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authorDaniel Borca <dborca@users.sourceforge.net>2004-08-16 08:32:06 +0000
committerDaniel Borca <dborca@users.sourceforge.net>2004-08-16 08:32:06 +0000
commit624477afbba684922d02fa5c76b4d10664df9063 (patch)
tree868c971912502ac8cc143937e131e5af3b7b7c44
parentcd643491ad57fc1d21a1638de7e7d79881ccfac1 (diff)
fixed texture fetchers, fixed automatic mipmap generation, some cleanup
-rw-r--r--src/mesa/drivers/glide/fxddtex.c93
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;