 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 ((texImage->TexFormat == MESA_FORMAT_ARGB8888 ||
- texImage->TexFormat == MESA_FORMAT_SARGB8) &&
- format == GL_BGRA &&
- (type == GL_UNSIGNED_BYTE || type == GL_UNSIGNED_INT_8_8_8_8_REV) &&
- !ctx->Pack.SwapBytes &&
- _mesa_little_endian()) {
- memCopy = GL_TRUE;
- }
- else if ((texImage->TexFormat == MESA_FORMAT_AL88 ||
- texImage->TexFormat == MESA_FORMAT_SLA8) &&
- format == GL_LUMINANCE_ALPHA &&
- type == GL_UNSIGNED_BYTE &&
- !ctx->Pack.SwapBytes &&
- _mesa_little_endian()) {
- memCopy = GL_TRUE;
- }
- else if ((texImage->TexFormat == MESA_FORMAT_L8 ||
- texImage->TexFormat == MESA_FORMAT_SL8) &&
- format == GL_LUMINANCE &&
- type == GL_UNSIGNED_BYTE) {
- memCopy = GL_TRUE;
- }
- else if (texImage->TexFormat == MESA_FORMAT_L16 &&
- format == GL_LUMINANCE &&
- type == GL_UNSIGNED_SHORT) {
- memCopy = GL_TRUE;
- }
- else if (texImage->TexFormat == MESA_FORMAT_A8 &&
- format == GL_ALPHA &&
- type == GL_UNSIGNED_BYTE) {
- memCopy = GL_TRUE;
- }
- else if (texImage->TexFormat == MESA_FORMAT_A16 &&
- format == GL_ALPHA &&
- type == GL_UNSIGNED_SHORT) {
- memCopy = GL_TRUE;
- }
+ 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);
}
if (memCopy) {
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)) {
* All error checking will have been done before this routine is called.
*/
void
-_mesa_get_compressed_teximage(struct gl_context *ctx, GLenum target, GLint level,
- GLvoid *img,
- struct gl_texture_object *texObj,
- struct gl_texture_image *texImage)
+_mesa_get_compressed_teximage(struct gl_context *ctx,
+ struct gl_texture_image *texImage,
+ GLvoid *img)
{
const GLuint row_stride =
_mesa_format_row_stride(texImage->TexFormat, texImage->Width);
}
+/**
+ * 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.
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;
+ 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;
}
- if (_mesa_sizeof_packed_type(type) <= 0) {
- _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexImage(type)" );
- return GL_TRUE;
- }
-
- if (_mesa_components_in_format(format) <= 0 ||
- format == GL_STENCIL_INDEX ||
- format == GL_COLOR_INDEX) {
- _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexImage(format)" );
- return GL_TRUE;
- }
-
- if (!ctx->Extensions.ARB_depth_texture && _mesa_is_depth_format(format)) {
- _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
- return GL_TRUE;
- }
-
- if (!ctx->Extensions.MESA_ycbcr_texture && _mesa_is_ycbcr_format(format)) {
- _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
- return GL_TRUE;
- }
-
- if (!ctx->Extensions.EXT_packed_depth_stencil
- && _mesa_is_depthstencil_format(format)) {
- _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
- return GL_TRUE;
- }
-
- if (!ctx->Extensions.ATI_envmap_bumpmap
- && _mesa_is_dudv_format(format)) {
- _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
+ err = _mesa_error_check_format_and_type(ctx, format, type);
+ if (err != GL_NO_ERROR) {
+ _mesa_error(ctx, err, "glGetTexImage(format/type)");
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_legal_format_and_type(ctx, format, type)) {
- /* GL_INVALID_OPERATION is generated by a format/type
- * mismatch (see the 1.2 spec page 94, sec 3.6.4.)
- */
- _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(target)");
- return GL_TRUE;
- }
-
texImage = _mesa_select_tex_image(ctx, texObj, target, level);
if (!texImage) {
/* non-existant texture image */
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)) {
texObj = _mesa_get_current_tex_object(ctx, target);
texImage = _mesa_select_tex_image(ctx, texObj, target, level);
+ if (_mesa_is_zero_size_texture(texImage))
+ return;
+
if (MESA_VERBOSE & (VERBOSE_API | VERBOSE_TEXTURE)) {
_mesa_debug(ctx, "glGetTexImage(tex %u) format = %s, w=%d, h=%d,"
" dstFmt=0x%x, dstType=0x%x\n",
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;
texObj = _mesa_get_current_tex_object(ctx, target);
texImage = _mesa_select_tex_image(ctx, texObj, target, level);
+ if (_mesa_is_zero_size_texture(texImage))
+ return;
+
if (MESA_VERBOSE & (VERBOSE_API | VERBOSE_TEXTURE)) {
_mesa_debug(ctx,
"glGetCompressedTexImage(tex %u) format = %s, w=%d, h=%d\n",
_mesa_lock_texture(ctx, texObj);
{
- ctx->Driver.GetCompressedTexImage(ctx, target, level, img,
- texObj, texImage);
+ ctx->Driver.GetCompressedTexImage(ctx, texImage, img);
}
_mesa_unlock_texture(ctx, texObj);
}
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