From c1e6c7428a8d2c1b60ffac7df7a3f56c300fa983 Mon Sep 17 00:00:00 2001 From: marha Date: Thu, 22 Sep 2011 15:20:09 +0200 Subject: libxtrans libX11 libX11 libXext mesa xserver git update 22 sep 2011 --- mesalib/src/mesa/main/texcompress_fxt1.c | 168 +++++++++++++++++-------------- 1 file changed, 91 insertions(+), 77 deletions(-) (limited to 'mesalib/src/mesa/main/texcompress_fxt1.c') diff --git a/mesalib/src/mesa/main/texcompress_fxt1.c b/mesalib/src/mesa/main/texcompress_fxt1.c index a75487ce2..0437cfcc1 100644 --- a/mesalib/src/mesa/main/texcompress_fxt1.c +++ b/mesalib/src/mesa/main/texcompress_fxt1.c @@ -52,7 +52,7 @@ fxt1_encode (GLuint width, GLuint height, GLint comps, void fxt1_decode_1 (const void *texture, GLint stride, - GLint i, GLint j, GLchan *rgba); + GLint i, GLint j, GLubyte *rgba); /** @@ -61,11 +61,11 @@ fxt1_decode_1 (const void *texture, GLint stride, GLboolean _mesa_texstore_rgb_fxt1(TEXSTORE_PARAMS) { - const GLchan *pixels; + const GLubyte *pixels; GLint srcRowStride; GLubyte *dst; const GLint texWidth = dstRowStride * 8 / 16; /* a bit of a hack */ - const GLchan *tempImage = NULL; + const GLubyte *tempImage = NULL; ASSERT(dstFormat == MESA_FORMAT_RGB_FXT1); ASSERT(dstXoffset % 8 == 0); @@ -75,11 +75,11 @@ _mesa_texstore_rgb_fxt1(TEXSTORE_PARAMS) (void) dstImageOffsets; if (srcFormat != GL_RGB || - srcType != CHAN_TYPE || + srcType != GL_UNSIGNED_BYTE || ctx->_ImageTransferState || srcPacking->SwapBytes) { - /* convert image to RGB/GLchan */ - tempImage = _mesa_make_temp_chan_image(ctx, dims, + /* convert image to RGB/GLubyte */ + tempImage = _mesa_make_temp_ubyte_image(ctx, dims, baseInternalFormat, _mesa_get_format_base_format(dstFormat), srcWidth, srcHeight, srcDepth, @@ -92,9 +92,9 @@ _mesa_texstore_rgb_fxt1(TEXSTORE_PARAMS) srcFormat = GL_RGB; } else { - pixels = (const GLchan *) srcAddr; + pixels = (const GLubyte *) srcAddr; srcRowStride = _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, - srcType) / sizeof(GLchan); + srcType) / sizeof(GLubyte); } dst = _mesa_compressed_image_address(dstXoffset, dstYoffset, 0, @@ -117,11 +117,11 @@ _mesa_texstore_rgb_fxt1(TEXSTORE_PARAMS) GLboolean _mesa_texstore_rgba_fxt1(TEXSTORE_PARAMS) { - const GLchan *pixels; + const GLubyte *pixels; GLint srcRowStride; GLubyte *dst; GLint texWidth = dstRowStride * 8 / 16; /* a bit of a hack */ - const GLchan *tempImage = NULL; + const GLubyte *tempImage = NULL; ASSERT(dstFormat == MESA_FORMAT_RGBA_FXT1); ASSERT(dstXoffset % 8 == 0); @@ -131,11 +131,11 @@ _mesa_texstore_rgba_fxt1(TEXSTORE_PARAMS) (void) dstImageOffsets; if (srcFormat != GL_RGBA || - srcType != CHAN_TYPE || + srcType != GL_UNSIGNED_BYTE || ctx->_ImageTransferState || srcPacking->SwapBytes) { - /* convert image to RGBA/GLchan */ - tempImage = _mesa_make_temp_chan_image(ctx, dims, + /* convert image to RGBA/GLubyte */ + tempImage = _mesa_make_temp_ubyte_image(ctx, dims, baseInternalFormat, _mesa_get_format_base_format(dstFormat), srcWidth, srcHeight, srcDepth, @@ -148,9 +148,9 @@ _mesa_texstore_rgba_fxt1(TEXSTORE_PARAMS) srcFormat = GL_RGBA; } else { - pixels = (const GLchan *) srcAddr; + pixels = (const GLubyte *) srcAddr; srcRowStride = _mesa_image_row_stride(srcPacking, srcWidth, srcFormat, - srcType) / sizeof(GLchan); + srcType) / sizeof(GLubyte); } dst = _mesa_compressed_image_address(dstXoffset, dstYoffset, 0, @@ -171,14 +171,14 @@ void _mesa_fetch_texel_2d_f_rgba_fxt1( const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel ) { - /* just sample as GLchan and convert to float here */ - GLchan rgba[4]; + /* just sample as GLubyte and convert to float here */ + GLubyte rgba[4]; (void) k; fxt1_decode_1(texImage->Base.Data, texImage->Base.RowStride, i, j, rgba); - texel[RCOMP] = CHAN_TO_FLOAT(rgba[RCOMP]); - texel[GCOMP] = CHAN_TO_FLOAT(rgba[GCOMP]); - texel[BCOMP] = CHAN_TO_FLOAT(rgba[BCOMP]); - texel[ACOMP] = CHAN_TO_FLOAT(rgba[ACOMP]); + texel[RCOMP] = UBYTE_TO_FLOAT(rgba[RCOMP]); + texel[GCOMP] = UBYTE_TO_FLOAT(rgba[GCOMP]); + texel[BCOMP] = UBYTE_TO_FLOAT(rgba[BCOMP]); + texel[ACOMP] = UBYTE_TO_FLOAT(rgba[ACOMP]); } @@ -186,13 +186,13 @@ void _mesa_fetch_texel_2d_f_rgb_fxt1( const struct swrast_texture_image *texImage, GLint i, GLint j, GLint k, GLfloat *texel ) { - /* just sample as GLchan and convert to float here */ - GLchan rgba[4]; + /* just sample as GLubyte and convert to float here */ + GLubyte rgba[4]; (void) k; fxt1_decode_1(texImage->Base.Data, texImage->Base.RowStride, i, j, rgba); - texel[RCOMP] = CHAN_TO_FLOAT(rgba[RCOMP]); - texel[GCOMP] = CHAN_TO_FLOAT(rgba[GCOMP]); - texel[BCOMP] = CHAN_TO_FLOAT(rgba[BCOMP]); + texel[RCOMP] = UBYTE_TO_FLOAT(rgba[RCOMP]); + texel[GCOMP] = UBYTE_TO_FLOAT(rgba[GCOMP]); + texel[BCOMP] = UBYTE_TO_FLOAT(rgba[BCOMP]); texel[ACOMP] = 1.0F; } @@ -1289,6 +1289,41 @@ fxt1_quantize (GLuint *cc, const GLubyte *lines[], GLint comps) } + +/** + * Upscale an image by replication, not (typical) stretching. + * We use this when the image width or height is less than a + * certain size (4, 8) and we need to upscale an image. + */ +static void +upscale_teximage2d(GLsizei inWidth, GLsizei inHeight, + GLsizei outWidth, GLsizei outHeight, + GLint comps, const GLubyte *src, GLint srcRowStride, + GLubyte *dest ) +{ + GLint i, j, k; + + ASSERT(outWidth >= inWidth); + ASSERT(outHeight >= inHeight); +#if 0 + ASSERT(inWidth == 1 || inWidth == 2 || inHeight == 1 || inHeight == 2); + ASSERT((outWidth & 3) == 0); + ASSERT((outHeight & 3) == 0); +#endif + + for (i = 0; i < outHeight; i++) { + const GLint ii = i % inHeight; + for (j = 0; j < outWidth; j++) { + const GLint jj = j % inWidth; + for (k = 0; k < comps; k++) { + dest[(i * outWidth + j) * comps + k] + = src[ii * srcRowStride + jj * comps + k]; + } + } + } +} + + static void fxt1_encode (GLuint width, GLuint height, GLint comps, const void *source, GLint srcRowStride, @@ -1305,42 +1340,21 @@ fxt1_encode (GLuint width, GLuint height, GLint comps, if ((width & 7) | (height & 3)) { GLint newWidth = (width + 7) & ~7; GLint newHeight = (height + 3) & ~3; - newSource = malloc(comps * newWidth * newHeight * sizeof(GLchan)); + newSource = malloc(comps * newWidth * newHeight * sizeof(GLubyte)); if (!newSource) { GET_CURRENT_CONTEXT(ctx); _mesa_error(ctx, GL_OUT_OF_MEMORY, "texture compression"); goto cleanUp; } - _mesa_upscale_teximage2d(width, height, newWidth, newHeight, - comps, (const GLchan *) source, - srcRowStride, (GLchan *) newSource); + upscale_teximage2d(width, height, newWidth, newHeight, + comps, (const GLubyte *) source, + srcRowStride, (GLubyte *) newSource); source = newSource; width = newWidth; height = newHeight; srcRowStride = comps * newWidth; } - /* convert from 16/32-bit channels to GLubyte if needed */ - if (CHAN_TYPE != GL_UNSIGNED_BYTE) { - const GLuint n = width * height * comps; - const GLchan *src = (const GLchan *) source; - GLubyte *dest = (GLubyte *) malloc(n * sizeof(GLubyte)); - GLuint i; - if (!dest) { - GET_CURRENT_CONTEXT(ctx); - _mesa_error(ctx, GL_OUT_OF_MEMORY, "texture compression"); - goto cleanUp; - } - for (i = 0; i < n; i++) { - dest[i] = CHAN_TO_UBYTE(src[i]); - } - if (newSource != NULL) { - free(newSource); - } - newSource = dest; /* we'll free this buffer before returning */ - source = dest; /* the new, GLubyte incoming image */ - } - data = (const GLubyte *) source; destRowStride = (destRowStride - width * 2) / 4; for (y = 0; y < height; y += 4) { @@ -1402,7 +1416,7 @@ static const GLubyte _rgb_scale_6[] = { static void -fxt1_decode_1HI (const GLubyte *code, GLint t, GLchan *rgba) +fxt1_decode_1HI (const GLubyte *code, GLint t, GLubyte *rgba) { const GLuint *cc; @@ -1428,16 +1442,16 @@ fxt1_decode_1HI (const GLubyte *code, GLint t, GLchan *rgba) g = LERP(6, t, UP5(CC_SEL(cc, 5)), UP5(CC_SEL(cc, 20))); r = LERP(6, t, UP5(CC_SEL(cc, 10)), UP5(CC_SEL(cc, 25))); } - rgba[RCOMP] = UBYTE_TO_CHAN(r); - rgba[GCOMP] = UBYTE_TO_CHAN(g); - rgba[BCOMP] = UBYTE_TO_CHAN(b); - rgba[ACOMP] = CHAN_MAX; + rgba[RCOMP] = r; + rgba[GCOMP] = g; + rgba[BCOMP] = b; + rgba[ACOMP] = 255; } } static void -fxt1_decode_1CHROMA (const GLubyte *code, GLint t, GLchan *rgba) +fxt1_decode_1CHROMA (const GLubyte *code, GLint t, GLubyte *rgba) { const GLuint *cc; GLuint kk; @@ -1452,15 +1466,15 @@ fxt1_decode_1CHROMA (const GLubyte *code, GLint t, GLchan *rgba) t *= 15; cc = (const GLuint *)(code + 8 + t / 8); kk = cc[0] >> (t & 7); - rgba[BCOMP] = UBYTE_TO_CHAN( UP5(kk) ); - rgba[GCOMP] = UBYTE_TO_CHAN( UP5(kk >> 5) ); - rgba[RCOMP] = UBYTE_TO_CHAN( UP5(kk >> 10) ); - rgba[ACOMP] = CHAN_MAX; + rgba[BCOMP] = UP5(kk); + rgba[GCOMP] = UP5(kk >> 5); + rgba[RCOMP] = UP5(kk >> 10); + rgba[ACOMP] = 255; } static void -fxt1_decode_1MIXED (const GLubyte *code, GLint t, GLchan *rgba) +fxt1_decode_1MIXED (const GLubyte *code, GLint t, GLubyte *rgba) { const GLuint *cc; GLuint col[2][3]; @@ -1515,10 +1529,10 @@ fxt1_decode_1MIXED (const GLubyte *code, GLint t, GLchan *rgba) g = (UP5(col[0][GCOMP]) + UP6(col[1][GCOMP], glsb)) / 2; r = (UP5(col[0][RCOMP]) + UP5(col[1][RCOMP])) / 2; } - rgba[RCOMP] = UBYTE_TO_CHAN(r); - rgba[GCOMP] = UBYTE_TO_CHAN(g); - rgba[BCOMP] = UBYTE_TO_CHAN(b); - rgba[ACOMP] = CHAN_MAX; + rgba[RCOMP] = r; + rgba[GCOMP] = g; + rgba[BCOMP] = b; + rgba[ACOMP] = 255; } } else { /* alpha[0] == 0 */ @@ -1537,16 +1551,16 @@ fxt1_decode_1MIXED (const GLubyte *code, GLint t, GLchan *rgba) UP6(col[1][GCOMP], glsb)); r = LERP(3, t, UP5(col[0][RCOMP]), UP5(col[1][RCOMP])); } - rgba[RCOMP] = UBYTE_TO_CHAN(r); - rgba[GCOMP] = UBYTE_TO_CHAN(g); - rgba[BCOMP] = UBYTE_TO_CHAN(b); - rgba[ACOMP] = CHAN_MAX; + rgba[RCOMP] = r; + rgba[GCOMP] = g; + rgba[BCOMP] = b; + rgba[ACOMP] = 255; } } static void -fxt1_decode_1ALPHA (const GLubyte *code, GLint t, GLchan *rgba) +fxt1_decode_1ALPHA (const GLubyte *code, GLint t, GLubyte *rgba) { const GLuint *cc; GLubyte r, g, b, a; @@ -1613,18 +1627,18 @@ fxt1_decode_1ALPHA (const GLubyte *code, GLint t, GLchan *rgba) r = UP5(kk >> 10); } } - rgba[RCOMP] = UBYTE_TO_CHAN(r); - rgba[GCOMP] = UBYTE_TO_CHAN(g); - rgba[BCOMP] = UBYTE_TO_CHAN(b); - rgba[ACOMP] = UBYTE_TO_CHAN(a); + rgba[RCOMP] = r; + rgba[GCOMP] = g; + rgba[BCOMP] = b; + rgba[ACOMP] = a; } void fxt1_decode_1 (const void *texture, GLint stride, /* in pixels */ - GLint i, GLint j, GLchan *rgba) + GLint i, GLint j, GLubyte *rgba) { - static void (*decode_1[]) (const GLubyte *, GLint, GLchan *) = { + static void (*decode_1[]) (const GLubyte *, GLint, GLubyte *) = { fxt1_decode_1HI, /* cc-high = "00?" */ fxt1_decode_1HI, /* cc-high = "00?" */ fxt1_decode_1CHROMA, /* cc-chroma = "010" */ -- cgit v1.2.3