/*
* 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 "errors.h"
#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"
-
-
-#if FEATURE_texture_fxt1
+#include "mtypes.h"
static void
const void *source, GLint srcRowStride,
void *dest, GLint destRowStride);
-void
+static void
fxt1_decode_1 (const void *texture, GLint stride,
GLint i, GLint j, GLubyte *rgba);
const GLubyte *pixels;
GLint srcRowStride;
GLubyte *dst;
- const GLint texWidth = dstRowStride * 8 / 16; /* a bit of a hack */
const GLubyte *tempImage = NULL;
- ASSERT(dstFormat == MESA_FORMAT_RGB_FXT1);
- ASSERT(dstXoffset % 8 == 0);
- ASSERT(dstYoffset % 4 == 0);
- ASSERT(dstZoffset == 0);
- (void) dstZoffset;
- (void) dstImageOffsets;
+ assert(dstFormat == MESA_FORMAT_RGB_FXT1);
if (srcFormat != GL_RGB ||
srcType != GL_UNSIGNED_BYTE ||
ctx->_ImageTransferState ||
+ 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;
}
else {
- pixels = (const GLubyte *) srcAddr;
+ pixels = _mesa_image_address2d(srcPacking, srcAddr, srcWidth, srcHeight,
+ srcFormat, srcType, 0, 0);
+
srcRowStride = _mesa_image_row_stride(srcPacking, srcWidth, srcFormat,
srcType) / sizeof(GLubyte);
}
- dst = _mesa_compressed_image_address(dstXoffset, dstYoffset, 0,
- dstFormat,
- texWidth, (GLubyte *) dstAddr);
+ dst = dstSlices[0];
fxt1_encode(srcWidth, srcHeight, 3, pixels, srcRowStride,
dst, dstRowStride);
- if (tempImage)
- free((void*) tempImage);
+ free((void*) tempImage);
return GL_TRUE;
}
const GLubyte *pixels;
GLint srcRowStride;
GLubyte *dst;
- GLint texWidth = dstRowStride * 8 / 16; /* a bit of a hack */
const GLubyte *tempImage = NULL;
- ASSERT(dstFormat == MESA_FORMAT_RGBA_FXT1);
- ASSERT(dstXoffset % 8 == 0);
- ASSERT(dstYoffset % 4 == 0);
- ASSERT(dstZoffset == 0);
- (void) dstZoffset;
- (void) dstImageOffsets;
+ 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,
+#if UTIL_ARCH_LITTLE_ENDIAN
+ MESA_FORMAT_R8G8B8A8_UNORM,
+#else
+ MESA_FORMAT_A8B8G8R8_UNORM,
+#endif
+ rgbaRowStride, tempImageSlices,
+ srcWidth, srcHeight, srcDepth,
+ srcFormat, srcType, srcAddr,
+ srcPacking);
pixels = tempImage;
srcRowStride = 4 * srcWidth;
srcFormat = GL_RGBA;
}
else {
- pixels = (const GLubyte *) srcAddr;
+ pixels = _mesa_image_address2d(srcPacking, srcAddr, srcWidth, srcHeight,
+ srcFormat, srcType, 0, 0);
+
srcRowStride = _mesa_image_row_stride(srcPacking, srcWidth, srcFormat,
srcType) / sizeof(GLubyte);
}
- dst = _mesa_compressed_image_address(dstXoffset, dstYoffset, 0,
- dstFormat,
- texWidth, (GLubyte *) dstAddr);
+ dst = dstSlices[0];
fxt1_encode(srcWidth, srcHeight, 4, pixels, srcRowStride,
dst, dstRowStride);
- if (tempImage)
- free((void*) tempImage);
+ free((void*) tempImage);
return GL_TRUE;
}
-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->Base.Data, texImage->Base.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->Base.Data, texImage->Base.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++) {
}
cleanUp:
- if (newSource != NULL) {
- free(newSource);
- }
+ free(newSource);
}
}
-void
+static void
fxt1_decode_1 (const void *texture, GLint stride, /* in pixels */
GLint i, GLint j, GLubyte *rgba)
{
}
-#endif /* FEATURE_texture_fxt1 */
+
+
+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;
+ }
+}
projects / mesa.git / blobdiff