diff options
Diffstat (limited to 'src/mesa/main/texstore.c')
| -rw-r--r-- | src/mesa/main/texstore.c | 186 |
1 files changed, 171 insertions, 15 deletions
diff --git a/src/mesa/main/texstore.c b/src/mesa/main/texstore.c index d70497668b2..c30ef1f74a2 100644 --- a/src/mesa/main/texstore.c +++ b/src/mesa/main/texstore.c @@ -55,6 +55,7 @@ #include "bufferobj.h" #include "colormac.h" #include "format_pack.h" +#include "format_utils.h" #include "image.h" #include "macros.h" #include "mipmap.h" @@ -233,21 +234,44 @@ static int get_map_idx(GLenum value) { switch (value) { - case GL_LUMINANCE: return IDX_LUMINANCE; - case GL_ALPHA: return IDX_ALPHA; - case GL_INTENSITY: return IDX_INTENSITY; - case GL_LUMINANCE_ALPHA: return IDX_LUMINANCE_ALPHA; - case GL_RGB: return IDX_RGB; - case GL_RGBA: return IDX_RGBA; - case GL_RED: return IDX_RED; - case GL_GREEN: return IDX_GREEN; - case GL_BLUE: return IDX_BLUE; - case GL_BGR: return IDX_BGR; - case GL_BGRA: return IDX_BGRA; - case GL_ABGR_EXT: return IDX_ABGR; - case GL_RG: return IDX_RG; + case GL_LUMINANCE: + case GL_LUMINANCE_INTEGER_EXT: + return IDX_LUMINANCE; + case GL_ALPHA: + case GL_ALPHA_INTEGER: + return IDX_ALPHA; + case GL_INTENSITY: + return IDX_INTENSITY; + case GL_LUMINANCE_ALPHA: + case GL_LUMINANCE_ALPHA_INTEGER_EXT: + return IDX_LUMINANCE_ALPHA; + case GL_RGB: + case GL_RGB_INTEGER: + return IDX_RGB; + case GL_RGBA: + case GL_RGBA_INTEGER: + return IDX_RGBA; + case GL_RED: + case GL_RED_INTEGER: + return IDX_RED; + case GL_GREEN: + return IDX_GREEN; + case GL_BLUE: + return IDX_BLUE; + case GL_BGR: + case GL_BGR_INTEGER: + return IDX_BGR; + case GL_BGRA: + case GL_BGRA_INTEGER: + return IDX_BGRA; + case GL_ABGR_EXT: + return IDX_ABGR; + case GL_RG: + case GL_RG_INTEGER: + return IDX_RG; default: - _mesa_problem(NULL, "Unexpected inFormat"); + _mesa_problem(NULL, "Unexpected inFormat %s", + _mesa_lookup_enum_by_nr(value)); return 0; } } @@ -789,6 +813,7 @@ 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 }; +static const GLubyte map_1032[6] = { 1, 0, 3, 2, ZERO, ONE }; /** @@ -826,6 +851,12 @@ byteswap_mapping( GLboolean swapBytes, switch (srcType) { case GL_BYTE: case GL_UNSIGNED_BYTE: + case GL_SHORT: + case GL_UNSIGNED_SHORT: + case GL_INT: + case GL_UNSIGNED_INT: + case GL_FLOAT: + case GL_HALF_FLOAT: return map_identity; case GL_UNSIGNED_INT_8_8_8_8: case GL_UNSIGNED_INT_8_8_8_8_REV: @@ -3621,6 +3652,124 @@ texstore_compressed(TEXSTORE_PARAMS) srcFormat, srcType, srcAddr, srcPacking); } +static void +invert_swizzle(uint8_t dst[4], const uint8_t src[4]) +{ + int i, j; + + dst[0] = MESA_FORMAT_SWIZZLE_NONE; + dst[1] = MESA_FORMAT_SWIZZLE_NONE; + dst[2] = MESA_FORMAT_SWIZZLE_NONE; + dst[3] = MESA_FORMAT_SWIZZLE_NONE; + + for (i = 0; i < 4; ++i) + for (j = 0; j < 4; ++j) + if (src[j] == i && dst[i] == MESA_FORMAT_SWIZZLE_NONE) + dst[i] = j; +} + +/** Store a texture by per-channel conversions and swizzling. + * + * This function attempts to perform a texstore operation by doing simple + * per-channel conversions and swizzling. This covers a huge chunk of the + * texture storage operations that anyone cares about. If this function is + * incapable of performing the operation, it bails and returns GL_FALSE. + */ +static GLboolean +texstore_swizzle(TEXSTORE_PARAMS) +{ + const GLint srcRowStride = _mesa_image_row_stride(srcPacking, srcWidth, + srcFormat, srcType); + const GLint srcImageStride = _mesa_image_image_stride(srcPacking, + srcWidth, srcHeight, srcFormat, srcType); + const GLubyte *srcImage = (const GLubyte *) _mesa_image_address(dims, + srcPacking, srcAddr, srcWidth, srcHeight, srcFormat, srcType, 0, 0, 0); + const int src_components = _mesa_components_in_format(srcFormat); + + GLubyte swizzle[4], rgba2base[6], base2src[6], rgba2dst[4], dst2rgba[4]; + const GLubyte *swap; + GLenum dst_type; + int dst_components; + bool is_array, normalized, need_swap; + GLint i, img, row; + const GLubyte *src_row; + GLubyte *dst_row; + + is_array = _mesa_format_to_array(dstFormat, &dst_type, &dst_components, + rgba2dst, &normalized); + + if (!is_array) + return GL_FALSE; + + switch (srcType) { + case GL_FLOAT: + case GL_UNSIGNED_BYTE: + case GL_BYTE: + case GL_UNSIGNED_SHORT: + case GL_SHORT: + case GL_UNSIGNED_INT: + case GL_INT: + /* If wa have to swap bytes in a multi-byte datatype, that means + * we're not doing an array conversion anymore */ + if (srcPacking->SwapBytes) + return GL_FALSE; + need_swap = false; + break; + case GL_UNSIGNED_INT_8_8_8_8: + need_swap = srcPacking->SwapBytes; + if (_mesa_little_endian()) + need_swap = !need_swap; + srcType = GL_UNSIGNED_BYTE; + break; + case GL_UNSIGNED_INT_8_8_8_8_REV: + need_swap = srcPacking->SwapBytes; + if (!_mesa_little_endian()) + need_swap = !need_swap; + srcType = GL_UNSIGNED_BYTE; + break; + default: + return GL_FALSE; + } + swap = need_swap ? map_3210 : map_identity; + + compute_component_mapping(srcFormat, baseInternalFormat, base2src); + compute_component_mapping(baseInternalFormat, GL_RGBA, rgba2base); + invert_swizzle(dst2rgba, rgba2dst); + + for (i = 0; i < 4; i++) { + if (dst2rgba[i] == MESA_FORMAT_SWIZZLE_NONE) + swizzle[i] = MESA_FORMAT_SWIZZLE_NONE; + else + swizzle[i] = swap[base2src[rgba2base[dst2rgba[i]]]]; + } + + /* Is it normalized? */ + normalized |= !_mesa_is_enum_format_integer(srcFormat); + + for (img = 0; img < srcDepth; img++) { + if (dstRowStride == srcWidth * dst_components && + srcRowStride == srcWidth * src_components) { + _mesa_swizzle_and_convert(dstSlices[img], dst_type, dst_components, + srcImage, srcType, src_components, + swizzle, normalized, srcWidth * srcHeight); + } else { + src_row = srcImage; + dst_row = dstSlices[img]; + for (row = 0; row < srcHeight; row++) { + _mesa_swizzle_and_convert(dst_row, dst_type, dst_components, + src_row, srcType, src_components, + swizzle, normalized, srcWidth); + dst_row += dstRowStride; + src_row += srcRowStride; + } + } + srcImage += srcImageStride; + } + + return GL_TRUE; +} + + static GLboolean texstore_rgba(TEXSTORE_PARAMS) { @@ -3796,6 +3945,14 @@ texstore_rgba(TEXSTORE_PARAMS) initialized = GL_TRUE; } + if (texstore_swizzle(ctx, dims, baseInternalFormat, + dstFormat, + dstRowStride, dstSlices, + srcWidth, srcHeight, srcDepth, + srcFormat, srcType, srcAddr, srcPacking)) { + return GL_TRUE; + } + ASSERT(table[dstFormat]); return table[dstFormat](ctx, dims, baseInternalFormat, dstFormat, dstRowStride, dstSlices, @@ -3888,7 +4045,6 @@ _mesa_texstore_memcpy(TEXSTORE_PARAMS) return GL_TRUE; } - /** * Store user data into texture memory. * Called via glTex[Sub]Image1/2/3D() |