/*
* Mesa 3-D graphics library
- * Version: 6.5.1
*
* Copyright (C) 1999-2006 Brian Paul All Rights Reserved.
* Copyright (c) 2008 VMware, Inc.
* 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
- * THE AUTHORS 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 "texcompress_rgtc.h"
#include "texcompress_s3tc.h"
#include "texcompress_etc.h"
+#include "texcompress_bptc.h"
/**
case GL_COMPRESSED_RGB:
case GL_COMPRESSED_SRGB:
+ case GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT_ARB:
+ case GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT_ARB:
case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
case GL_COMPRESSED_RGB_FXT1_3DFX:
case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
case GL_COMPRESSED_SRGB_ALPHA:
case GL_COMPRESSED_RGBA_BPTC_UNORM_ARB:
case GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM_ARB:
- case GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT_ARB:
- case GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT_ARB:
case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
* GL_EXT_texture_compression_latc. At the very least, Catalyst 11.6 does not
* expose the 3dc formats through this mechanism.
*
+ * The spec for GL_ARB_texture_compression_bptc doesn't mention whether it
+ * should be included in GL_COMPRESSED_TEXTURE_FORMATS. However as it takes a
+ * very long time to compress the textures in this format it's probably not
+ * very useful as a general format where the GL will have to compress it on
+ * the fly.
+ *
* \param ctx the GL context
* \param formats the resulting format list (may be NULL).
*
else {
n += 3;
}
- }
- if (_mesa_is_desktop_gl(ctx)
- && ctx->Extensions.ANGLE_texture_compression_dxt) {
- if (formats) {
- formats[n++] = GL_RGB_S3TC;
- formats[n++] = GL_RGB4_S3TC;
- formats[n++] = GL_RGBA_S3TC;
- formats[n++] = GL_RGBA4_S3TC;
- }
- else {
- n += 4;
+
+ /* The ES and desktop GL specs diverge here.
+ *
+ * In desktop OpenGL, the driver can perform online compression of
+ * uncompressed texture data. GL_NUM_COMPRESSED_TEXTURE_FORMATS and
+ * GL_COMPRESSED_TEXTURE_FORMATS give the application a list of
+ * formats that it could ask the driver to compress with some
+ * expectation of quality. The GL_ARB_texture_compression spec
+ * calls this "suitable for general-purpose usage." As noted
+ * above, this means GL_COMPRESSED_RGBA_S3TC_DXT1_EXT is not
+ * included in the list.
+ *
+ * In OpenGL ES, the driver never performs compression.
+ * GL_NUM_COMPRESSED_TEXTURE_FORMATS and
+ * GL_COMPRESSED_TEXTURE_FORMATS give the application a list of
+ * formats that the driver can receive from the application. It
+ * is the *complete* list of formats. The
+ * GL_EXT_texture_compression_s3tc spec says:
+ *
+ * "New State for OpenGL ES 2.0.25 and 3.0.2 Specifications
+ *
+ * The queries for NUM_COMPRESSED_TEXTURE_FORMATS and
+ * COMPRESSED_TEXTURE_FORMATS include
+ * COMPRESSED_RGB_S3TC_DXT1_EXT,
+ * COMPRESSED_RGBA_S3TC_DXT1_EXT,
+ * COMPRESSED_RGBA_S3TC_DXT3_EXT, and
+ * COMPRESSED_RGBA_S3TC_DXT5_EXT."
+ *
+ * Note that the addition is only to the OpenGL ES specification!
+ */
+ if (_mesa_is_gles(ctx)) {
+ if (formats) {
+ formats[n++] = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
+ } else {
+ n += 1;
+ }
}
}
- if (ctx->Extensions.OES_compressed_ETC1_RGB8_texture) {
+ /* The GL_OES_compressed_ETC1_RGB8_texture spec says:
+ *
+ * "New State
+ *
+ * The queries for NUM_COMPRESSED_TEXTURE_FORMATS and
+ * COMPRESSED_TEXTURE_FORMATS include ETC1_RGB8_OES."
+ */
+ if (_mesa_is_gles(ctx)
+ && ctx->Extensions.OES_compressed_ETC1_RGB8_texture) {
if (formats) {
formats[n++] = GL_ETC1_RGB8_OES;
}
/**
* Convert a compressed MESA_FORMAT_x to a GLenum.
*/
-gl_format
+mesa_format
_mesa_glenum_to_compressed_format(GLenum format)
{
switch (format) {
return MESA_FORMAT_SRGBA_DXT5;
case GL_COMPRESSED_RED_RGTC1:
- return MESA_FORMAT_RED_RGTC1;
+ return MESA_FORMAT_R_RGTC1_UNORM;
case GL_COMPRESSED_SIGNED_RED_RGTC1:
- return MESA_FORMAT_SIGNED_RED_RGTC1;
+ return MESA_FORMAT_R_RGTC1_SNORM;
case GL_COMPRESSED_RG_RGTC2:
- return MESA_FORMAT_RG_RGTC2;
+ return MESA_FORMAT_RG_RGTC2_UNORM;
case GL_COMPRESSED_SIGNED_RG_RGTC2:
- return MESA_FORMAT_SIGNED_RG_RGTC2;
+ return MESA_FORMAT_RG_RGTC2_SNORM;
case GL_COMPRESSED_LUMINANCE_LATC1_EXT:
- return MESA_FORMAT_L_LATC1;
+ return MESA_FORMAT_L_LATC1_UNORM;
case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT:
- return MESA_FORMAT_SIGNED_L_LATC1;
+ return MESA_FORMAT_L_LATC1_SNORM;
case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT:
case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI:
- return MESA_FORMAT_LA_LATC2;
+ return MESA_FORMAT_LA_LATC2_UNORM;
case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT:
- return MESA_FORMAT_SIGNED_LA_LATC2;
+ return MESA_FORMAT_LA_LATC2_SNORM;
case GL_ETC1_RGB8_OES:
return MESA_FORMAT_ETC1_RGB8;
case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2:
return MESA_FORMAT_ETC2_SRGB8_PUNCHTHROUGH_ALPHA1;
+ case GL_COMPRESSED_RGBA_BPTC_UNORM:
+ return MESA_FORMAT_BPTC_RGBA_UNORM;
+ case GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM:
+ return MESA_FORMAT_BPTC_SRGB_ALPHA_UNORM;
+ case GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT:
+ return MESA_FORMAT_BPTC_RGB_SIGNED_FLOAT;
+ case GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT:
+ return MESA_FORMAT_BPTC_RGB_UNSIGNED_FLOAT;
+
default:
return MESA_FORMAT_NONE;
}
* internal format unchanged.
*/
GLenum
-_mesa_compressed_format_to_glenum(struct gl_context *ctx, gl_format mesaFormat)
+_mesa_compressed_format_to_glenum(struct gl_context *ctx, mesa_format mesaFormat)
{
switch (mesaFormat) {
case MESA_FORMAT_RGB_FXT1:
return GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT;
case MESA_FORMAT_SRGBA_DXT5:
return GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT;
- case MESA_FORMAT_RED_RGTC1:
+ case MESA_FORMAT_R_RGTC1_UNORM:
return GL_COMPRESSED_RED_RGTC1;
- case MESA_FORMAT_SIGNED_RED_RGTC1:
+ case MESA_FORMAT_R_RGTC1_SNORM:
return GL_COMPRESSED_SIGNED_RED_RGTC1;
- case MESA_FORMAT_RG_RGTC2:
+ case MESA_FORMAT_RG_RGTC2_UNORM:
return GL_COMPRESSED_RG_RGTC2;
- case MESA_FORMAT_SIGNED_RG_RGTC2:
+ case MESA_FORMAT_RG_RGTC2_SNORM:
return GL_COMPRESSED_SIGNED_RG_RGTC2;
- case MESA_FORMAT_L_LATC1:
+ case MESA_FORMAT_L_LATC1_UNORM:
return GL_COMPRESSED_LUMINANCE_LATC1_EXT;
- case MESA_FORMAT_SIGNED_L_LATC1:
+ case MESA_FORMAT_L_LATC1_SNORM:
return GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT;
- case MESA_FORMAT_LA_LATC2:
+ case MESA_FORMAT_LA_LATC2_UNORM:
return GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT;
- case MESA_FORMAT_SIGNED_LA_LATC2:
+ case MESA_FORMAT_LA_LATC2_SNORM:
return GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT;
case MESA_FORMAT_ETC1_RGB8:
case MESA_FORMAT_ETC2_SRGB8_PUNCHTHROUGH_ALPHA1:
return GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2;
+ case MESA_FORMAT_BPTC_RGBA_UNORM:
+ return GL_COMPRESSED_RGBA_BPTC_UNORM;
+ case MESA_FORMAT_BPTC_SRGB_ALPHA_UNORM:
+ return GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM;
+ case MESA_FORMAT_BPTC_RGB_SIGNED_FLOAT:
+ return GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT;
+ case MESA_FORMAT_BPTC_RGB_UNSIGNED_FLOAT:
+ return GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT;
+
default:
_mesa_problem(ctx, "Unexpected mesa texture format in"
" _mesa_compressed_format_to_glenum()");
*/
GLubyte *
_mesa_compressed_image_address(GLint col, GLint row, GLint img,
- gl_format mesaFormat,
+ mesa_format mesaFormat,
GLsizei width, const GLubyte *image)
{
/* XXX only 2D images implemented, not 3D */
_mesa_get_format_block_size(mesaFormat, &bw, &bh);
- ASSERT(col % bw == 0);
- ASSERT(row % bh == 0);
+ assert(col % bw == 0);
+ assert(row % bh == 0);
offset = ((width + bw - 1) / bw) * (row / bh) + col / bw;
offset *= blockSize;
* invalid format.
*/
compressed_fetch_func
-_mesa_get_compressed_fetch_func(gl_format format)
+_mesa_get_compressed_fetch_func(mesa_format format)
{
switch (format) {
case MESA_FORMAT_RGB_DXT1:
case MESA_FORMAT_RGB_FXT1:
case MESA_FORMAT_RGBA_FXT1:
return _mesa_get_fxt_fetch_func(format);
- case MESA_FORMAT_RED_RGTC1:
- case MESA_FORMAT_L_LATC1:
- case MESA_FORMAT_SIGNED_RED_RGTC1:
- case MESA_FORMAT_SIGNED_L_LATC1:
- case MESA_FORMAT_RG_RGTC2:
- case MESA_FORMAT_LA_LATC2:
- case MESA_FORMAT_SIGNED_RG_RGTC2:
- case MESA_FORMAT_SIGNED_LA_LATC2:
+ case MESA_FORMAT_R_RGTC1_UNORM:
+ case MESA_FORMAT_L_LATC1_UNORM:
+ case MESA_FORMAT_R_RGTC1_SNORM:
+ case MESA_FORMAT_L_LATC1_SNORM:
+ case MESA_FORMAT_RG_RGTC2_UNORM:
+ case MESA_FORMAT_LA_LATC2_UNORM:
+ case MESA_FORMAT_RG_RGTC2_SNORM:
+ case MESA_FORMAT_LA_LATC2_SNORM:
return _mesa_get_compressed_rgtc_func(format);
case MESA_FORMAT_ETC1_RGB8:
return _mesa_get_etc_fetch_func(format);
+ case MESA_FORMAT_BPTC_RGBA_UNORM:
+ case MESA_FORMAT_BPTC_SRGB_ALPHA_UNORM:
+ case MESA_FORMAT_BPTC_RGB_SIGNED_FLOAT:
+ case MESA_FORMAT_BPTC_RGB_UNSIGNED_FLOAT:
+ return _mesa_get_bptc_fetch_func(format);
default:
return NULL;
}
* compressed source image.
*/
void
-_mesa_decompress_image(gl_format format, GLuint width, GLuint height,
+_mesa_decompress_image(mesa_format format, GLuint width, GLuint height,
const GLubyte *src, GLint srcRowStride,
GLfloat *dest)
{
for (j = 0; j < height; j++) {
for (i = 0; i < width; i++) {
- fetch(src, NULL, stride, i, j, 0, dest);
+ fetch(src, stride, i, j, dest);
dest += 4;
}
}
projects / mesa.git / blobdiff