| /* |
| * Mesa 3-D graphics library |
| * |
| * Copyright (C) 2014 Intel Corporation. All Rights Reserved. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included |
| * in all copies or substantial portions of the Software. |
| * |
| * 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 |
| * 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. |
| * |
| * Authors: |
| * Jason Ekstrand <jason.ekstrand@intel.com> |
| */ |
| |
| #include "context.h" |
| #include "glheader.h" |
| #include "errors.h" |
| #include "enums.h" |
| #include "copyimage.h" |
| #include "teximage.h" |
| #include "texobj.h" |
| #include "fbobject.h" |
| #include "textureview.h" |
| #include "glformats.h" |
| |
| enum mesa_block_class { |
| BLOCK_CLASS_128_BITS, |
| BLOCK_CLASS_64_BITS |
| }; |
| |
| /** |
| * Prepare the source or destination resource. This involves error |
| * checking and returning the relevant gl_texture_image or gl_renderbuffer. |
| * Note that one of the resulting tex_image or renderbuffer pointers will be |
| * NULL and the other will be non-null. |
| * |
| * \param name the texture or renderbuffer name |
| * \param target One of GL_TEXTURE_x target or GL_RENDERBUFFER |
| * \param level mipmap level |
| * \param z src or dest Z |
| * \param depth number of slices/faces/layers to copy |
| * \param tex_image returns a pointer to a texture image |
| * \param renderbuffer returns a pointer to a renderbuffer |
| * \return true if success, false if error |
| */ |
| static bool |
| prepare_target(struct gl_context *ctx, GLuint name, GLenum target, |
| int level, int z, int depth, |
| struct gl_texture_image **tex_image, |
| struct gl_renderbuffer **renderbuffer, |
| mesa_format *format, |
| GLenum *internalFormat, |
| GLuint *width, |
| GLuint *height, |
| GLuint *num_samples, |
| const char *dbg_prefix) |
| { |
| if (name == 0) { |
| _mesa_error(ctx, GL_INVALID_VALUE, |
| "glCopyImageSubData(%sName = %d)", dbg_prefix, name); |
| return false; |
| } |
| |
| /* |
| * INVALID_ENUM is generated |
| * * if either <srcTarget> or <dstTarget> |
| * - is not RENDERBUFFER or a valid non-proxy texture target |
| * - is TEXTURE_BUFFER, or |
| * - is one of the cubemap face selectors described in table 3.17, |
| */ |
| switch (target) { |
| case GL_RENDERBUFFER: |
| /* Not a texture target, but valid */ |
| case GL_TEXTURE_1D: |
| case GL_TEXTURE_1D_ARRAY: |
| case GL_TEXTURE_2D: |
| case GL_TEXTURE_3D: |
| case GL_TEXTURE_CUBE_MAP: |
| case GL_TEXTURE_RECTANGLE: |
| case GL_TEXTURE_2D_ARRAY: |
| case GL_TEXTURE_CUBE_MAP_ARRAY: |
| case GL_TEXTURE_2D_MULTISAMPLE: |
| case GL_TEXTURE_2D_MULTISAMPLE_ARRAY: |
| /* These are all valid */ |
| break; |
| case GL_TEXTURE_EXTERNAL_OES: |
| /* Only exists in ES */ |
| case GL_TEXTURE_BUFFER: |
| default: |
| _mesa_error(ctx, GL_INVALID_ENUM, |
| "glCopyImageSubData(%sTarget = %s)", dbg_prefix, |
| _mesa_enum_to_string(target)); |
| return false; |
| } |
| |
| if (target == GL_RENDERBUFFER) { |
| struct gl_renderbuffer *rb = _mesa_lookup_renderbuffer(ctx, name); |
| |
| if (!rb) { |
| _mesa_error(ctx, GL_INVALID_VALUE, |
| "glCopyImageSubData(%sName = %u)", dbg_prefix, name); |
| return false; |
| } |
| |
| if (!rb->Name) { |
| _mesa_error(ctx, GL_INVALID_OPERATION, |
| "glCopyImageSubData(%sName incomplete)", dbg_prefix); |
| return false; |
| } |
| |
| if (level != 0) { |
| _mesa_error(ctx, GL_INVALID_VALUE, |
| "glCopyImageSubData(%sLevel = %u)", dbg_prefix, level); |
| return false; |
| } |
| |
| *renderbuffer = rb; |
| *format = rb->Format; |
| *internalFormat = rb->InternalFormat; |
| *width = rb->Width; |
| *height = rb->Height; |
| *num_samples = rb->NumSamples; |
| *tex_image = NULL; |
| } else { |
| struct gl_texture_object *texObj = _mesa_lookup_texture(ctx, name); |
| |
| if (!texObj) { |
| /* |
| * From GL_ARB_copy_image specification: |
| * "INVALID_VALUE is generated if either <srcName> or <dstName> does |
| * not correspond to a valid renderbuffer or texture object according |
| * to the corresponding target parameter." |
| */ |
| _mesa_error(ctx, GL_INVALID_VALUE, |
| "glCopyImageSubData(%sName = %u)", dbg_prefix, name); |
| return false; |
| } |
| |
| _mesa_test_texobj_completeness(ctx, texObj); |
| if (!texObj->_BaseComplete || |
| (level != 0 && !texObj->_MipmapComplete)) { |
| _mesa_error(ctx, GL_INVALID_OPERATION, |
| "glCopyImageSubData(%sName incomplete)", dbg_prefix); |
| return false; |
| } |
| |
| /* Note that target will not be a cube face name */ |
| if (texObj->Target != target) { |
| /* |
| * From GL_ARB_copy_image_specification: |
| * "INVALID_ENUM is generated if the target does not match the type |
| * of the object." |
| */ |
| _mesa_error(ctx, GL_INVALID_ENUM, |
| "glCopyImageSubData(%sTarget = %s)", dbg_prefix, |
| _mesa_enum_to_string(target)); |
| return false; |
| } |
| |
| if (level < 0 || level >= MAX_TEXTURE_LEVELS) { |
| _mesa_error(ctx, GL_INVALID_VALUE, |
| "glCopyImageSubData(%sLevel = %d)", dbg_prefix, level); |
| return false; |
| } |
| |
| if (target == GL_TEXTURE_CUBE_MAP) { |
| int i; |
| |
| assert(z < MAX_FACES); /* should have been caught earlier */ |
| |
| /* make sure all the cube faces are present */ |
| for (i = 0; i < depth; i++) { |
| if (!texObj->Image[z+i][level]) { |
| /* missing cube face */ |
| _mesa_error(ctx, GL_INVALID_VALUE, |
| "glCopyImageSubData(missing cube face)"); |
| return false; |
| } |
| } |
| |
| *tex_image = texObj->Image[z][level]; |
| } |
| else { |
| *tex_image = _mesa_select_tex_image(texObj, target, level); |
| } |
| |
| if (!*tex_image) { |
| _mesa_error(ctx, GL_INVALID_VALUE, |
| "glCopyImageSubData(%sLevel = %u)", dbg_prefix, level); |
| return false; |
| } |
| |
| *renderbuffer = NULL; |
| *format = (*tex_image)->TexFormat; |
| *internalFormat = (*tex_image)->InternalFormat; |
| *width = (*tex_image)->Width; |
| *height = (*tex_image)->Height; |
| *num_samples = (*tex_image)->NumSamples; |
| } |
| |
| return true; |
| } |
| |
| |
| /** |
| * Check that the x,y,z,width,height,region is within the texture image |
| * dimensions. |
| * \return true if bounds OK, false if regions is out of bounds |
| */ |
| static bool |
| check_region_bounds(struct gl_context *ctx, |
| GLenum target, |
| const struct gl_texture_image *tex_image, |
| const struct gl_renderbuffer *renderbuffer, |
| int x, int y, int z, int width, int height, int depth, |
| const char *dbg_prefix) |
| { |
| int surfWidth, surfHeight, surfDepth; |
| |
| if (width < 0 || height < 0 || depth < 0) { |
| _mesa_error(ctx, GL_INVALID_VALUE, |
| "glCopyImageSubData(%sWidth, %sHeight, or %sDepth is negative)", |
| dbg_prefix, dbg_prefix, dbg_prefix); |
| return false; |
| } |
| |
| if (x < 0 || y < 0 || z < 0) { |
| _mesa_error(ctx, GL_INVALID_VALUE, |
| "glCopyImageSubData(%sX, %sY, or %sZ is negative)", |
| dbg_prefix, dbg_prefix, dbg_prefix); |
| return false; |
| } |
| |
| /* Check X direction */ |
| if (target == GL_RENDERBUFFER) { |
| surfWidth = renderbuffer->Width; |
| } |
| else { |
| surfWidth = tex_image->Width; |
| } |
| |
| if (x + width > surfWidth) { |
| _mesa_error(ctx, GL_INVALID_VALUE, |
| "glCopyImageSubData(%sX or %sWidth exceeds image bounds)", |
| dbg_prefix, dbg_prefix); |
| return false; |
| } |
| |
| /* Check Y direction */ |
| switch (target) { |
| case GL_RENDERBUFFER: |
| surfHeight = renderbuffer->Height; |
| break; |
| case GL_TEXTURE_1D: |
| case GL_TEXTURE_1D_ARRAY: |
| surfHeight = 1; |
| break; |
| default: |
| surfHeight = tex_image->Height; |
| } |
| |
| if (y + height > surfHeight) { |
| _mesa_error(ctx, GL_INVALID_VALUE, |
| "glCopyImageSubData(%sY or %sHeight exceeds image bounds)", |
| dbg_prefix, dbg_prefix); |
| return false; |
| } |
| |
| /* Check Z direction */ |
| switch (target) { |
| case GL_RENDERBUFFER: |
| case GL_TEXTURE_1D: |
| case GL_TEXTURE_2D: |
| case GL_TEXTURE_2D_MULTISAMPLE: |
| case GL_TEXTURE_RECTANGLE: |
| surfDepth = 1; |
| break; |
| case GL_TEXTURE_CUBE_MAP: |
| surfDepth = 6; |
| break; |
| case GL_TEXTURE_1D_ARRAY: |
| surfDepth = tex_image->Height; |
| break; |
| default: |
| surfDepth = tex_image->Depth; |
| } |
| |
| if (z < 0 || z + depth > surfDepth) { |
| _mesa_error(ctx, GL_INVALID_VALUE, |
| "glCopyImageSubData(%sZ or %sDepth exceeds image bounds)", |
| dbg_prefix, dbg_prefix); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| static bool |
| compressed_format_compatible(const struct gl_context *ctx, |
| GLenum compressedFormat, GLenum otherFormat) |
| { |
| enum mesa_block_class compressedClass, otherClass; |
| |
| /* Two view-incompatible compressed formats are never compatible. */ |
| if (_mesa_is_compressed_format(ctx, otherFormat)) { |
| return false; |
| } |
| |
| /* |
| * From ARB_copy_image spec: |
| * Table 4.X.1 (Compatible internal formats for copying between |
| * compressed and uncompressed internal formats) |
| * --------------------------------------------------------------------- |
| * | Texel / | Uncompressed | | |
| * | Block | internal format | Compressed internal format | |
| * | size | | | |
| * --------------------------------------------------------------------- |
| * | 128-bit | RGBA32UI, | COMPRESSED_RGBA_S3TC_DXT3_EXT, | |
| * | | RGBA32I, | COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT,| |
| * | | RGBA32F | COMPRESSED_RGBA_S3TC_DXT5_EXT, | |
| * | | | COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT,| |
| * | | | COMPRESSED_RG_RGTC2, | |
| * | | | COMPRESSED_SIGNED_RG_RGTC2, | |
| * | | | COMPRESSED_RGBA_BPTC_UNORM, | |
| * | | | COMPRESSED_SRGB_ALPHA_BPTC_UNORM, | |
| * | | | COMPRESSED_RGB_BPTC_SIGNED_FLOAT, | |
| * | | | COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT | |
| * --------------------------------------------------------------------- |
| * | 64-bit | RGBA16F, RG32F, | COMPRESSED_RGB_S3TC_DXT1_EXT, | |
| * | | RGBA16UI, RG32UI, | COMPRESSED_SRGB_S3TC_DXT1_EXT, | |
| * | | RGBA16I, RG32I, | COMPRESSED_RGBA_S3TC_DXT1_EXT, | |
| * | | RGBA16, | COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT,| |
| * | | RGBA16_SNORM | COMPRESSED_RED_RGTC1, | |
| * | | | COMPRESSED_SIGNED_RED_RGTC1 | |
| * --------------------------------------------------------------------- |
| */ |
| |
| switch (compressedFormat) { |
| case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT: |
| case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT: |
| case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT: |
| case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT: |
| case GL_COMPRESSED_RG_RGTC2: |
| case GL_COMPRESSED_SIGNED_RG_RGTC2: |
| case GL_COMPRESSED_RGBA_BPTC_UNORM: |
| case GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM: |
| case GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT: |
| case GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT: |
| compressedClass = BLOCK_CLASS_128_BITS; |
| break; |
| case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: |
| case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT: |
| case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: |
| case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT: |
| case GL_COMPRESSED_RED_RGTC1: |
| case GL_COMPRESSED_SIGNED_RED_RGTC1: |
| compressedClass = BLOCK_CLASS_64_BITS; |
| break; |
| case GL_COMPRESSED_RGBA8_ETC2_EAC: |
| case GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC: |
| case GL_COMPRESSED_RG11_EAC: |
| case GL_COMPRESSED_SIGNED_RG11_EAC: |
| if (_mesa_is_gles(ctx)) |
| compressedClass = BLOCK_CLASS_128_BITS; |
| else |
| return false; |
| break; |
| case GL_COMPRESSED_RGB8_ETC2: |
| case GL_COMPRESSED_SRGB8_ETC2: |
| case GL_COMPRESSED_R11_EAC: |
| case GL_COMPRESSED_SIGNED_R11_EAC: |
| case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2: |
| case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2: |
| if (_mesa_is_gles(ctx)) |
| compressedClass = BLOCK_CLASS_64_BITS; |
| else |
| return false; |
| break; |
| default: |
| if (_mesa_is_gles(ctx) && _mesa_is_astc_format(compressedFormat)) |
| compressedClass = BLOCK_CLASS_128_BITS; |
| else |
| return false; |
| break; |
| } |
| |
| switch (otherFormat) { |
| case GL_RGBA32UI: |
| case GL_RGBA32I: |
| case GL_RGBA32F: |
| otherClass = BLOCK_CLASS_128_BITS; |
| break; |
| case GL_RGBA16F: |
| case GL_RG32F: |
| case GL_RGBA16UI: |
| case GL_RG32UI: |
| case GL_RGBA16I: |
| case GL_RG32I: |
| case GL_RGBA16: |
| case GL_RGBA16_SNORM: |
| otherClass = BLOCK_CLASS_64_BITS; |
| break; |
| default: |
| return false; |
| } |
| |
| return compressedClass == otherClass; |
| } |
| |
| static bool |
| copy_format_compatible(const struct gl_context *ctx, |
| GLenum srcFormat, GLenum dstFormat) |
| { |
| /* |
| * From ARB_copy_image spec: |
| * For the purposes of CopyImageSubData, two internal formats |
| * are considered compatible if any of the following conditions are |
| * met: |
| * * the formats are the same, |
| * * the formats are considered compatible according to the |
| * compatibility rules used for texture views as defined in |
| * section 3.9.X. In particular, if both internal formats are listed |
| * in the same entry of Table 3.X.2, they are considered compatible, or |
| * * one format is compressed and the other is uncompressed and |
| * Table 4.X.1 lists the two formats in the same row. |
| */ |
| |
| if (_mesa_texture_view_compatible_format(ctx, srcFormat, dstFormat)) { |
| /* Also checks if formats are equal. */ |
| return true; |
| } else if (_mesa_is_compressed_format(ctx, srcFormat)) { |
| return compressed_format_compatible(ctx, srcFormat, dstFormat); |
| } else if (_mesa_is_compressed_format(ctx, dstFormat)) { |
| return compressed_format_compatible(ctx, dstFormat, srcFormat); |
| } |
| |
| return false; |
| } |
| |
| void GLAPIENTRY |
| _mesa_CopyImageSubData(GLuint srcName, GLenum srcTarget, GLint srcLevel, |
| GLint srcX, GLint srcY, GLint srcZ, |
| GLuint dstName, GLenum dstTarget, GLint dstLevel, |
| GLint dstX, GLint dstY, GLint dstZ, |
| GLsizei srcWidth, GLsizei srcHeight, GLsizei srcDepth) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| struct gl_texture_image *srcTexImage, *dstTexImage; |
| struct gl_renderbuffer *srcRenderbuffer, *dstRenderbuffer; |
| mesa_format srcFormat, dstFormat; |
| GLenum srcIntFormat, dstIntFormat; |
| GLuint src_w, src_h, dst_w, dst_h; |
| GLuint src_bw, src_bh, dst_bw, dst_bh; |
| GLuint src_num_samples, dst_num_samples; |
| int dstWidth, dstHeight, dstDepth; |
| int i; |
| |
| if (MESA_VERBOSE & VERBOSE_API) |
| _mesa_debug(ctx, "glCopyImageSubData(%u, %s, %d, %d, %d, %d, " |
| "%u, %s, %d, %d, %d, %d, " |
| "%d, %d, %d)\n", |
| srcName, _mesa_enum_to_string(srcTarget), srcLevel, |
| srcX, srcY, srcZ, |
| dstName, _mesa_enum_to_string(dstTarget), dstLevel, |
| dstX, dstY, dstZ, |
| srcWidth, srcHeight, srcDepth); |
| |
| if (!ctx->Extensions.ARB_copy_image) { |
| _mesa_error(ctx, GL_INVALID_OPERATION, |
| "glCopyImageSubData(extension not available)"); |
| return; |
| } |
| |
| if (!prepare_target(ctx, srcName, srcTarget, srcLevel, srcZ, srcDepth, |
| &srcTexImage, &srcRenderbuffer, &srcFormat, |
| &srcIntFormat, &src_w, &src_h, &src_num_samples, "src")) |
| return; |
| |
| if (!prepare_target(ctx, dstName, dstTarget, dstLevel, dstZ, srcDepth, |
| &dstTexImage, &dstRenderbuffer, &dstFormat, |
| &dstIntFormat, &dst_w, &dst_h, &dst_num_samples, "dst")) |
| return; |
| |
| _mesa_get_format_block_size(srcFormat, &src_bw, &src_bh); |
| |
| /* Section 18.3.2 (Copying Between Images) of the OpenGL 4.5 Core Profile |
| * spec says: |
| * |
| * An INVALID_VALUE error is generated if the dimensions of either |
| * subregion exceeds the boundaries of the corresponding image object, |
| * or if the image format is compressed and the dimensions of the |
| * subregion fail to meet the alignment constraints of the format. |
| * |
| * and Section 8.7 (Compressed Texture Images) says: |
| * |
| * An INVALID_OPERATION error is generated if any of the following |
| * conditions occurs: |
| * |
| * * width is not a multiple of four, and width + xoffset is not |
| * equal to the value of TEXTURE_WIDTH. |
| * * height is not a multiple of four, and height + yoffset is not |
| * equal to the value of TEXTURE_HEIGHT. |
| * |
| * so we take that to mean that you can copy the "last" block of a |
| * compressed texture image even if it's smaller than the minimum block |
| * dimensions. |
| */ |
| if ((srcX % src_bw != 0) || (srcY % src_bh != 0) || |
| (srcWidth % src_bw != 0 && (srcX + srcWidth) != src_w) || |
| (srcHeight % src_bh != 0 && (srcY + srcHeight) != src_h)) { |
| _mesa_error(ctx, GL_INVALID_VALUE, |
| "glCopyImageSubData(unaligned src rectangle)"); |
| return; |
| } |
| |
| _mesa_get_format_block_size(dstFormat, &dst_bw, &dst_bh); |
| if ((dstX % dst_bw != 0) || (dstY % dst_bh != 0)) { |
| _mesa_error(ctx, GL_INVALID_VALUE, |
| "glCopyImageSubData(unaligned dst rectangle)"); |
| return; |
| } |
| |
| /* From the GL_ARB_copy_image spec: |
| * |
| * "The dimensions are always specified in texels, even for compressed |
| * texture formats. But it should be noted that if only one of the |
| * source and destination textures is compressed then the number of |
| * texels touched in the compressed image will be a factor of the |
| * block size larger than in the uncompressed image." |
| * |
| * So, if copying from compressed to uncompressed, the dest region is |
| * shrunk by the src block size factor. If copying from uncompressed |
| * to compressed, the dest region is grown by the dest block size factor. |
| * Note that we're passed the _source_ width, height, depth and those |
| * dimensions are never changed. |
| */ |
| dstWidth = srcWidth * dst_bw / src_bw; |
| dstHeight = srcHeight * dst_bh / src_bh; |
| dstDepth = srcDepth; |
| |
| if (!check_region_bounds(ctx, srcTarget, srcTexImage, srcRenderbuffer, |
| srcX, srcY, srcZ, srcWidth, srcHeight, srcDepth, |
| "src")) |
| return; |
| |
| if (!check_region_bounds(ctx, dstTarget, dstTexImage, dstRenderbuffer, |
| dstX, dstY, dstZ, dstWidth, dstHeight, dstDepth, |
| "dst")) |
| return; |
| |
| /* Section 18.3.2 (Copying Between Images) of the OpenGL 4.5 Core Profile |
| * spec says: |
| * |
| * An INVALID_OPERATION error is generated if either object is a texture |
| * and the texture is not complete, if the source and destination internal |
| * formats are not compatible, or if the number of samples do not match. |
| */ |
| if (!copy_format_compatible(ctx, srcIntFormat, dstIntFormat)) { |
| _mesa_error(ctx, GL_INVALID_OPERATION, |
| "glCopyImageSubData(internalFormat mismatch)"); |
| return; |
| } |
| |
| if (src_num_samples != dst_num_samples) { |
| _mesa_error(ctx, GL_INVALID_OPERATION, |
| "glCopyImageSubData(number of samples mismatch)"); |
| return; |
| } |
| |
| /* loop over 2D slices/faces/layers */ |
| for (i = 0; i < srcDepth; ++i) { |
| int newSrcZ = srcZ + i; |
| int newDstZ = dstZ + i; |
| |
| if (srcTexImage && |
| srcTexImage->TexObject->Target == GL_TEXTURE_CUBE_MAP) { |
| /* need to update srcTexImage pointer for the cube face */ |
| assert(srcZ + i < MAX_FACES); |
| srcTexImage = srcTexImage->TexObject->Image[srcZ + i][srcLevel]; |
| assert(srcTexImage); |
| newSrcZ = 0; |
| } |
| |
| if (dstTexImage && |
| dstTexImage->TexObject->Target == GL_TEXTURE_CUBE_MAP) { |
| /* need to update dstTexImage pointer for the cube face */ |
| assert(dstZ + i < MAX_FACES); |
| dstTexImage = dstTexImage->TexObject->Image[dstZ + i][dstLevel]; |
| assert(dstTexImage); |
| newDstZ = 0; |
| } |
| |
| ctx->Driver.CopyImageSubData(ctx, |
| srcTexImage, srcRenderbuffer, |
| srcX, srcY, newSrcZ, |
| dstTexImage, dstRenderbuffer, |
| dstX, dstY, newDstZ, |
| srcWidth, srcHeight); |
| } |
| } |
