diff options
Diffstat (limited to 'src/mesa')
| -rw-r--r-- | src/mesa/main/texstore.c | 177 |
1 files changed, 99 insertions, 78 deletions
diff --git a/src/mesa/main/texstore.c b/src/mesa/main/texstore.c index 108bb0dd9d..cc902bcb1a 100644 --- a/src/mesa/main/texstore.c +++ b/src/mesa/main/texstore.c @@ -173,7 +173,6 @@ static const struct { MAP4(0,1,2,3), }, - { IDX_RED, MAP4(0, ZERO, ZERO, ONE), @@ -289,7 +288,7 @@ compute_component_mapping(GLenum inFormat, GLenum outFormat, * Apply all needed pixel unpacking and pixel transfer operations. * Note that there are both logicalBaseFormat and textureBaseFormat parameters. * Suppose the user specifies GL_LUMINANCE as the internal texture format - * but the graphics hardware doesn't support luminance textures. So, might + * but the graphics hardware doesn't support luminance textures. So, we might * use an RGB hardware format instead. * If logicalBaseFormat != textureBaseFormat we have some extra work to do. * @@ -422,7 +421,7 @@ make_temp_float_image(GLcontext *ctx, GLuint dims, * Apply all needed pixel unpacking and pixel transfer operations. * Note that there are both logicalBaseFormat and textureBaseFormat parameters. * Suppose the user specifies GL_LUMINANCE as the internal texture format - * but the graphics hardware doesn't support luminance textures. So, might + * but the graphics hardware doesn't support luminance textures. So, we might * use an RGB hardware format instead. * If logicalBaseFormat != textureBaseFormat we have some extra work to do. * @@ -675,7 +674,10 @@ swizzle_copy(GLubyte *dst, GLuint dstComponents, const GLubyte *src, static const GLubyte map_identity[6] = { 0, 1, 2, 3, ZERO, ONE }; static const GLubyte map_3210[6] = { 3, 2, 1, 0, ZERO, ONE }; -/* Deal with the _REV input types: + +/** + * For 1-byte/pixel formats (or 8_8_8_8 packed formats), return a + * mapping array depending on endianness. */ static const GLubyte * type_mapping( GLenum srcType ) @@ -693,7 +695,10 @@ type_mapping( GLenum srcType ) } } -/* Mapping required if input type is + +/** + * For 1-byte/pixel formats (or 8_8_8_8 packed formats), return a + * mapping array depending on pixelstore byte swapping state. */ static const GLubyte * byteswap_mapping( GLboolean swapBytes, @@ -1430,7 +1435,6 @@ _mesa_texstore_argb8888(TEXSTORE_PARAMS) _mesa_swizzle_ubyte_image(ctx, dims, srcFormat, srcType, - baseInternalFormat, dstmap, 4, dstAddr, dstXoffset, dstYoffset, dstZoffset, @@ -1923,6 +1927,9 @@ _mesa_texstore_argb1555(TEXSTORE_PARAMS) } +/** + * Do texstore for 2-channel, 8-bit/channel, unsigned normalized formats. + */ static GLboolean _mesa_texstore_unorm88(TEXSTORE_PARAMS) { @@ -1955,7 +1962,6 @@ _mesa_texstore_unorm88(TEXSTORE_PARAMS) srcType == GL_UNSIGNED_BYTE && can_swizzle(baseInternalFormat) && can_swizzle(srcFormat)) { - GLubyte dstmap[4]; /* dstmap - how to swizzle from RGBA to dst format: @@ -2040,6 +2046,9 @@ _mesa_texstore_unorm88(TEXSTORE_PARAMS) } +/** + * Do texstore for 2-channel, 16-bit/channel, unsigned normalized formats. + */ static GLboolean _mesa_texstore_unorm1616(TEXSTORE_PARAMS) { @@ -2392,7 +2401,6 @@ _mesa_texstore_a8(TEXSTORE_PARAMS) srcType == GL_UNSIGNED_BYTE && can_swizzle(baseInternalFormat) && can_swizzle(srcFormat)) { - GLubyte dstmap[4]; /* dstmap - how to swizzle from RGBA to dst format: @@ -2566,7 +2574,6 @@ _mesa_texstore_dudv8(TEXSTORE_PARAMS) srcAddr, srcPacking); } else if (srcType == GL_BYTE) { - GLubyte dstmap[4]; /* dstmap - how to swizzle from RGBA to dst format: @@ -2772,7 +2779,8 @@ _mesa_texstore_signed_rgbx8888(TEXSTORE_PARAMS) /** - * Store a texture in MESA_FORMAT_SIGNED_RGBA8888 or MESA_FORMAT_SIGNED_RGBA8888_REV + * Store a texture in MESA_FORMAT_SIGNED_RGBA8888 or + * MESA_FORMAT_SIGNED_RGBA8888_REV */ static GLboolean _mesa_texstore_signed_rgba8888(TEXSTORE_PARAMS) @@ -2908,7 +2916,6 @@ _mesa_texstore_z24_s8(TEXSTORE_PARAMS) ASSERT(srcFormat == GL_DEPTH_STENCIL_EXT || srcFormat == GL_DEPTH_COMPONENT); ASSERT(srcFormat != GL_DEPTH_STENCIL_EXT || srcType == GL_UNSIGNED_INT_24_8_EXT); - if (srcFormat != GL_DEPTH_COMPONENT && ctx->Pixel.DepthScale == 1.0f && ctx->Pixel.DepthBias == 0.0f && !srcPacking->SwapBytes) { @@ -2919,7 +2926,8 @@ _mesa_texstore_z24_s8(TEXSTORE_PARAMS) dstImageOffsets, srcWidth, srcHeight, srcDepth, srcFormat, srcType, srcAddr, srcPacking); - } else if (srcFormat == GL_DEPTH_COMPONENT) { + } + else if (srcFormat == GL_DEPTH_COMPONENT) { /* In case we only upload depth we need to preserve the stencil */ for (img = 0; img < srcDepth; img++) { GLuint *dstRow = (GLuint *) dstAddr @@ -2939,7 +2947,8 @@ _mesa_texstore_z24_s8(TEXSTORE_PARAMS) if (srcFormat == GL_DEPTH_COMPONENT) { /* preserve stencil */ keepstencil = GL_TRUE; - } else if (srcFormat == GL_STENCIL_INDEX) { /* preserve depth */ + } + else if (srcFormat == GL_STENCIL_INDEX) { /* preserve depth */ keepdepth = GL_TRUE; } @@ -2988,8 +2997,11 @@ _mesa_texstore_s8_z24(TEXSTORE_PARAMS) GLint img, row; ASSERT(dstFormat == MESA_FORMAT_S8_Z24); - ASSERT(srcFormat == GL_DEPTH_STENCIL_EXT || srcFormat == GL_DEPTH_COMPONENT || srcFormat == GL_STENCIL_INDEX); - ASSERT(srcFormat != GL_DEPTH_STENCIL_EXT || srcType == GL_UNSIGNED_INT_24_8_EXT); + ASSERT(srcFormat == GL_DEPTH_STENCIL_EXT || + srcFormat == GL_DEPTH_COMPONENT || + srcFormat == GL_STENCIL_INDEX); + ASSERT(srcFormat != GL_DEPTH_STENCIL_EXT || + srcType == GL_UNSIGNED_INT_24_8_EXT); for (img = 0; img < srcDepth; img++) { GLuint *dstRow = (GLuint *) dstAddr @@ -3009,7 +3021,8 @@ _mesa_texstore_s8_z24(TEXSTORE_PARAMS) if (srcFormat == GL_DEPTH_COMPONENT) { /* preserve stencil */ keepstencil = GL_TRUE; - } else if (srcFormat == GL_STENCIL_INDEX) { /* preserve depth */ + } + else if (srcFormat == GL_STENCIL_INDEX) { /* preserve depth */ keepdepth = GL_TRUE; } @@ -3044,6 +3057,69 @@ _mesa_texstore_s8_z24(TEXSTORE_PARAMS) return GL_TRUE; } + +/** + * Store simple 8-bit/value stencil texture data. + */ +static GLboolean +_mesa_texstore_s8(TEXSTORE_PARAMS) +{ + ASSERT(dstFormat == MESA_FORMAT_S8); + ASSERT(srcFormat == GL_STENCIL_INDEX); + + if (!ctx->_ImageTransferState && + !srcPacking->SwapBytes && + baseInternalFormat == srcFormat && + srcType == GL_UNSIGNED_BYTE) { + /* simple memcpy path */ + memcpy_texture(ctx, dims, + dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, + dstRowStride, + dstImageOffsets, + srcWidth, srcHeight, srcDepth, srcFormat, srcType, + srcAddr, srcPacking); + } + else { + const GLint srcRowStride + = _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType) + / sizeof(GLuint); + GLint img, row; + + for (img = 0; img < srcDepth; img++) { + GLubyte *dstRow = (GLubyte *) dstAddr + + dstImageOffsets[dstZoffset + img] + + dstYoffset * dstRowStride / sizeof(GLuint) + + dstXoffset; + const GLuint *src + = (const GLuint *) _mesa_image_address(dims, srcPacking, srcAddr, + srcWidth, srcHeight, + srcFormat, srcType, + img, 0, 0); + for (row = 0; row < srcHeight; row++) { + GLubyte stencil[MAX_WIDTH]; + GLint i; + + /* get the 8-bit stencil values */ + _mesa_unpack_stencil_span(ctx, srcWidth, + GL_UNSIGNED_BYTE, /* dst type */ + stencil, /* dst addr */ + srcType, src, srcPacking, + ctx->_ImageTransferState); + /* merge stencil values into depth values */ + for (i = 0; i < srcWidth; i++) + dstRow[i] = stencil[i]; + + src += srcRowStride; + dstRow += dstRowStride / sizeof(GLubyte); + } + } + + } + + return GL_TRUE; +} + + /** * Store an image in any of the formats: * _mesa_texformat_rgba_float32 @@ -3117,62 +3193,7 @@ _mesa_texstore_rgba_float32(TEXSTORE_PARAMS) return GL_TRUE; } -static GLboolean -_mesa_texstore_s8(TEXSTORE_PARAMS) -{ - ASSERT(dstFormat == MESA_FORMAT_S8); - ASSERT(srcFormat == GL_STENCIL_INDEX); - if (!ctx->_ImageTransferState && - !srcPacking->SwapBytes && - baseInternalFormat == srcFormat && - srcType == GL_UNSIGNED_BYTE) { - /* simple memcpy path */ - memcpy_texture(ctx, dims, - dstFormat, dstAddr, dstXoffset, dstYoffset, dstZoffset, - dstRowStride, - dstImageOffsets, - srcWidth, srcHeight, srcDepth, srcFormat, srcType, - srcAddr, srcPacking); - } else { - const GLint srcRowStride - = _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, srcType) - / sizeof(GLuint); - GLint img, row; - - for (img = 0; img < srcDepth; img++) { - GLubyte *dstRow = (GLubyte *) dstAddr - + dstImageOffsets[dstZoffset + img] - + dstYoffset * dstRowStride / sizeof(GLuint) - + dstXoffset; - const GLuint *src - = (const GLuint *) _mesa_image_address(dims, srcPacking, srcAddr, - srcWidth, srcHeight, - srcFormat, srcType, - img, 0, 0); - for (row = 0; row < srcHeight; row++) { - GLubyte stencil[MAX_WIDTH]; - GLint i; - - /* get the 8-bit stencil values */ - _mesa_unpack_stencil_span(ctx, srcWidth, - GL_UNSIGNED_BYTE, /* dst type */ - stencil, /* dst addr */ - srcType, src, srcPacking, - ctx->_ImageTransferState); - /* merge stencil values into depth values */ - for (i = 0; i < srcWidth; i++) - dstRow[i] = stencil[i]; - - src += srcRowStride; - dstRow += dstRowStride / sizeof(GLubyte); - } - } - - } - - return GL_TRUE; -} /** * As above, but store 16-bit floats. @@ -3637,12 +3658,12 @@ _mesa_texstore_srgb8(TEXSTORE_PARAMS) newDstFormat = MESA_FORMAT_RGB888; k = _mesa_texstore_rgb888(ctx, dims, baseInternalFormat, - newDstFormat, dstAddr, - dstXoffset, dstYoffset, dstZoffset, - dstRowStride, dstImageOffsets, - srcWidth, srcHeight, srcDepth, - srcFormat, srcType, - srcAddr, srcPacking); + newDstFormat, dstAddr, + dstXoffset, dstYoffset, dstZoffset, + dstRowStride, dstImageOffsets, + srcWidth, srcHeight, srcDepth, + srcFormat, srcType, + srcAddr, srcPacking); return k; } @@ -3748,7 +3769,7 @@ _mesa_texstore_sla8(TEXSTORE_PARAMS) /** - * Table mapping MESA_FORMAT_8 to _mesa_texstore_*() + * Table mapping MESA_FORMAT_* to _mesa_texstore_*() * XXX this is somewhat temporary. */ static const struct { |