#include "mtypes.h"
#include "pack.h"
#include "pbo.h"
+#include "pixelstore.h"
#include "texcompress.h"
#include "texgetimage.h"
#include "teximage.h"
-
-
+#include "texobj.h"
+#include "texstore.h"
+#include "format_utils.h"
+#include "pixeltransfer.h"
/**
* Can the given type represent negative values?
*/
static void
get_tex_depth(struct gl_context *ctx, GLuint dimensions,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLsizei width, GLsizei height, GLint depth,
GLenum format, GLenum type, GLvoid *pixels,
struct gl_texture_image *texImage)
{
- const GLint width = texImage->Width;
- const GLint height = texImage->Height;
- const GLint depth = texImage->Depth;
GLint img, row;
GLfloat *depthRow = malloc(width * sizeof(GLfloat));
GLint srcRowStride;
/* map src texture buffer */
- ctx->Driver.MapTextureImage(ctx, texImage, img,
- 0, 0, width, height, GL_MAP_READ_BIT,
- &srcMap, &srcRowStride);
+ ctx->Driver.MapTextureImage(ctx, texImage, zoffset + img,
+ xoffset, yoffset, width, height,
+ GL_MAP_READ_BIT, &srcMap, &srcRowStride);
if (srcMap) {
for (row = 0; row < height; row++) {
_mesa_pack_depth_span(ctx, width, dest, type, depthRow, &ctx->Pack);
}
- ctx->Driver.UnmapTextureImage(ctx, texImage, img);
+ ctx->Driver.UnmapTextureImage(ctx, texImage, zoffset + img);
}
else {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glGetTexImage");
*/
static void
get_tex_depth_stencil(struct gl_context *ctx, GLuint dimensions,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLsizei width, GLsizei height, GLint depth,
GLenum format, GLenum type, GLvoid *pixels,
struct gl_texture_image *texImage)
{
- const GLint width = texImage->Width;
- const GLint height = texImage->Height;
- const GLint depth = texImage->Depth;
GLint img, row;
+ assert(format == GL_DEPTH_STENCIL);
+ assert(type == GL_UNSIGNED_INT_24_8 ||
+ type == GL_FLOAT_32_UNSIGNED_INT_24_8_REV);
+
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);
+ ctx->Driver.MapTextureImage(ctx, texImage, zoffset + img,
+ xoffset, yoffset, width, height,
+ GL_MAP_READ_BIT, &srcMap, &rowstride);
if (srcMap) {
for (row = 0; row < height; row++) {
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));
+ _mesa_unpack_depth_stencil_row(texImage->TexFormat,
+ width,
+ (const GLuint *) src,
+ type, dest);
if (ctx->Pack.SwapBytes) {
_mesa_swap4((GLuint *) dest, width);
}
}
- ctx->Driver.UnmapTextureImage(ctx, texImage, img);
+ ctx->Driver.UnmapTextureImage(ctx, texImage, zoffset + img);
+ }
+ else {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glGetTexImage");
+ break;
+ }
+ }
+}
+
+/**
+ * glGetTexImage for stencil pixels.
+ */
+static void
+get_tex_stencil(struct gl_context *ctx, GLuint dimensions,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLsizei width, GLsizei height, GLint depth,
+ GLenum format, GLenum type, GLvoid *pixels,
+ struct gl_texture_image *texImage)
+{
+ GLint img, row;
+
+ assert(format == GL_STENCIL_INDEX);
+
+ for (img = 0; img < depth; img++) {
+ GLubyte *srcMap;
+ GLint rowstride;
+
+ /* map src texture buffer */
+ ctx->Driver.MapTextureImage(ctx, texImage, zoffset + img,
+ xoffset, yoffset, 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_ubyte_stencil_row(texImage->TexFormat,
+ width,
+ (const GLuint *) src,
+ dest);
+ }
+
+ ctx->Driver.UnmapTextureImage(ctx, texImage, zoffset + img);
}
else {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glGetTexImage");
*/
static void
get_tex_ycbcr(struct gl_context *ctx, GLuint dimensions,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLsizei width, GLsizei height, GLint depth,
GLenum format, GLenum type, GLvoid *pixels,
struct gl_texture_image *texImage)
{
- const GLint width = texImage->Width;
- const GLint height = texImage->Height;
- const GLint depth = texImage->Depth;
GLint img, row;
for (img = 0; img < depth; img++) {
GLint rowstride;
/* map src texture buffer */
- ctx->Driver.MapTextureImage(ctx, texImage, img,
- 0, 0, width, height, GL_MAP_READ_BIT,
- &srcMap, &rowstride);
+ ctx->Driver.MapTextureImage(ctx, texImage, zoffset + img,
+ xoffset, yoffset, width, height,
+ GL_MAP_READ_BIT, &srcMap, &rowstride);
if (srcMap) {
for (row = 0; row < height; row++) {
}
}
- ctx->Driver.UnmapTextureImage(ctx, texImage, img);
+ ctx->Driver.UnmapTextureImage(ctx, texImage, zoffset + img);
}
else {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glGetTexImage");
}
}
+/**
+ * Depending on the base format involved we may need to apply a rebase
+ * transform (for example: if we download to a Luminance format we want
+ * G=0 and B=0).
+ */
+static bool
+teximage_needs_rebase(mesa_format texFormat, GLenum baseFormat,
+ bool is_compressed, uint8_t *rebaseSwizzle)
+{
+ bool needsRebase = false;
+
+ if (baseFormat == GL_LUMINANCE ||
+ baseFormat == GL_INTENSITY) {
+ needsRebase = true;
+ rebaseSwizzle[0] = MESA_FORMAT_SWIZZLE_X;
+ rebaseSwizzle[1] = MESA_FORMAT_SWIZZLE_ZERO;
+ rebaseSwizzle[2] = MESA_FORMAT_SWIZZLE_ZERO;
+ rebaseSwizzle[3] = MESA_FORMAT_SWIZZLE_ONE;
+ } else if (baseFormat == GL_LUMINANCE_ALPHA) {
+ needsRebase = true;
+ rebaseSwizzle[0] = MESA_FORMAT_SWIZZLE_X;
+ rebaseSwizzle[1] = MESA_FORMAT_SWIZZLE_ZERO;
+ rebaseSwizzle[2] = MESA_FORMAT_SWIZZLE_ZERO;
+ rebaseSwizzle[3] = MESA_FORMAT_SWIZZLE_W;
+ } else if (!is_compressed &&
+ (baseFormat != _mesa_get_format_base_format(texFormat))) {
+ needsRebase =
+ _mesa_compute_rgba2base2rgba_component_mapping(baseFormat,
+ rebaseSwizzle);
+ }
+
+ return needsRebase;
+}
+
/**
* Get a color texture image with decompression.
*/
static void
get_tex_rgba_compressed(struct gl_context *ctx, GLuint dimensions,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLsizei width, GLsizei height, GLint depth,
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 =
+ 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, *tempSlice, *srcRow;
- GLuint row, slice;
+ GLfloat *tempImage, *tempSlice;
+ GLuint slice;
+ int srcStride, dstStride;
+ uint32_t dstFormat;
+ bool needsRebase;
+ uint8_t rebaseSwizzle[4];
/* Decompress into temp float buffer, then pack into user buffer */
- tempImage = malloc(width * height * depth
- * 4 * sizeof(GLfloat));
+ tempImage = malloc(width * height * depth * 4 * sizeof(GLfloat));
if (!tempImage) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glGetTexImage()");
return;
tempSlice = tempImage + slice * 4 * width * height;
- ctx->Driver.MapTextureImage(ctx, texImage, slice,
- 0, 0, width, height,
+ ctx->Driver.MapTextureImage(ctx, texImage, zoffset + slice,
+ xoffset, yoffset, 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);
+ ctx->Driver.UnmapTextureImage(ctx, texImage, zoffset + slice);
}
else {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glGetTexImage");
}
}
- 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);
- }
+ needsRebase = teximage_needs_rebase(texFormat, baseFormat, true,
+ rebaseSwizzle);
+ srcStride = 4 * width * sizeof(GLfloat);
+ dstStride = _mesa_image_row_stride(&ctx->Pack, width, format, type);
+ dstFormat = _mesa_format_from_format_and_type(format, type);
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;
+ void *dest = _mesa_image_address(dimensions, &ctx->Pack, pixels,
+ width, height, format, type,
+ slice, 0, 0);
+ _mesa_format_convert(dest, dstFormat, dstStride,
+ tempSlice, RGBA32_FLOAT, srcStride,
+ width, height,
+ needsRebase ? rebaseSwizzle : NULL);
+
+ /* Handle byte swapping if required */
+ if (ctx->Pack.SwapBytes) {
+ _mesa_swap_bytes_2d_image(format, type, &ctx->Pack,
+ width, height, dest, dest);
}
+
tempSlice += 4 * width * height;
}
*/
static void
get_tex_rgba_uncompressed(struct gl_context *ctx, GLuint dimensions,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLsizei width, GLsizei height, GLint depth,
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 =
+ 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;
- }
-
- 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;
- }
- /* 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;
- }
- }
+ GLuint img;
+ GLboolean dst_is_integer;
+ uint32_t dst_format;
+ int dst_stride;
+ uint8_t rebaseSwizzle[4];
+ bool needsRebase;
+ void *rgba = NULL;
+
+ needsRebase = teximage_needs_rebase(texFormat, texImage->_BaseFormat, false,
+ rebaseSwizzle);
+
+ /* Describe the dst format */
+ dst_is_integer = _mesa_is_enum_format_integer(format);
+ dst_format = _mesa_format_from_format_and_type(format, type);
+ dst_stride = _mesa_image_row_stride(&ctx->Pack, width, format, type);
+
+ /* Since _mesa_format_convert does not handle transferOps we need to handle
+ * them before we call the function. This requires to convert to RGBA float
+ * first so we can call _mesa_apply_rgba_transfer_ops. If the dst format is
+ * integer then transferOps do not apply.
+ */
+ assert(!transferOps || (transferOps && !dst_is_integer));
+ (void) dst_is_integer; /* silence unused var warning */
for (img = 0; img < depth; img++) {
GLubyte *srcMap;
GLint rowstride;
+ GLubyte *img_src;
+ void *dest;
+ void *src;
+ int src_stride;
+ uint32_t src_format;
/* map src texture buffer */
- ctx->Driver.MapTextureImage(ctx, texImage, img,
- 0, 0, width, height, GL_MAP_READ_BIT,
+ ctx->Driver.MapTextureImage(ctx, texImage, zoffset + img,
+ xoffset, yoffset, 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);
+ if (!srcMap) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glGetTexImage");
+ goto done;
+ }
- 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);
+ img_src = srcMap;
+ dest = _mesa_image_address(dimensions, &ctx->Pack, pixels,
+ width, height, format, type,
+ img, 0, 0);
+
+ if (transferOps) {
+ uint32_t rgba_format;
+ int rgba_stride;
+ bool need_convert = false;
+
+ /* We will convert to RGBA float */
+ rgba_format = RGBA32_FLOAT;
+ rgba_stride = width * 4 * sizeof(GLfloat);
+
+ /* If we are lucky and the dst format matches the RGBA format we need
+ * to convert to, then we can convert directly into the dst buffer
+ * and avoid the final conversion/copy from the rgba buffer to the dst
+ * buffer.
+ */
+ if (format == rgba_format) {
+ rgba = dest;
+ } else {
+ need_convert = true;
+ if (rgba == NULL) { /* Allocate the RGBA buffer only once */
+ rgba = malloc(height * rgba_stride);
+ if (!rgba) {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glGetTexImage()");
+ ctx->Driver.UnmapTextureImage(ctx, texImage, img);
+ return;
}
- } 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;
+ }
+ }
+
+ _mesa_format_convert(rgba, rgba_format, rgba_stride,
+ img_src, texFormat, rowstride,
+ width, height,
+ needsRebase ? rebaseSwizzle : NULL);
+
+ /* Handle transfer ops now */
+ _mesa_apply_rgba_transfer_ops(ctx, transferOps, width * height, rgba);
+
+ /* If we had to rebase, we have already handled that */
+ needsRebase = false;
+
+ /* If we were lucky and our RGBA conversion matches the dst format,
+ * then we are done.
+ */
+ if (!need_convert)
+ goto do_swap;
+
+ /* Otherwise, we need to convert from RGBA to dst next */
+ src = rgba;
+ src_format = rgba_format;
+ src_stride = rgba_stride;
+ } else {
+ /* No RGBA conversion needed, convert directly to dst */
+ src = img_src;
+ src_format = texFormat;
+ src_stride = rowstride;
}
+
+ /* Do the conversion to destination format */
+ _mesa_format_convert(dest, dst_format, dst_stride,
+ src, src_format, src_stride,
+ width, height,
+ needsRebase ? rebaseSwizzle : NULL);
+
+ do_swap:
+ /* Handle byte swapping if required */
+ if (ctx->Pack.SwapBytes)
+ _mesa_swap_bytes_2d_image(format, type, &ctx->Pack,
+ width, height, dest, dest);
+
+ /* Unmap the src texture buffer */
+ ctx->Driver.UnmapTextureImage(ctx, texImage, zoffset + img);
}
+done:
free(rgba);
}
*/
static void
get_tex_rgba(struct gl_context *ctx, GLuint dimensions,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLsizei width, GLsizei height, GLint depth,
GLenum format, GLenum type, GLvoid *pixels,
struct gl_texture_image *texImage)
{
}
if (_mesa_is_format_compressed(texImage->TexFormat)) {
- get_tex_rgba_compressed(ctx, dimensions, format, type,
+ get_tex_rgba_compressed(ctx, dimensions,
+ xoffset, yoffset, zoffset,
+ width, height, depth,
+ format, type,
pixels, texImage, transferOps);
}
else {
- get_tex_rgba_uncompressed(ctx, dimensions, format, type,
+ get_tex_rgba_uncompressed(ctx, dimensions,
+ xoffset, yoffset, zoffset,
+ width, height, depth,
+ format, type,
pixels, texImage, transferOps);
}
}
* \return GL_TRUE if done, GL_FALSE otherwise
*/
static GLboolean
-get_tex_memcpy(struct gl_context *ctx, GLenum format, GLenum type,
- GLvoid *pixels,
+get_tex_memcpy(struct gl_context *ctx,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLsizei width, GLsizei height, GLint depth,
+ GLenum format, GLenum type, GLvoid *pixels,
struct gl_texture_image *texImage)
{
const GLenum target = texImage->TexObject->Target;
texBaseFormat == texImage->_BaseFormat) {
memCopy = _mesa_format_matches_format_and_type(texImage->TexFormat,
format, type,
- ctx->Pack.SwapBytes);
+ ctx->Pack.SwapBytes, NULL);
+ }
+
+ if (depth > 1) {
+ /* only a single slice is supported at this time */
+ memCopy = FALSE;
}
if (memCopy) {
const GLuint bpp = _mesa_get_format_bytes(texImage->TexFormat);
- const GLuint bytesPerRow = texImage->Width * bpp;
+ const GLint bytesPerRow = width * bpp;
GLubyte *dst =
- _mesa_image_address2d(&ctx->Pack, pixels, texImage->Width,
- texImage->Height, format, type, 0, 0);
+ _mesa_image_address2d(&ctx->Pack, pixels, width, height,
+ format, type, 0, 0);
const GLint dstRowStride =
- _mesa_image_row_stride(&ctx->Pack, texImage->Width, format, type);
+ _mesa_image_row_stride(&ctx->Pack, width, format, type);
GLubyte *src;
GLint srcRowStride;
/* map src texture buffer */
- ctx->Driver.MapTextureImage(ctx, texImage, 0,
- 0, 0, texImage->Width, texImage->Height,
+ ctx->Driver.MapTextureImage(ctx, texImage, zoffset,
+ xoffset, yoffset, width, height,
GL_MAP_READ_BIT, &src, &srcRowStride);
if (src) {
if (bytesPerRow == dstRowStride && bytesPerRow == srcRowStride) {
- memcpy(dst, src, bytesPerRow * texImage->Height);
+ memcpy(dst, src, bytesPerRow * height);
}
else {
GLuint row;
- for (row = 0; row < texImage->Height; row++) {
+ for (row = 0; row < height; row++) {
memcpy(dst, src, bytesPerRow);
dst += dstRowStride;
src += srcRowStride;
}
/* unmap src texture buffer */
- ctx->Driver.UnmapTextureImage(ctx, texImage, 0);
+ ctx->Driver.UnmapTextureImage(ctx, texImage, zoffset);
}
else {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glGetTexImage");
/**
- * This is the software fallback for Driver.GetTexImage().
+ * This is the software fallback for Driver.GetTexSubImage().
* All error checking will have been done before this routine is called.
* We'll call ctx->Driver.MapTextureImage() to access the data, then
* unmap with ctx->Driver.UnmapTextureImage().
*/
void
-_mesa_get_teximage(struct gl_context *ctx,
- GLenum format, GLenum type, GLvoid *pixels,
- struct gl_texture_image *texImage)
+_mesa_GetTexSubImage_sw(struct gl_context *ctx,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLsizei width, GLsizei height, GLint depth,
+ GLenum format, GLenum type, GLvoid *pixels,
+ struct gl_texture_image *texImage)
{
const GLuint dimensions =
_mesa_get_texture_dimensions(texImage->TexObject->Target);
*/
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)");
pixels = ADD_POINTERS(buf, pixels);
}
- if (get_tex_memcpy(ctx, format, type, pixels, texImage)) {
+ /* for all array textures, the Z axis selects the layer */
+ if (texImage->TexObject->Target == GL_TEXTURE_1D_ARRAY) {
+ depth = height;
+ height = 1;
+ zoffset = yoffset;
+ yoffset = 0;
+ assert(zoffset + depth <= texImage->Height);
+ } else {
+ assert(zoffset + depth <= texImage->Depth);
+ }
+
+ if (get_tex_memcpy(ctx, xoffset, yoffset, zoffset, width, height, depth,
+ format, type, pixels, texImage)) {
/* all done */
}
else if (format == GL_DEPTH_COMPONENT) {
- get_tex_depth(ctx, dimensions, format, type, pixels, texImage);
+ get_tex_depth(ctx, dimensions, xoffset, yoffset, zoffset,
+ width, height, depth, format, type, pixels, texImage);
}
else if (format == GL_DEPTH_STENCIL_EXT) {
- get_tex_depth_stencil(ctx, dimensions, format, type, pixels, texImage);
+ get_tex_depth_stencil(ctx, dimensions, xoffset, yoffset, zoffset,
+ width, height, depth, format, type, pixels,
+ texImage);
+ }
+ else if (format == GL_STENCIL_INDEX) {
+ get_tex_stencil(ctx, dimensions, xoffset, yoffset, zoffset,
+ width, height, depth, format, type, pixels, texImage);
}
else if (format == GL_YCBCR_MESA) {
- get_tex_ycbcr(ctx, dimensions, format, type, pixels, texImage);
+ get_tex_ycbcr(ctx, dimensions, xoffset, yoffset, zoffset,
+ width, height, depth, format, type, pixels, texImage);
}
else {
- get_tex_rgba(ctx, dimensions, format, type, pixels, texImage);
+ get_tex_rgba(ctx, dimensions, xoffset, yoffset, zoffset,
+ width, height, depth, format, type, pixels, texImage);
}
if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
- ctx->Driver.UnmapBuffer(ctx, ctx->Pack.BufferObj);
+ ctx->Driver.UnmapBuffer(ctx, ctx->Pack.BufferObj, MAP_INTERNAL);
}
}
/**
- * This is the software fallback for Driver.GetCompressedTexImage().
+ * This is the software fallback for Driver.GetCompressedTexSubImage().
* All error checking will have been done before this routine is called.
*/
void
-_mesa_get_compressed_teximage(struct gl_context *ctx,
- struct gl_texture_image *texImage,
- GLvoid *img)
+_mesa_GetCompressedTexSubImage_sw(struct gl_context *ctx,
+ struct gl_texture_image *texImage,
+ GLint xoffset, GLint yoffset,
+ GLint zoffset, GLsizei width,
+ GLint height, GLint depth,
+ GLvoid *img)
{
- const GLuint row_stride =
- _mesa_format_row_stride(texImage->TexFormat, texImage->Width);
- GLuint i;
- GLubyte *src;
- GLint srcRowStride;
+ const GLuint dimensions =
+ _mesa_get_texture_dimensions(texImage->TexObject->Target);
+ struct compressed_pixelstore store;
+ GLint slice;
+ GLubyte *dest;
+
+ _mesa_compute_compressed_pixelstore(dimensions, texImage->TexFormat,
+ width, height, depth,
+ &ctx->Pack, &store);
if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
/* pack texture image into a PBO */
- GLubyte *buf = (GLubyte *)
+ dest = (GLubyte *)
ctx->Driver.MapBufferRange(ctx, 0, ctx->Pack.BufferObj->Size,
- GL_MAP_WRITE_BIT, ctx->Pack.BufferObj);
- if (!buf) {
+ GL_MAP_WRITE_BIT, ctx->Pack.BufferObj,
+ MAP_INTERNAL);
+ if (!dest) {
/* out of memory or other unexpected error */
_mesa_error(ctx, GL_OUT_OF_MEMORY,
"glGetCompresssedTexImage(map PBO failed)");
return;
}
- img = ADD_POINTERS(buf, img);
+ dest = ADD_POINTERS(dest, img);
+ } else {
+ dest = img;
}
- /* map src texture buffer */
- ctx->Driver.MapTextureImage(ctx, texImage, 0,
- 0, 0, texImage->Width, texImage->Height,
- GL_MAP_READ_BIT, &src, &srcRowStride);
+ dest += store.SkipBytes;
- if (src) {
- /* no pixelstore or pixel transfer, but respect stride */
+ for (slice = 0; slice < store.CopySlices; slice++) {
+ GLint srcRowStride;
+ GLubyte *src;
- if (row_stride == srcRowStride) {
- const GLuint size = _mesa_format_image_size(texImage->TexFormat,
- texImage->Width,
- texImage->Height,
- texImage->Depth);
- memcpy(img, src, size);
- }
- else {
- GLuint bw, bh;
- _mesa_get_format_block_size(texImage->TexFormat, &bw, &bh);
- for (i = 0; i < (texImage->Height + bh - 1) / bh; i++) {
- memcpy((GLubyte *)img + i * row_stride,
- (GLubyte *)src + i * srcRowStride,
- row_stride);
+ /* map src texture buffer */
+ ctx->Driver.MapTextureImage(ctx, texImage, zoffset + slice,
+ xoffset, yoffset, width, height,
+ GL_MAP_READ_BIT, &src, &srcRowStride);
+
+ if (src) {
+ GLint i;
+ for (i = 0; i < store.CopyRowsPerSlice; i++) {
+ memcpy(dest, src, store.CopyBytesPerRow);
+ dest += store.TotalBytesPerRow;
+ src += srcRowStride;
}
- }
- ctx->Driver.UnmapTextureImage(ctx, texImage, 0);
- }
- else {
- _mesa_error(ctx, GL_OUT_OF_MEMORY, "glGetCompresssedTexImage");
+ ctx->Driver.UnmapTextureImage(ctx, texImage, zoffset + slice);
+
+ /* Advance to next slice */
+ dest += store.TotalBytesPerRow * (store.TotalRowsPerSlice -
+ store.CopyRowsPerSlice);
+
+ } else {
+ _mesa_error(ctx, GL_OUT_OF_MEMORY, "glGetCompresssedTexImage");
+ }
}
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.
+ * Validate the texture target enum supplied to glGetTex(ture)Image or
+ * glGetCompressedTex(ture)Image.
*/
static GLboolean
-legal_getteximage_target(struct gl_context *ctx, GLenum target)
+legal_getteximage_target(struct gl_context *ctx, GLenum target, bool dsa)
{
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.MESA_texture_array ||
- ctx->Extensions.EXT_texture_array);
+ return ctx->Extensions.EXT_texture_array;
case GL_TEXTURE_CUBE_MAP_ARRAY:
return ctx->Extensions.ARB_texture_cube_map_array;
+
+ /* Section 8.11 (Texture Queries) of the OpenGL 4.5 core profile spec
+ * (30.10.2014) says:
+ * "An INVALID_ENUM error is generated if the effective target is not
+ * one of TEXTURE_1D, TEXTURE_2D, TEXTURE_3D, TEXTURE_1D_ARRAY,
+ * TEXTURE_2D_ARRAY, TEXTURE_CUBE_MAP_ARRAY, TEXTURE_RECTANGLE, one of
+ * the targets from table 8.19 (for GetTexImage and GetnTexImage *only*),
+ * or TEXTURE_CUBE_MAP (for GetTextureImage *only*)." (Emphasis added.)
+ */
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
+ return dsa ? GL_FALSE : ctx->Extensions.ARB_texture_cube_map;
+ case GL_TEXTURE_CUBE_MAP:
+ return dsa ? GL_TRUE : GL_FALSE;
default:
return GL_FALSE;
}
/**
- * Do error checking for a glGetTexImage() call.
- * \return GL_TRUE if any error, GL_FALSE if no errors.
+ * Wrapper for _mesa_select_tex_image() which can handle target being
+ * GL_TEXTURE_CUBE_MAP in which case we use zoffset to select a cube face.
+ * This can happen for glGetTextureImage and glGetTextureSubImage (DSA
+ * functions).
*/
-static GLboolean
-getteximage_error_check(struct gl_context *ctx, GLenum target, GLint level,
- GLenum format, GLenum type, GLsizei clientMemSize,
- GLvoid *pixels )
+static struct gl_texture_image *
+select_tex_image(const struct gl_texture_object *texObj, GLenum target,
+ GLint level, GLint zoffset)
+{
+ assert(level >= 0);
+ assert(level < MAX_TEXTURE_LEVELS);
+ if (target == GL_TEXTURE_CUBE_MAP) {
+ assert(zoffset >= 0);
+ assert(zoffset < 6);
+ target = GL_TEXTURE_CUBE_MAP_POSITIVE_X + zoffset;
+ }
+ return _mesa_select_tex_image(texObj, target, level);
+}
+
+
+/**
+ * Error-check the offset and size arguments to
+ * glGet[Compressed]TextureSubImage(). Also checks if the specified
+ * texture image is missing.
+ * \return true if error, false if no error.
+ */
+static bool
+dimensions_error_check(struct gl_context *ctx,
+ struct gl_texture_object *texObj,
+ GLenum target, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLsizei width, GLsizei height, GLsizei depth,
+ const char *caller)
+{
+ const struct gl_texture_image *texImage;
+ int i;
+
+ if (xoffset < 0) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "%s(xoffset = %d)", caller, xoffset);
+ return true;
+ }
+
+ if (yoffset < 0) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "%s(yoffset = %d)", caller, yoffset);
+ return true;
+ }
+
+ if (zoffset < 0) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "%s(zoffset = %d)", caller, zoffset);
+ return true;
+ }
+
+ if (width < 0) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "%s(width = %d)", caller, width);
+ return true;
+ }
+
+ if (height < 0) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "%s(height = %d)", caller, height);
+ return true;
+ }
+
+ if (depth < 0) {
+ _mesa_error(ctx, GL_INVALID_VALUE, "%s(depth = %d)", caller, depth);
+ return true;
+ }
+
+ /* do special per-target checks */
+ switch (target) {
+ case GL_TEXTURE_1D:
+ if (yoffset != 0) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "%s(1D, yoffset = %d)", caller, yoffset);
+ return true;
+ }
+ if (height > 1) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "%s(1D, height = %d)", caller, height);
+ return true;
+ }
+ /* fall-through */
+ case GL_TEXTURE_1D_ARRAY:
+ case GL_TEXTURE_2D:
+ case GL_TEXTURE_RECTANGLE:
+ if (zoffset != 0) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "%s(zoffset = %d)", caller, zoffset);
+ return true;
+ }
+ if (depth > 1) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "%s(depth = %d)", caller, depth);
+ return true;
+ }
+ break;
+ case GL_TEXTURE_CUBE_MAP:
+ /* Non-array cube maps are special because we have a gl_texture_image
+ * per face.
+ */
+ if (zoffset + depth > 6) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "%s(zoffset + depth = %d)", caller, zoffset + depth);
+ return true;
+ }
+ /* check that the range of faces exist */
+ for (i = 0; i < depth; i++) {
+ GLenum face = GL_TEXTURE_CUBE_MAP_POSITIVE_X + zoffset + i;
+ if (!_mesa_select_tex_image(texObj, face, level)) {
+ /* non-existant face */
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "%s(missing cube face)", caller);
+ return true;
+ }
+ }
+ break;
+ default:
+ ; /* nothing */
+ }
+
+ texImage = select_tex_image(texObj, target, level, zoffset);
+ if (!texImage) {
+ /* missing texture image */
+ _mesa_error(ctx, GL_INVALID_OPERATION, "%s(missing image)", caller);
+ return true;
+ }
+
+ if (xoffset + width > texImage->Width) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "%s(xoffset %d + width %d > %u)",
+ caller, xoffset, width, texImage->Width);
+ return true;
+ }
+
+ if (yoffset + height > texImage->Height) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "%s(yoffset %d + height %d > %u)",
+ caller, yoffset, height, texImage->Height);
+ return true;
+ }
+
+ if (target != GL_TEXTURE_CUBE_MAP) {
+ /* Cube map error checking was done above */
+ if (zoffset + depth > texImage->Depth) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "%s(zoffset %d + depth %d > %u)",
+ caller, zoffset, depth, texImage->Depth);
+ return true;
+ }
+ }
+
+ /* Extra checks for compressed textures */
+ {
+ GLuint bw, bh, bd;
+ _mesa_get_format_block_size_3d(texImage->TexFormat, &bw, &bh, &bd);
+ if (bw > 1 || bh > 1 || bd > 1) {
+ /* offset must be multiple of block size */
+ if (xoffset % bw != 0) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "%s(xoffset = %d)", caller, xoffset);
+ return true;
+ }
+ if (target != GL_TEXTURE_1D && target != GL_TEXTURE_1D_ARRAY) {
+ if (yoffset % bh != 0) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "%s(yoffset = %d)", caller, yoffset);
+ return true;
+ }
+ }
+
+ if (zoffset % bd != 0) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "%s(zoffset = %d)", caller, zoffset);
+ return true;
+ }
+
+ /* The size must be a multiple of bw x bh x bd, or we must be using a
+ * offset+size that exactly hits the edge of the image.
+ */
+ if ((width % bw != 0) &&
+ (xoffset + width != (GLint) texImage->Width)) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "%s(width = %d)", caller, width);
+ return true;
+ }
+
+ if ((height % bh != 0) &&
+ (yoffset + height != (GLint) texImage->Height)) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "%s(height = %d)", caller, height);
+ return true;
+ }
+
+ if ((depth % bd != 0) &&
+ (zoffset + depth != (GLint) texImage->Depth)) {
+ _mesa_error(ctx, GL_INVALID_VALUE,
+ "%s(depth = %d)", caller, depth);
+ return true;
+ }
+ }
+ }
+
+ if (width == 0 || height == 0 || depth == 0) {
+ /* Not an error, but nothing to do. Return 'true' so that the
+ * caller simply returns.
+ */
+ return true;
+ }
+
+ return false;
+}
+
+
+/**
+ * Do PBO-related error checking for getting uncompressed images.
+ * \return true if there was an error (or the GetTexImage is to be a no-op)
+ */
+static bool
+pbo_error_check(struct gl_context *ctx, GLenum target,
+ GLsizei width, GLsizei height, GLsizei depth,
+ GLenum format, GLenum type, GLsizei clientMemSize,
+ GLvoid *pixels,
+ const char *caller)
{
- 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;
+
+ if (!_mesa_validate_pbo_access(dimensions, &ctx->Pack, width, height, depth,
+ format, type, clientMemSize, pixels)) {
+ if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "%s(out of bounds PBO access)", caller);
+ } else {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "%s(out of bounds access: bufSize (%d) is too small)",
+ caller, clientMemSize);
+ }
+ return true;
+ }
+
+ if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
+ /* PBO should not be mapped */
+ if (_mesa_check_disallowed_mapping(ctx->Pack.BufferObj)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "%s(PBO is mapped)", caller);
+ return true;
+ }
+ }
+
+ if (!_mesa_is_bufferobj(ctx->Pack.BufferObj) && !pixels) {
+ /* not an error, do nothing */
+ return true;
+ }
+
+ return false;
+}
+
+
+/**
+ * Do error checking for all (non-compressed) get-texture-image functions.
+ * \return true if any error, false if no errors.
+ */
+static bool
+getteximage_error_check(struct gl_context *ctx,
+ struct gl_texture_object *texObj,
+ GLenum target, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLsizei width, GLsizei height, GLsizei depth,
+ GLenum format, GLenum type, GLsizei bufSize,
+ GLvoid *pixels, const char *caller)
+{
+ struct gl_texture_image *texImage;
GLenum baseFormat, err;
+ GLint maxLevels;
- if (!legal_getteximage_target(ctx, target)) {
- _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(target=0x%x)", target);
- return GL_TRUE;
+ assert(texObj);
+
+ if (texObj->Target == 0) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "%s(invalid texture)", caller);
+ return true;
}
- assert(maxLevels != 0);
+ maxLevels = _mesa_max_texture_levels(ctx, target);
if (level < 0 || level >= maxLevels) {
- _mesa_error( ctx, GL_INVALID_VALUE, "glGetTexImage(level)" );
- return GL_TRUE;
+ _mesa_error(ctx, GL_INVALID_VALUE, "%s(level = %d)", caller, level);
+ return true;
}
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;
+ _mesa_error(ctx, err, "%s(format/type)", caller);
+ return true;
}
- texObj = _mesa_get_current_tex_object(ctx, target);
-
- if (!texObj) {
- _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(target)");
- return GL_TRUE;
+ if (dimensions_error_check(ctx, texObj, target, level,
+ xoffset, yoffset, zoffset,
+ width, height, depth, caller)) {
+ return true;
}
- texImage = _mesa_select_tex_image(ctx, texObj, target, level);
- if (!texImage) {
- /* non-existant texture image */
- return GL_TRUE;
+ if (pbo_error_check(ctx, target, width, height, depth,
+ format, type, bufSize, pixels, caller)) {
+ return true;
}
+ texImage = select_tex_image(texObj, target, level, zoffset);
+ assert(texImage);
+
+ /*
+ * Format and type checking has been moved up to GetnTexImage and
+ * GetTextureImage so that it happens before getting the texImage object.
+ */
+
baseFormat = _mesa_get_format_base_format(texImage->TexFormat);
-
+
/* Make sure the requested image format is compatible with the
* texture's format.
*/
if (_mesa_is_color_format(format)
&& !_mesa_is_color_format(baseFormat)) {
- _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
- return GL_TRUE;
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "%s(format mismatch)", caller);
+ return true;
}
else if (_mesa_is_depth_format(format)
&& !_mesa_is_depth_format(baseFormat)
&& !_mesa_is_depthstencil_format(baseFormat)) {
- _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
- return GL_TRUE;
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "%s(format mismatch)", caller);
+ return true;
+ }
+ else if (_mesa_is_stencil_format(format)
+ && !ctx->Extensions.ARB_texture_stencil8) {
+ _mesa_error(ctx, GL_INVALID_ENUM,
+ "%s(format=GL_STENCIL_INDEX)", caller);
+ return true;
+ }
+ else if (_mesa_is_stencil_format(format)
+ && !_mesa_is_depthstencil_format(baseFormat)
+ && !_mesa_is_stencil_format(baseFormat)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "%s(format mismatch)", caller);
+ return true;
}
else if (_mesa_is_ycbcr_format(format)
&& !_mesa_is_ycbcr_format(baseFormat)) {
- _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
- return GL_TRUE;
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "%s(format mismatch)", caller);
+ return true;
}
else if (_mesa_is_depthstencil_format(format)
&& !_mesa_is_depthstencil_format(baseFormat)) {
- _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
- return GL_TRUE;
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "%s(format mismatch)", caller);
+ return true;
}
- else if (_mesa_is_dudv_format(format)
- && !_mesa_is_dudv_format(baseFormat)) {
- _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
- return GL_TRUE;
+ else if (!_mesa_is_stencil_format(format) &&
+ _mesa_is_enum_format_integer(format) !=
+ _mesa_is_format_integer(texImage->TexFormat)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "%s(format mismatch)", caller);
+ return true;
}
- 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 access)");
- } else {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glGetnTexImageARB(out of bounds access:"
- " bufSize (%d) is too small)", clientMemSize);
- }
- return GL_TRUE;
+ return false;
+}
+
+
+/**
+ * Return the width, height and depth of a texture image.
+ * This function must be resilient to bad parameter values since
+ * this is called before full error checking.
+ */
+static void
+get_texture_image_dims(const struct gl_texture_object *texObj,
+ GLenum target, GLint level,
+ GLsizei *width, GLsizei *height, GLsizei *depth)
+{
+ const struct gl_texture_image *texImage = NULL;
+
+ if (level >= 0 && level < MAX_TEXTURE_LEVELS) {
+ texImage = _mesa_select_tex_image(texObj, target, level);
}
- 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,
- "glGetTexImage(PBO is mapped)");
- return GL_TRUE;
+ if (texImage) {
+ *width = texImage->Width;
+ *height = texImage->Height;
+ if (target == GL_TEXTURE_CUBE_MAP) {
+ *depth = 6;
+ }
+ else {
+ *depth = texImage->Depth;
}
}
-
- return GL_FALSE;
+ else {
+ *width = *height = *depth = 0;
+ }
}
-
/**
- * Get texture image. Called by glGetTexImage.
- *
- * \param target texture target.
+ * Common code for all (uncompressed) get-texture-image functions.
+ * \param texObj the texture object (should not be null)
+ * \param target user-provided target, or 0 for DSA
* \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.
+ * \param caller name of calling function
*/
-void GLAPIENTRY
-_mesa_GetnTexImageARB( GLenum target, GLint level, GLenum format,
- GLenum type, GLsizei bufSize, GLvoid *pixels )
+static void
+get_texture_image(struct gl_context *ctx,
+ struct gl_texture_object *texObj,
+ GLenum target, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLsizei width, GLsizei height, GLint depth,
+ GLenum format, GLenum type,
+ GLvoid *pixels, const char *caller)
{
- struct gl_texture_object *texObj;
struct gl_texture_image *texImage;
- GET_CURRENT_CONTEXT(ctx);
+ unsigned firstFace, numFaces, i;
+ GLint imageStride;
FLUSH_VERTICES(ctx, 0);
- if (getteximage_error_check(ctx, target, level, format, type,
- bufSize, pixels)) {
- return;
- }
+ texImage = select_tex_image(texObj, target, level, zoffset);
+ assert(texImage); /* should have been error checked already */
- if (!_mesa_is_bufferobj(ctx->Pack.BufferObj) && !pixels) {
- /* not an error, do nothing */
+ if (_mesa_is_zero_size_texture(texImage)) {
+ /* no image data to return */
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, "glGetTexImage(tex %u) format = %s, w=%d, h=%d,"
+ _mesa_debug(ctx, "%s(tex %u) format = %s, w=%d, h=%d,"
" dstFmt=0x%x, dstType=0x%x\n",
- texObj->Name,
+ caller, texObj->Name,
_mesa_get_format_name(texImage->TexFormat),
texImage->Width, texImage->Height,
format, type);
}
+ if (target == GL_TEXTURE_CUBE_MAP) {
+ /* Compute stride between cube faces */
+ imageStride = _mesa_image_image_stride(&ctx->Pack, width, height,
+ format, type);
+ firstFace = zoffset;
+ numFaces = depth;
+ zoffset = 0;
+ depth = 1;
+ }
+ else {
+ imageStride = 0;
+ firstFace = _mesa_tex_target_to_face(target);
+ numFaces = 1;
+ }
+
_mesa_lock_texture(ctx, texObj);
- {
- ctx->Driver.GetTexImage(ctx, format, type, pixels, texImage);
+
+ for (i = 0; i < numFaces; i++) {
+ texImage = texObj->Image[firstFace + i][level];
+ assert(texImage);
+
+ ctx->Driver.GetTexSubImage(ctx, xoffset, yoffset, zoffset,
+ width, height, depth,
+ format, type, pixels, texImage);
+
+ /* next cube face */
+ pixels = (GLubyte *) pixels + imageStride;
}
+
_mesa_unlock_texture(ctx, texObj);
}
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)
{
- _mesa_GetnTexImageARB(target, level, format, type, INT_MAX, pixels);
+ GET_CURRENT_CONTEXT(ctx);
+ static const char *caller = "glGetnTexImageARB";
+ GLsizei width, height, depth;
+ struct gl_texture_object *texObj;
+
+ if (!legal_getteximage_target(ctx, target, false)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "%s", caller);
+ return;
+ }
+
+ texObj = _mesa_get_current_tex_object(ctx, target);
+ assert(texObj);
+
+ get_texture_image_dims(texObj, target, level, &width, &height, &depth);
+
+ if (getteximage_error_check(ctx, texObj, target, level,
+ 0, 0, 0, width, height, depth,
+ format, type, bufSize, pixels, caller)) {
+ return;
+ }
+
+ get_texture_image(ctx, texObj, target, level,
+ 0, 0, 0, width, height, depth,
+ format, type, pixels, caller);
}
-/**
- * Do error checking for a glGetCompressedTexImage() call.
- * \return GL_TRUE if any error, GL_FALSE if no errors.
- */
-static GLboolean
-getcompressedteximage_error_check(struct gl_context *ctx, GLenum target,
- GLint level, GLsizei clientMemSize, GLvoid *img)
+void GLAPIENTRY
+_mesa_GetTexImage(GLenum target, GLint level, GLenum format, GLenum type,
+ GLvoid *pixels )
{
+ GET_CURRENT_CONTEXT(ctx);
+ static const char *caller = "glGetTexImage";
+ GLsizei width, height, depth;
struct gl_texture_object *texObj;
- struct gl_texture_image *texImage;
- const GLint maxLevels = _mesa_max_texture_levels(ctx, target);
- GLuint compressedSize;
- if (!legal_getteximage_target(ctx, target)) {
- _mesa_error(ctx, GL_INVALID_ENUM, "glGetCompressedTexImage(target=0x%x)",
- target);
- return GL_TRUE;
+ if (!legal_getteximage_target(ctx, target, false)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "%s", caller);
+ return;
}
- assert(maxLevels != 0);
- if (level < 0 || level >= maxLevels) {
- _mesa_error(ctx, GL_INVALID_VALUE,
- "glGetCompressedTexImageARB(bad level = %d)", level);
- return GL_TRUE;
+ texObj = _mesa_get_current_tex_object(ctx, target);
+ assert(texObj);
+
+ get_texture_image_dims(texObj, target, level, &width, &height, &depth);
+
+ if (getteximage_error_check(ctx, texObj, target, level,
+ 0, 0, 0, width, height, depth,
+ format, type, INT_MAX, pixels, caller)) {
+ return;
}
- texObj = _mesa_get_current_tex_object(ctx, target);
+ get_texture_image(ctx, texObj, target, level,
+ 0, 0, 0, width, height, depth,
+ format, type, pixels, caller);
+}
+
+
+void GLAPIENTRY
+_mesa_GetTextureImage(GLuint texture, GLint level, GLenum format, GLenum type,
+ GLsizei bufSize, GLvoid *pixels)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ GLsizei width, height, depth;
+ static const char *caller = "glGetTextureImage";
+ struct gl_texture_object *texObj =
+ _mesa_lookup_texture_err(ctx, texture, caller);
+
if (!texObj) {
- _mesa_error(ctx, GL_INVALID_ENUM, "glGetCompressedTexImageARB(target)");
- return GL_TRUE;
+ return;
}
- texImage = _mesa_select_tex_image(ctx, texObj, target, level);
+ if (!legal_getteximage_target(ctx, texObj->Target, true)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "%s", caller);
+ return;
+ }
- if (!texImage) {
- /* probably invalid mipmap level */
+ get_texture_image_dims(texObj, texObj->Target, level,
+ &width, &height, &depth);
+
+ if (getteximage_error_check(ctx, texObj, texObj->Target, level,
+ 0, 0, 0, width, height, depth,
+ format, type, bufSize, pixels, caller)) {
+ return;
+ }
+
+ get_texture_image(ctx, texObj, texObj->Target, level,
+ 0, 0, 0, width, height, depth,
+ format, type, pixels, caller);
+}
+
+
+void GLAPIENTRY
+_mesa_GetTextureSubImage(GLuint texture, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLsizei width, GLsizei height, GLsizei depth,
+ GLenum format, GLenum type, GLsizei bufSize,
+ void *pixels)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ static const char *caller = "glGetTextureSubImage";
+ struct gl_texture_object *texObj =
+ _mesa_lookup_texture_err(ctx, texture, caller);
+
+ if (!texObj) {
+ return;
+ }
+
+ if (!legal_getteximage_target(ctx, texObj->Target, true)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "%s(buffer/multisample texture)", caller);
+ return;
+ }
+
+ if (getteximage_error_check(ctx, texObj, texObj->Target, level,
+ xoffset, yoffset, zoffset, width, height, depth,
+ format, type, bufSize, pixels, caller)) {
+ return;
+ }
+
+ get_texture_image(ctx, texObj, texObj->Target, level,
+ xoffset, yoffset, zoffset, width, height, depth,
+ format, type, pixels, caller);
+}
+
+
+
+/**
+ * Compute the number of bytes which will be written when retrieving
+ * a sub-region of a compressed texture.
+ */
+static GLsizei
+packed_compressed_size(GLuint dimensions, mesa_format format,
+ GLsizei width, GLsizei height, GLsizei depth,
+ const struct gl_pixelstore_attrib *packing)
+{
+ struct compressed_pixelstore st;
+ GLsizei totalBytes;
+
+ _mesa_compute_compressed_pixelstore(dimensions, format,
+ width, height, depth,
+ packing, &st);
+ totalBytes =
+ (st.CopySlices - 1) * st.TotalRowsPerSlice * st.TotalBytesPerRow +
+ st.SkipBytes +
+ (st.CopyRowsPerSlice - 1) * st.TotalBytesPerRow +
+ st.CopyBytesPerRow;
+
+ return totalBytes;
+}
+
+
+/**
+ * Do error checking for getting compressed texture images.
+ * \return true if any error, false if no errors.
+ */
+static bool
+getcompressedteximage_error_check(struct gl_context *ctx,
+ struct gl_texture_object *texObj,
+ GLenum target, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLsizei width, GLsizei height, GLsizei depth,
+ GLsizei bufSize, GLvoid *pixels,
+ const char *caller)
+{
+ struct gl_texture_image *texImage;
+ GLint maxLevels;
+ GLsizei totalBytes;
+ GLuint dimensions;
+
+ assert(texObj);
+
+ if (texObj->Target == 0) {
+ _mesa_error(ctx, GL_INVALID_OPERATION, "%s(invalid texture)", caller);
+ return true;
+ }
+
+ maxLevels = _mesa_max_texture_levels(ctx, target);
+ if (level < 0 || level >= maxLevels) {
_mesa_error(ctx, GL_INVALID_VALUE,
- "glGetCompressedTexImageARB(level)");
- return GL_TRUE;
+ "%s(bad level = %d)", caller, level);
+ return true;
+ }
+
+ if (dimensions_error_check(ctx, texObj, target, level,
+ xoffset, yoffset, zoffset,
+ width, height, depth, caller)) {
+ return true;
}
+ texImage = select_tex_image(texObj, target, level, zoffset);
+ assert(texImage);
+
if (!_mesa_is_format_compressed(texImage->TexFormat)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
- "glGetCompressedTexImageARB(texture is not compressed)");
- return GL_TRUE;
+ "%s(texture is not compressed)", caller);
+ return true;
}
- compressedSize = _mesa_format_image_size(texImage->TexFormat,
- texImage->Width,
- texImage->Height,
- texImage->Depth);
+ /* Check for invalid pixel storage modes */
+ dimensions = _mesa_get_texture_dimensions(texObj->Target);
+ if (!_mesa_compressed_pixel_storage_error_check(ctx, dimensions,
+ &ctx->Pack,
+ caller)) {
+ return true;
+ }
- if (!_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
- /* do bounds checking on writing to client memory */
- if (clientMemSize < (GLsizei) compressedSize) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "glGetnCompressedTexImageARB(out of bounds access:"
- " bufSize (%d) is too small)", clientMemSize);
- return GL_TRUE;
- }
- } else {
+ /* Compute number of bytes that may be touched in the dest buffer */
+ totalBytes = packed_compressed_size(dimensions, texImage->TexFormat,
+ width, height, depth,
+ &ctx->Pack);
+
+ /* Do dest buffer bounds checking */
+ if (_mesa_is_bufferobj(ctx->Pack.BufferObj)) {
/* do bounds checking on PBO write */
- if ((const GLubyte *) img + compressedSize >
- (const GLubyte *) ctx->Pack.BufferObj->Size) {
+ if ((GLubyte *) pixels + totalBytes >
+ (GLubyte *) ctx->Pack.BufferObj->Size) {
_mesa_error(ctx, GL_INVALID_OPERATION,
- "glGetCompressedTexImage(out of bounds PBO access)");
- return GL_TRUE;
+ "%s(out of bounds PBO access)", caller);
+ return true;
}
/* 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, "%s(PBO is mapped)", caller);
+ return true;
+ }
+ }
+ else {
+ /* do bounds checking on writing to client memory */
+ if (totalBytes > bufSize) {
_mesa_error(ctx, GL_INVALID_OPERATION,
- "glGetCompressedTexImage(PBO is mapped)");
- return GL_TRUE;
+ "%s(out of bounds access: bufSize (%d) is too small)",
+ caller, bufSize);
+ return true;
}
}
- return GL_FALSE;
+ if (!_mesa_is_bufferobj(ctx->Pack.BufferObj) && !pixels) {
+ /* not an error, but do nothing */
+ return true;
+ }
+
+ return false;
}
-void GLAPIENTRY
-_mesa_GetnCompressedTexImageARB(GLenum target, GLint level, GLsizei bufSize,
- GLvoid *img)
+/**
+ * Common helper for all glGetCompressed-teximage functions.
+ */
+static void
+get_compressed_texture_image(struct gl_context *ctx,
+ struct gl_texture_object *texObj,
+ GLenum target, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLsizei width, GLsizei height, GLint depth,
+ GLvoid *pixels,
+ const char *caller)
{
- struct gl_texture_object *texObj;
struct gl_texture_image *texImage;
- GET_CURRENT_CONTEXT(ctx);
+ unsigned firstFace, numFaces, i, imageStride;
FLUSH_VERTICES(ctx, 0);
- if (getcompressedteximage_error_check(ctx, target, level, bufSize, img)) {
- return;
- }
-
- if (!_mesa_is_bufferobj(ctx->Pack.BufferObj) && !img) {
- /* not an error, do nothing */
- return;
- }
-
- texObj = _mesa_get_current_tex_object(ctx, target);
- texImage = _mesa_select_tex_image(ctx, texObj, target, level);
+ texImage = select_tex_image(texObj, target, level, zoffset);
+ assert(texImage); /* should have been error checked already */
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",
- texObj->Name,
+ "%s(tex %u) format = %s, w=%d, h=%d\n",
+ caller, texObj->Name,
_mesa_get_format_name(texImage->TexFormat),
texImage->Width, texImage->Height);
}
+ if (target == GL_TEXTURE_CUBE_MAP) {
+ struct compressed_pixelstore store;
+
+ /* Compute image stride between cube faces */
+ _mesa_compute_compressed_pixelstore(2, texImage->TexFormat,
+ width, height, depth,
+ &ctx->Pack, &store);
+ imageStride = store.TotalBytesPerRow * store.TotalRowsPerSlice;
+
+ firstFace = zoffset;
+ numFaces = depth;
+ zoffset = 0;
+ depth = 1;
+ }
+ else {
+ imageStride = 0;
+ firstFace = _mesa_tex_target_to_face(target);
+ numFaces = 1;
+ }
+
_mesa_lock_texture(ctx, texObj);
- {
- ctx->Driver.GetCompressedTexImage(ctx, texImage, img);
+
+ for (i = 0; i < numFaces; i++) {
+ texImage = texObj->Image[firstFace + i][level];
+ assert(texImage);
+
+ ctx->Driver.GetCompressedTexSubImage(ctx, texImage,
+ xoffset, yoffset, zoffset,
+ width, height, depth, pixels);
+
+ /* next cube face */
+ pixels = (GLubyte *) pixels + imageStride;
}
+
_mesa_unlock_texture(ctx, texObj);
}
+
void GLAPIENTRY
-_mesa_GetCompressedTexImage(GLenum target, GLint level, GLvoid *img)
+_mesa_GetnCompressedTexImageARB(GLenum target, GLint level, GLsizei bufSize,
+ GLvoid *pixels)
{
- _mesa_GetnCompressedTexImageARB(target, level, INT_MAX, img);
+ GET_CURRENT_CONTEXT(ctx);
+ static const char *caller = "glGetnCompressedTexImageARB";
+ GLsizei width, height, depth;
+ struct gl_texture_object *texObj;
+
+ if (!legal_getteximage_target(ctx, target, false)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "%s", caller);
+ return;
+ }
+
+ texObj = _mesa_get_current_tex_object(ctx, target);
+ assert(texObj);
+
+ get_texture_image_dims(texObj, target, level, &width, &height, &depth);
+
+ if (getcompressedteximage_error_check(ctx, texObj, target, level,
+ 0, 0, 0, width, height, depth,
+ INT_MAX, pixels, caller)) {
+ return;
+ }
+
+ get_compressed_texture_image(ctx, texObj, target, level,
+ 0, 0, 0, width, height, depth,
+ pixels, caller);
+}
+
+
+void GLAPIENTRY
+_mesa_GetCompressedTexImage(GLenum target, GLint level, GLvoid *pixels)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ static const char *caller = "glGetCompressedTexImage";
+ GLsizei width, height, depth;
+ struct gl_texture_object *texObj;
+
+ if (!legal_getteximage_target(ctx, target, false)) {
+ _mesa_error(ctx, GL_INVALID_ENUM, "%s", caller);
+ return;
+ }
+
+ texObj = _mesa_get_current_tex_object(ctx, target);
+ assert(texObj);
+
+ get_texture_image_dims(texObj, target, level,
+ &width, &height, &depth);
+
+ if (getcompressedteximage_error_check(ctx, texObj, target, level,
+ 0, 0, 0, width, height, depth,
+ INT_MAX, pixels, caller)) {
+ return;
+ }
+
+ get_compressed_texture_image(ctx, texObj, target, level,
+ 0, 0, 0, width, height, depth,
+ pixels, caller);
+}
+
+
+void GLAPIENTRY
+_mesa_GetCompressedTextureImage(GLuint texture, GLint level,
+ GLsizei bufSize, GLvoid *pixels)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ static const char *caller = "glGetCompressedTextureImage";
+ GLsizei width, height, depth;
+ struct gl_texture_object *texObj =
+ _mesa_lookup_texture_err(ctx, texture, caller);
+
+ if (!texObj) {
+ return;
+ }
+
+ get_texture_image_dims(texObj, texObj->Target, level,
+ &width, &height, &depth);
+
+ if (getcompressedteximage_error_check(ctx, texObj, texObj->Target, level,
+ 0, 0, 0, width, height, depth,
+ bufSize, pixels, caller)) {
+ return;
+ }
+
+ get_compressed_texture_image(ctx, texObj, texObj->Target, level,
+ 0, 0, 0, width, height, depth,
+ pixels, caller);
+}
+
+
+void APIENTRY
+_mesa_GetCompressedTextureSubImage(GLuint texture, GLint level,
+ GLint xoffset, GLint yoffset,
+ GLint zoffset, GLsizei width,
+ GLsizei height, GLsizei depth,
+ GLsizei bufSize, void *pixels)
+{
+ GET_CURRENT_CONTEXT(ctx);
+ static const char *caller = "glGetCompressedTextureImage";
+ struct gl_texture_object *texObj;
+
+ texObj = _mesa_lookup_texture_err(ctx, texture, caller);
+ if (!texObj) {
+ return;
+ }
+
+ if (getcompressedteximage_error_check(ctx, texObj, texObj->Target, level,
+ xoffset, yoffset, zoffset,
+ width, height, depth,
+ bufSize, pixels, caller)) {
+ return;
+ }
+
+ get_compressed_texture_image(ctx, texObj, texObj->Target, level,
+ xoffset, yoffset, zoffset,
+ width, height, depth,
+ pixels, caller);
}
projects / mesa.git / blobdiff