/*
* Mesa 3-D graphics library
- * Version: 7.1
*
* Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
*/
#include "glheader.h"
#include "imports.h"
-#include "colormac.h"
#include "image.h"
#include "macros.h"
-#include "mfeatures.h"
#include "mipmap.h"
#include "texcompress.h"
#include "texcompress_fxt1.h"
#include "texstore.h"
-#include "swrast/s_context.h"
static void
GLubyte *dst;
const GLubyte *tempImage = NULL;
- ASSERT(dstFormat == MESA_FORMAT_RGB_FXT1);
+ assert(dstFormat == MESA_FORMAT_RGB_FXT1);
if (srcFormat != GL_RGB ||
srcType != GL_UNSIGNED_BYTE ||
ctx->_ImageTransferState ||
- srcPacking->RowLength != srcWidth ||
+ ALIGN(srcPacking->RowLength, srcPacking->Alignment) != srcWidth ||
srcPacking->SwapBytes) {
/* convert image to RGB/GLubyte */
- tempImage = _mesa_make_temp_ubyte_image(ctx, dims,
- baseInternalFormat,
- _mesa_get_format_base_format(dstFormat),
- srcWidth, srcHeight, srcDepth,
- srcFormat, srcType, srcAddr,
- srcPacking);
+ GLubyte *tempImageSlices[1];
+ int rgbRowStride = 3 * srcWidth * sizeof(GLubyte);
+ tempImage = malloc(srcWidth * srcHeight * 3 * sizeof(GLubyte));
if (!tempImage)
return GL_FALSE; /* out of memory */
+ tempImageSlices[0] = (GLubyte *) tempImage;
+ _mesa_texstore(ctx, dims,
+ baseInternalFormat,
+ MESA_FORMAT_RGB_UNORM8,
+ rgbRowStride, tempImageSlices,
+ srcWidth, srcHeight, srcDepth,
+ srcFormat, srcType, srcAddr,
+ srcPacking);
pixels = tempImage;
srcRowStride = 3 * srcWidth;
srcFormat = GL_RGB;
GLubyte *dst;
const GLubyte *tempImage = NULL;
- ASSERT(dstFormat == MESA_FORMAT_RGBA_FXT1);
+ assert(dstFormat == MESA_FORMAT_RGBA_FXT1);
if (srcFormat != GL_RGBA ||
srcType != GL_UNSIGNED_BYTE ||
ctx->_ImageTransferState ||
srcPacking->SwapBytes) {
/* convert image to RGBA/GLubyte */
- tempImage = _mesa_make_temp_ubyte_image(ctx, dims,
- baseInternalFormat,
- _mesa_get_format_base_format(dstFormat),
- srcWidth, srcHeight, srcDepth,
- srcFormat, srcType, srcAddr,
- srcPacking);
+ GLubyte *tempImageSlices[1];
+ int rgbaRowStride = 4 * srcWidth * sizeof(GLubyte);
+ tempImage = malloc(srcWidth * srcHeight * 4 * sizeof(GLubyte));
if (!tempImage)
return GL_FALSE; /* out of memory */
+ tempImageSlices[0] = (GLubyte *) tempImage;
+ _mesa_texstore(ctx, dims,
+ baseInternalFormat,
+ _mesa_little_endian() ? MESA_FORMAT_R8G8B8A8_UNORM
+ : MESA_FORMAT_A8B8G8R8_UNORM,
+ rgbaRowStride, tempImageSlices,
+ srcWidth, srcHeight, srcDepth,
+ srcFormat, srcType, srcAddr,
+ srcPacking);
pixels = tempImage;
srcRowStride = 4 * srcWidth;
srcFormat = GL_RGBA;
}
-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 GLubyte and convert to float here */
- GLubyte rgba[4];
- (void) k;
- fxt1_decode_1(texImage->Map, texImage->RowStride, i, j, rgba);
- 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]);
-}
-
-
-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 GLubyte and convert to float here */
- GLubyte rgba[4];
- (void) k;
- fxt1_decode_1(texImage->Map, texImage->RowStride, i, j, rgba);
- 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;
-}
-
-
-
/***************************************************************************\
* FXT1 encoder
*
#define LL_RMS_D 10 /* fault tolerance (maximum delta) */
#define LL_RMS_E 255 /* fault tolerance (maximum error) */
#define ALPHA_TS 2 /* alpha threshold: (255 - ALPHA_TS) deemed opaque */
-#define ISTBLACK(v) (*((GLuint *)(v)) == 0)
-
+static const GLuint zero = 0;
+#define ISTBLACK(v) (memcmp(&(v), &zero, sizeof(zero)) == 0)
/*
* Define a 64-bit unsigned integer type and macros
{
GLint i, j, k;
- ASSERT(outWidth >= inWidth);
- ASSERT(outHeight >= inHeight);
+ 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);
+ assert(inWidth == 1 || inWidth == 2 || inHeight == 1 || inHeight == 2);
+ assert((outWidth & 3) == 0);
+ assert((outHeight & 3) == 0);
#endif
for (i = 0; i < outHeight; i++) {
decode_1[mode](code, t, rgba);
}
+
+
+
+
+static void
+fetch_rgb_fxt1(const GLubyte *map,
+ GLint rowStride, GLint i, GLint j, GLfloat *texel)
+{
+ GLubyte rgba[4];
+ fxt1_decode_1(map, rowStride, i, j, rgba);
+ 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;
+}
+
+
+static void
+fetch_rgba_fxt1(const GLubyte *map,
+ GLint rowStride, GLint i, GLint j, GLfloat *texel)
+{
+ GLubyte rgba[4];
+ fxt1_decode_1(map, rowStride, i, j, rgba);
+ 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]);
+}
+
+
+compressed_fetch_func
+_mesa_get_fxt_fetch_func(mesa_format format)
+{
+ switch (format) {
+ case MESA_FORMAT_RGB_FXT1:
+ return fetch_rgb_fxt1;
+ case MESA_FORMAT_RGBA_FXT1:
+ return fetch_rgba_fxt1;
+ default:
+ return NULL;
+ }
+}