#include "mfeatures.h"
#include "mtypes.h"
#include "texcompress.h"
+#include "texcompress_fxt1.h"
+#include "texcompress_rgtc.h"
+#include "texcompress_s3tc.h"
+#include "texcompress_etc.h"
+#include "swrast/s_context.h"
/**
case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
case GL_COMPRESSED_RGB_FXT1_3DFX:
case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
+ case GL_ETC1_RGB8_OES:
return GL_RGB;
case GL_COMPRESSED_RGBA:
n += 4;
}
}
- return n;
-#if FEATURE_ES1 || FEATURE_ES2
- if (formats) {
- formats[n++] = GL_PALETTE4_RGB8_OES;
- formats[n++] = GL_PALETTE4_RGBA8_OES;
- formats[n++] = GL_PALETTE4_R5_G6_B5_OES;
- formats[n++] = GL_PALETTE4_RGBA4_OES;
- formats[n++] = GL_PALETTE4_RGB5_A1_OES;
- formats[n++] = GL_PALETTE8_RGB8_OES;
- formats[n++] = GL_PALETTE8_RGBA8_OES;
- formats[n++] = GL_PALETTE8_R5_G6_B5_OES;
- formats[n++] = GL_PALETTE8_RGBA4_OES;
- formats[n++] = GL_PALETTE8_RGB5_A1_OES;
+ if (ctx->Extensions.OES_compressed_ETC1_RGB8_texture) {
+ if (formats) {
+ formats[n++] = GL_ETC1_RGB8_OES;
+ }
+ else {
+ n += 1;
+ }
}
- else {
- n += 10;
+
+ if (ctx->API == API_OPENGLES) {
+ if (formats) {
+ formats[n++] = GL_PALETTE4_RGB8_OES;
+ formats[n++] = GL_PALETTE4_RGBA8_OES;
+ formats[n++] = GL_PALETTE4_R5_G6_B5_OES;
+ formats[n++] = GL_PALETTE4_RGBA4_OES;
+ formats[n++] = GL_PALETTE4_RGB5_A1_OES;
+ formats[n++] = GL_PALETTE8_RGB8_OES;
+ formats[n++] = GL_PALETTE8_RGBA8_OES;
+ formats[n++] = GL_PALETTE8_R5_G6_B5_OES;
+ formats[n++] = GL_PALETTE8_RGBA4_OES;
+ formats[n++] = GL_PALETTE8_RGB5_A1_OES;
+ }
+ else {
+ n += 10;
+ }
}
-#endif
+
+ return n;
}
case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT:
return MESA_FORMAT_SIGNED_LA_LATC2;
+ case GL_ETC1_RGB8_OES:
+ return MESA_FORMAT_ETC1_RGB8;
+
default:
return MESA_FORMAT_NONE;
}
* internal format unchanged.
*/
GLenum
-_mesa_compressed_format_to_glenum(struct gl_context *ctx, GLuint mesaFormat)
+_mesa_compressed_format_to_glenum(struct gl_context *ctx, gl_format mesaFormat)
{
switch (mesaFormat) {
-#if FEATURE_texture_fxt1
case MESA_FORMAT_RGB_FXT1:
return GL_COMPRESSED_RGB_FXT1_3DFX;
case MESA_FORMAT_RGBA_FXT1:
return GL_COMPRESSED_RGBA_FXT1_3DFX;
-#endif
-#if FEATURE_texture_s3tc
case MESA_FORMAT_RGB_DXT1:
return GL_COMPRESSED_RGB_S3TC_DXT1_EXT;
case MESA_FORMAT_RGBA_DXT1:
return GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
case MESA_FORMAT_RGBA_DXT5:
return GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
-#if FEATURE_EXT_texture_sRGB
case MESA_FORMAT_SRGB_DXT1:
return GL_COMPRESSED_SRGB_S3TC_DXT1_EXT;
case MESA_FORMAT_SRGBA_DXT1:
return GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT;
case MESA_FORMAT_SRGBA_DXT5:
return GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT;
-#endif
-#endif
-
case MESA_FORMAT_RED_RGTC1:
return GL_COMPRESSED_RED_RGTC1;
case MESA_FORMAT_SIGNED_RED_RGTC1:
case MESA_FORMAT_SIGNED_LA_LATC2:
return GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT;
+ case MESA_FORMAT_ETC1_RGB8:
+ return GL_ETC1_RGB8_OES;
+
default:
_mesa_problem(ctx, "Unexpected mesa texture format in"
" _mesa_compressed_format_to_glenum()");
return (GLubyte *) image + offset;
}
+
+
+/**
+ * Decompress a compressed texture image, returning a GL_RGBA/GL_FLOAT image.
+ * \param srcRowStride stride in bytes between rows of blocks in the
+ * compressed source image.
+ */
+void
+_mesa_decompress_image(gl_format format, GLuint width, GLuint height,
+ const GLubyte *src, GLint srcRowStride,
+ GLfloat *dest)
+{
+ void (*fetch)(const struct swrast_texture_image *texImage,
+ GLint i, GLint j, GLint k, GLfloat *texel);
+ struct swrast_texture_image texImage; /* dummy teximage */
+ GLuint i, j;
+ GLuint bytes, bw, bh;
+
+ bytes = _mesa_get_format_bytes(format);
+ _mesa_get_format_block_size(format, &bw, &bh);
+
+ /* setup dummy texture image info */
+ memset(&texImage, 0, sizeof(texImage));
+ texImage.Map = (void *) src;
+
+ /* XXX This line is a bit of a hack to adapt to the row stride
+ * convention used by the texture decompression functions.
+ */
+ texImage.RowStride = srcRowStride * bh / bytes;
+
+ switch (format) {
+ /* DXT formats */
+ case MESA_FORMAT_RGB_DXT1:
+ fetch = _mesa_fetch_texel_rgb_dxt1;
+ break;
+ case MESA_FORMAT_RGBA_DXT1:
+ fetch = _mesa_fetch_texel_rgba_dxt1;
+ break;
+ case MESA_FORMAT_RGBA_DXT3:
+ fetch = _mesa_fetch_texel_rgba_dxt3;
+ break;
+ case MESA_FORMAT_RGBA_DXT5:
+ fetch = _mesa_fetch_texel_rgba_dxt5;
+ break;
+
+ /* FXT1 formats */
+ case MESA_FORMAT_RGB_FXT1:
+ fetch = _mesa_fetch_texel_2d_f_rgb_fxt1;
+ break;
+ case MESA_FORMAT_RGBA_FXT1:
+ fetch = _mesa_fetch_texel_2d_f_rgba_fxt1;
+ break;
+
+ /* Red/RG formats */
+ case MESA_FORMAT_RED_RGTC1:
+ fetch = _mesa_fetch_texel_red_rgtc1;
+ break;
+ case MESA_FORMAT_SIGNED_RED_RGTC1:
+ fetch = _mesa_fetch_texel_signed_red_rgtc1;
+ break;
+ case MESA_FORMAT_RG_RGTC2:
+ fetch = _mesa_fetch_texel_rg_rgtc2;
+ break;
+ case MESA_FORMAT_SIGNED_RG_RGTC2:
+ fetch = _mesa_fetch_texel_signed_rg_rgtc2;
+ break;
+
+ /* L/LA formats */
+ case MESA_FORMAT_L_LATC1:
+ fetch = _mesa_fetch_texel_l_latc1;
+ break;
+ case MESA_FORMAT_SIGNED_L_LATC1:
+ fetch = _mesa_fetch_texel_signed_l_latc1;
+ break;
+ case MESA_FORMAT_LA_LATC2:
+ fetch = _mesa_fetch_texel_la_latc2;
+ break;
+ case MESA_FORMAT_SIGNED_LA_LATC2:
+ fetch = _mesa_fetch_texel_signed_la_latc2;
+ break;
+
+ /* ETC1 formats */
+ case MESA_FORMAT_ETC1_RGB8:
+ fetch = _mesa_fetch_texel_2d_f_etc1_rgb8;
+ break;
+
+ default:
+ _mesa_problem(NULL, "Unexpected format in _mesa_decompress_image()");
+ return;
+ }
+
+ for (j = 0; j < height; j++) {
+ for (i = 0; i < width; i++) {
+ fetch(&texImage, i, j, 0, dest);
+ dest += 4;
+ }
+ }
+}
projects / mesa.git / blobdiff