diff options
Diffstat (limited to 'src/mesa/drivers/glide/fxddtex.c')
| -rw-r--r-- | src/mesa/drivers/glide/fxddtex.c | 93 |
1 files changed, 71 insertions, 22 deletions
diff --git a/src/mesa/drivers/glide/fxddtex.c b/src/mesa/drivers/glide/fxddtex.c index 256c389469..419c9d17c6 100644 --- a/src/mesa/drivers/glide/fxddtex.c +++ b/src/mesa/drivers/glide/fxddtex.c @@ -48,19 +48,56 @@ #include "texstore.h" +/* no borders! can't halve 1x1! (stride > width * comp) not allowed */ void -_mesa_halve2x2_teximage2d ( GLuint bytesPerPixel, +_mesa_halve2x2_teximage2d ( GLcontext *ctx, + struct gl_texture_image *texImage, + GLuint bytesPerPixel, GLint srcWidth, GLint srcHeight, const GLvoid *srcImage, GLvoid *dstImage ) { GLint i, j, k; - const GLint dstWidth = srcWidth / 2; - const GLint dstHeight = srcHeight / 2; - const GLint srcRowStride = srcWidth * bytesPerPixel; - const GLubyte *src = srcImage; + GLint dstWidth = srcWidth / 2; + GLint dstHeight = srcHeight / 2; + GLint srcRowStride = srcWidth * bytesPerPixel; + GLubyte *src = srcImage; GLubyte *dst = dstImage; - /* no borders! can't halve 1x1! (stride > width * comp) not allowed */ + GLuint bpt = 0; + GLubyte *_s; + GLubyte *_d; + GLenum _t; + + if (texImage->TexFormat->MesaFormat == MESA_FORMAT_RGB565) { + _t = GL_UNSIGNED_SHORT_5_6_5_REV; + bpt = bytesPerPixel; + } else if (texImage->TexFormat->MesaFormat == MESA_FORMAT_ARGB4444) { + _t = GL_UNSIGNED_SHORT_4_4_4_4_REV; + bpt = bytesPerPixel; + } else if (texImage->TexFormat->MesaFormat == MESA_FORMAT_ARGB1555) { + _t = GL_UNSIGNED_SHORT_1_5_5_5_REV; + bpt = bytesPerPixel; + } + if (bpt) { + bytesPerPixel = 4; + srcRowStride = srcWidth * bytesPerPixel; + if (dstWidth == 0) { + dstWidth = 1; + } + if (dstHeight == 0) { + dstHeight = 1; + } + _s = src = MALLOC(srcRowStride * srcHeight); + _d = dst = MALLOC(dstWidth * bytesPerPixel * dstHeight); + _mesa_texstore_rgba8888(ctx, 2, GL_RGBA, + &_mesa_texformat_rgba8888_rev, src, + 0, 0, 0, /* dstX/Y/Zoffset */ + srcRowStride, /* dstRowStride */ + 0, /* dstImageStride */ + srcWidth, srcHeight, 1, + texImage->Format, _t, srcImage, &ctx->DefaultPacking); + } + if (srcHeight == 1) { for (i = 0; i < dstWidth; i++) { for (k = 0; k < bytesPerPixel; k++) { @@ -95,6 +132,20 @@ _mesa_halve2x2_teximage2d ( GLuint bytesPerPixel, src += srcRowStride; } } + + if (bpt) { + src = _s; + dst = _d; + texImage->TexFormat->StoreImage(ctx, 2, texImage->Format, + texImage->TexFormat, dstImage, + 0, 0, 0, /* dstX/Y/Zoffset */ + dstWidth * bpt, + 0, /* dstImageStride */ + dstWidth, dstHeight, 1, + GL_BGRA, CHAN_TYPE, dst, &ctx->DefaultPacking); + FREE(dst); + FREE(src); + } } @@ -840,10 +891,10 @@ fetch_r4g4b4a4(const struct gl_texture_image *texImage, j = j * mml->hScale; texel = ((GLushort *) texImage->Data) + j * mml->width + i; - rgba[RCOMP] = FX_rgb_scale_4[(*texel >> 12) & 0xF]; - rgba[GCOMP] = FX_rgb_scale_4[(*texel >> 8) & 0xF]; - rgba[BCOMP] = FX_rgb_scale_4[(*texel >> 4) & 0xF]; - rgba[ACOMP] = FX_rgb_scale_4[ *texel & 0xF]; + rgba[RCOMP] = FX_rgb_scale_4[(*texel >> 8) & 0xF]; + rgba[GCOMP] = FX_rgb_scale_4[(*texel >> 4) & 0xF]; + rgba[BCOMP] = FX_rgb_scale_4[ *texel & 0xF]; + rgba[ACOMP] = FX_rgb_scale_4[(*texel >> 12) & 0xF]; } @@ -858,10 +909,10 @@ fetch_r5g5b5a1(const struct gl_texture_image *texImage, j = j * mml->hScale; texel = ((GLushort *) texImage->Data) + j * mml->width + i; - rgba[RCOMP] = FX_rgb_scale_5[(*texel >> 11) & 0x1F]; - rgba[GCOMP] = FX_rgb_scale_5[(*texel >> 6) & 0x1F]; - rgba[BCOMP] = FX_rgb_scale_5[(*texel >> 1) & 0x1F]; - rgba[ACOMP] = ((*texel) & 0x01) * 255; + rgba[RCOMP] = FX_rgb_scale_5[(*texel >> 10) & 0x1F]; + rgba[GCOMP] = FX_rgb_scale_5[(*texel >> 5) & 0x1F]; + rgba[BCOMP] = FX_rgb_scale_5[ *texel & 0x1F]; + rgba[ACOMP] = (*texel >> 15) * 255; } @@ -1322,12 +1373,6 @@ fxDDTexImage2D(GLcontext * ctx, GLenum target, GLint level, #if FX_COMPRESS_S3TC_AS_FXT1_HACK /* [koolsmoky] substitute FXT1 for DXTn and Legacy S3TC */ - /* [dBorca] we should update texture's attribute, then, - * because if the application asks us to decompress, we - * have to know the REAL format! Also, DXT3/5 might not - * be correct, since it would mess with "compressedSize". - * Ditto for GL_RGBA[4]_S3TC, which is always mapped to DXT3. - */ if (texImage->IsCompressed) { switch (internalFormat) { case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: @@ -1478,7 +1523,9 @@ fxDDTexImage2D(GLcontext * ctx, GLenum target, GLint level, NULL); mipImage = _mesa_select_tex_image(ctx, texUnit, target, level); mip = FX_MIPMAP_DATA(mipImage); - _mesa_halve2x2_teximage2d(texelBytes, + _mesa_halve2x2_teximage2d(ctx, + texImage, + texelBytes, mml->width, mml->height, texImage->Data, mipImage->Data); texImage = mipImage; @@ -1602,7 +1649,9 @@ fxDDTexSubImage2D(GLcontext * ctx, GLenum target, GLint level, ++level; mipImage = _mesa_select_tex_image(ctx, texUnit, target, level); mip = FX_MIPMAP_DATA(mipImage); - _mesa_halve2x2_teximage2d(texelBytes, + _mesa_halve2x2_teximage2d(ctx, + texImage, + texelBytes, mml->width, mml->height, texImage->Data, mipImage->Data); texImage = mipImage; |