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-rw-r--r--progs/tests/texcompress2.c23
-rw-r--r--src/gallium/auxiliary/util/Makefile1
-rw-r--r--src/gallium/auxiliary/util/SConscript1
-rw-r--r--src/gallium/auxiliary/util/u_surface.c113
-rw-r--r--src/gallium/auxiliary/util/u_surface.h52
-rw-r--r--src/mesa/main/texcompress_s3tc.c16
-rw-r--r--src/mesa/state_tracker/st_cb_texture.c266
-rw-r--r--src/mesa/state_tracker/st_format.c20
-rw-r--r--src/mesa/state_tracker/st_format.h4
9 files changed, 480 insertions, 16 deletions
diff --git a/progs/tests/texcompress2.c b/progs/tests/texcompress2.c
index cbb8f1d3a22..b95aca9fb98 100644
--- a/progs/tests/texcompress2.c
+++ b/progs/tests/texcompress2.c
@@ -51,7 +51,6 @@ TestSubTex(void)
GLboolean all = 0*GL_TRUE;
GLubyte *buffer;
GLint size, fmt;
- int i;
glGetTexLevelParameteriv(Target, 0,
GL_TEXTURE_COMPRESSED_IMAGE_SIZE_ARB, &size);
@@ -83,6 +82,23 @@ TestSubTex(void)
static void
+TestGetTex(void)
+{
+ GLubyte *buffer;
+
+ buffer = (GLubyte *) malloc(3 * ImgWidth * ImgHeight);
+
+ glGetTexImage(GL_TEXTURE_2D,
+ 0,
+ GL_RGB,
+ GL_UNSIGNED_BYTE,
+ buffer);
+
+ free(buffer);
+}
+
+
+static void
LoadCompressedImage(const char *file)
{
const GLenum filter = GL_LINEAR;
@@ -146,7 +162,10 @@ LoadCompressedImage(const char *file)
glTexParameteri(Target, GL_TEXTURE_MIN_FILTER, filter);
glTexParameteri(Target, GL_TEXTURE_MAG_FILTER, filter);
- TestSubTex();
+ if (0)
+ TestSubTex();
+ else
+ TestGetTex();
}
diff --git a/src/gallium/auxiliary/util/Makefile b/src/gallium/auxiliary/util/Makefile
index 5035e9cc133..2995aba1b91 100644
--- a/src/gallium/auxiliary/util/Makefile
+++ b/src/gallium/auxiliary/util/Makefile
@@ -23,6 +23,7 @@ C_SOURCES = \
u_snprintf.c \
u_stream_stdc.c \
u_stream_wd.c \
+ u_surface.c \
u_tile.c \
u_time.c \
u_timed_winsys.c \
diff --git a/src/gallium/auxiliary/util/SConscript b/src/gallium/auxiliary/util/SConscript
index 8317263bb8b..d3ac7f747fd 100644
--- a/src/gallium/auxiliary/util/SConscript
+++ b/src/gallium/auxiliary/util/SConscript
@@ -24,6 +24,7 @@ util = env.ConvenienceLibrary(
'u_snprintf.c',
'u_stream_stdc.c',
'u_stream_wd.c',
+ 'u_surface.c',
'u_tile.c',
'u_time.c',
'u_timed_winsys.c',
diff --git a/src/gallium/auxiliary/util/u_surface.c b/src/gallium/auxiliary/util/u_surface.c
new file mode 100644
index 00000000000..85e443204e3
--- /dev/null
+++ b/src/gallium/auxiliary/util/u_surface.c
@@ -0,0 +1,113 @@
+/**************************************************************************
+ *
+ * Copyright 2009 VMware, Inc. All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * 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 NON-INFRINGEMENT.
+ * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS 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.
+ *
+ **************************************************************************/
+
+/**
+ * @file
+ * Surface utility functions.
+ *
+ * @author Brian Paul
+ */
+
+
+#include "pipe/p_screen.h"
+#include "pipe/p_state.h"
+#include "pipe/p_defines.h"
+
+#include "util/u_surface.h"
+
+
+/**
+ * Helper to quickly create an RGBA rendering surface of a certain size.
+ * \param textureOut returns the new texture
+ * \param surfaceOut returns the new surface
+ * \return TRUE for success, FALSE if failure
+ */
+boolean
+util_create_rgba_surface(struct pipe_screen *screen,
+ uint width, uint height,
+ struct pipe_texture **textureOut,
+ struct pipe_surface **surfaceOut)
+{
+ static const enum pipe_format rgbaFormats[] = {
+ PIPE_FORMAT_A8R8G8B8_UNORM,
+ PIPE_FORMAT_B8G8R8A8_UNORM,
+ PIPE_FORMAT_R8G8B8A8_UNORM,
+ PIPE_FORMAT_NONE
+ };
+ const uint target = PIPE_TEXTURE_2D;
+ const uint usage = PIPE_TEXTURE_USAGE_RENDER_TARGET;
+ enum pipe_format format = PIPE_FORMAT_NONE;
+ struct pipe_texture templ;
+ uint i;
+
+ /* Choose surface format */
+ for (i = 0; rgbaFormats[i]; i++) {
+ if (screen->is_format_supported(screen, rgbaFormats[i],
+ target, usage, 0)) {
+ format = rgbaFormats[i];
+ break;
+ }
+ }
+ if (format == PIPE_FORMAT_NONE)
+ return FALSE; /* unable to get an rgba format!?! */
+
+ /* create texture */
+ memset(&templ, 0, sizeof(templ));
+ templ.target = target;
+ templ.format = format;
+ templ.last_level = 0;
+ templ.width[0] = width;
+ templ.height[0] = height;
+ templ.depth[0] = 1;
+ pf_get_block(format, &templ.block);
+ templ.tex_usage = usage;
+
+ *textureOut = screen->texture_create(screen, &templ);
+ if (!*textureOut)
+ return FALSE;
+
+ /* create surface / view into texture */
+ *surfaceOut = screen->get_tex_surface(screen, *textureOut, 0, 0, 0, PIPE_BUFFER_USAGE_GPU_WRITE);
+ if (!*surfaceOut) {
+ pipe_texture_reference(textureOut, NULL);
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
+
+/**
+ * Release the surface and texture from util_create_rgba_surface().
+ */
+void
+util_destroy_rgba_surface(struct pipe_texture *texture,
+ struct pipe_surface *surface)
+{
+ pipe_surface_reference(&surface, NULL);
+ pipe_texture_reference(&texture, NULL);
+}
+
diff --git a/src/gallium/auxiliary/util/u_surface.h b/src/gallium/auxiliary/util/u_surface.h
new file mode 100644
index 00000000000..a5b73cfc20a
--- /dev/null
+++ b/src/gallium/auxiliary/util/u_surface.h
@@ -0,0 +1,52 @@
+/**************************************************************************
+ *
+ * Copyright 2009 VMware, Inc. All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * 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 NON-INFRINGEMENT.
+ * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS 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.
+ *
+ **************************************************************************/
+
+
+#ifndef U_SURFACE_H
+#define U_SURFACE_H
+
+
+#include "pipe/p_compiler.h"
+
+
+struct pipe_screen;
+struct pipe_texture;
+struct pipe_surface;
+
+
+extern boolean
+util_create_rgba_surface(struct pipe_screen *screen,
+ uint width, uint height,
+ struct pipe_texture **textureOut,
+ struct pipe_surface **surfaceOut);
+
+
+extern void
+util_destroy_rgba_surface(struct pipe_texture *texture,
+ struct pipe_surface *surface);
+
+
+#endif /* U_SURFACE_H */
diff --git a/src/mesa/main/texcompress_s3tc.c b/src/mesa/main/texcompress_s3tc.c
index d17e18da6b5..a1c0f18f36f 100644
--- a/src/mesa/main/texcompress_s3tc.c
+++ b/src/mesa/main/texcompress_s3tc.c
@@ -205,7 +205,7 @@ texstore_rgb_dxt1(TEXSTORE_PARAMS)
dst, dstRowStride);
}
else {
- _mesa_warning(ctx, "external dxt library not available");
+ _mesa_warning(ctx, "external dxt library not available: texstore_rgb_dxt1");
}
if (tempImage)
@@ -267,7 +267,7 @@ texstore_rgba_dxt1(TEXSTORE_PARAMS)
dst, dstRowStride);
}
else {
- _mesa_warning(ctx, "external dxt library not available");
+ _mesa_warning(ctx, "external dxt library not available: texstore_rgba_dxt1");
}
if (tempImage)
@@ -328,7 +328,7 @@ texstore_rgba_dxt3(TEXSTORE_PARAMS)
dst, dstRowStride);
}
else {
- _mesa_warning(ctx, "external dxt library not available");
+ _mesa_warning(ctx, "external dxt library not available: texstore_rgba_dxt3");
}
if (tempImage)
@@ -389,7 +389,7 @@ texstore_rgba_dxt5(TEXSTORE_PARAMS)
dst, dstRowStride);
}
else {
- _mesa_warning(ctx, "external dxt library not available");
+ _mesa_warning(ctx, "external dxt library not available: texstore_rgba_dxt5");
}
if (tempImage)
@@ -410,7 +410,7 @@ fetch_texel_2d_rgb_dxt1( const struct gl_texture_image *texImage,
(GLubyte *)(texImage)->Data, i, j, texel);
}
else
- _mesa_debug(NULL, "attempted to decode s3tc texture without library available\n");
+ _mesa_debug(NULL, "attempted to decode s3tc texture without library available: fetch_texel_2d_rgb_dxt1");
}
@@ -438,7 +438,7 @@ fetch_texel_2d_rgba_dxt1( const struct gl_texture_image *texImage,
(GLubyte *)(texImage)->Data, i, j, texel);
}
else
- _mesa_debug(NULL, "attempted to decode s3tc texture without library available\n");
+ _mesa_debug(NULL, "attempted to decode s3tc texture without library available: fetch_texel_2d_rgba_dxt1\n");
}
@@ -467,7 +467,7 @@ fetch_texel_2d_rgba_dxt3( const struct gl_texture_image *texImage,
i, j, texel);
}
else
- _mesa_debug(NULL, "attempted to decode s3tc texture without library available\n");
+ _mesa_debug(NULL, "attempted to decode s3tc texture without library available: fetch_texel_2d_rgba_dxt3\n");
}
@@ -495,7 +495,7 @@ fetch_texel_2d_rgba_dxt5( const struct gl_texture_image *texImage,
i, j, texel);
}
else
- _mesa_debug(NULL, "attempted to decode s3tc texture without library available\n");
+ _mesa_debug(NULL, "attempted to decode s3tc texture without library available: fetch_texel_2d_rgba_dxt5\n");
}
diff --git a/src/mesa/state_tracker/st_cb_texture.c b/src/mesa/state_tracker/st_cb_texture.c
index 727432d7ded..98dc6ec74d1 100644
--- a/src/mesa/state_tracker/st_cb_texture.c
+++ b/src/mesa/state_tracker/st_cb_texture.c
@@ -26,6 +26,7 @@
**************************************************************************/
#include "main/mfeatures.h"
+#include "main/bufferobj.h"
#if FEATURE_convolve
#include "main/convolve.h"
#endif
@@ -55,6 +56,7 @@
#include "pipe/p_inlines.h"
#include "util/u_tile.h"
#include "util/u_blit.h"
+#include "util/u_surface.h"
#define DBG if (0) printf
@@ -110,6 +112,25 @@ compressed_num_bytes(GLuint mesaFormat)
}
+static GLboolean
+is_compressed_mesa_format(const struct gl_texture_format *format)
+{
+ switch (format->MesaFormat) {
+ case MESA_FORMAT_RGB_DXT1:
+ case MESA_FORMAT_RGBA_DXT1:
+ case MESA_FORMAT_RGBA_DXT3:
+ case MESA_FORMAT_RGBA_DXT5:
+ case MESA_FORMAT_SRGB_DXT1:
+ case MESA_FORMAT_SRGBA_DXT1:
+ case MESA_FORMAT_SRGBA_DXT3:
+ case MESA_FORMAT_SRGBA_DXT5:
+ return GL_TRUE;
+ default:
+ return GL_FALSE;
+ }
+}
+
+
/** called via ctx->Driver.NewTextureImage() */
static struct gl_texture_image *
st_NewTextureImage(GLcontext * ctx)
@@ -379,6 +400,110 @@ strip_texture_border(GLint border,
/**
+ * Try to do texture compression via rendering. If the Gallium driver
+ * can render into a compressed surface this will allow us to do texture
+ * compression.
+ * \return GL_TRUE for success, GL_FALSE for failure
+ */
+static GLboolean
+compress_with_blit(GLcontext * ctx,
+ GLenum target, GLint level,
+ GLint xoffset, GLint yoffset, GLint zoffset,
+ GLint width, GLint height, GLint depth,
+ GLenum format, GLenum type, const void *pixels,
+ const struct gl_pixelstore_attrib *unpack,
+ struct gl_texture_image *texImage)
+{
+ const GLuint dstImageOffsets[1] = {0};
+ struct st_texture_image *stImage = st_texture_image(texImage);
+ struct pipe_screen *screen = ctx->st->pipe->screen;
+ const GLuint face = _mesa_tex_target_to_face(target);
+ const struct gl_texture_format *mesa_format;
+ struct pipe_texture templ;
+ struct pipe_texture *src_tex;
+ struct pipe_surface *dst_surface;
+ struct pipe_transfer *tex_xfer;
+ void *map;
+
+
+ if (!stImage->pt) {
+ /* XXX: Can this happen? Should we assert? */
+ return GL_FALSE;
+ }
+
+ /* get destination surface (in the compressed texture) */
+ dst_surface = screen->get_tex_surface(screen, stImage->pt,
+ stImage->face, stImage->level, 0,
+ PIPE_BUFFER_USAGE_GPU_WRITE);
+ if (!dst_surface) {
+ /* can't render into this format (or other problem) */
+ return GL_FALSE;
+ }
+
+ /* Choose format for the temporary RGBA texture image.
+ */
+ mesa_format = st_ChooseTextureFormat(ctx, GL_RGBA, format, type);
+ assert(mesa_format);
+ if (!mesa_format)
+ return GL_FALSE;
+
+ /* Create the temporary source texture
+ */
+ memset(&templ, 0, sizeof(templ));
+ templ.target = PIPE_TEXTURE_2D;
+ templ.format = st_mesa_format_to_pipe_format(mesa_format->MesaFormat);
+ pf_get_block(templ.format, &templ.block);
+ templ.width[0] = width;
+ templ.height[0] = height;
+ templ.depth[0] = 1;
+ templ.last_level = 0;
+ templ.tex_usage = PIPE_TEXTURE_USAGE_SAMPLER;
+ src_tex = screen->texture_create(screen, &templ);
+
+ if (!src_tex)
+ return GL_FALSE;
+
+ /* Put user's tex data into the temporary texture
+ */
+ tex_xfer = screen->get_tex_transfer(screen, src_tex,
+ face, level, 0,
+ PIPE_TRANSFER_WRITE,
+ 0, 0, width, height); /* x, y, w, h */
+ map = screen->transfer_map(screen, tex_xfer);
+
+ mesa_format->StoreImage(ctx, 2, GL_RGBA, mesa_format,
+ map, /* dest ptr */
+ 0, 0, 0, /* dest x/y/z offset */
+ tex_xfer->stride, /* dest row stride (bytes) */
+ dstImageOffsets, /* image offsets (for 3D only) */
+ width, height, 1, /* size */
+ format, type, /* source format/type */
+ pixels, /* source data */
+ unpack); /* source data packing */
+
+ screen->transfer_unmap(screen, tex_xfer);
+ screen->tex_transfer_destroy(tex_xfer);
+
+ /* copy / compress image */
+ util_blit_pixels_tex(ctx->st->blit,
+ src_tex, /* pipe_texture (src) */
+ 0, 0, /* src x0, y0 */
+ width, height, /* src x1, y1 */
+ dst_surface, /* pipe_surface (dst) */
+ xoffset, yoffset, /* dst x0, y0 */
+ xoffset + width, /* dst x1 */
+ yoffset + height, /* dst y1 */
+ 0.0, /* z */
+ PIPE_TEX_MIPFILTER_NEAREST);
+
+ pipe_surface_reference(&dst_surface, NULL);
+ pipe_texture_reference(&src_tex, NULL);
+
+ return GL_TRUE;
+}
+
+
+/**
* Do glTexImage1/2/3D().
*/
static void
@@ -392,8 +517,9 @@ st_TexImage(GLcontext * ctx,
const struct gl_pixelstore_attrib *unpack,
struct gl_texture_object *texObj,
struct gl_texture_image *texImage,
- GLsizei imageSize, GLboolean compressed)
+ GLsizei imageSize, GLboolean compressed_src)
{
+ struct pipe_screen *screen = ctx->st->pipe->screen;
struct st_texture_object *stObj = st_texture_object(texObj);
struct st_texture_image *stImage = st_texture_image(texImage);
GLint postConvWidth, postConvHeight;
@@ -522,7 +648,7 @@ st_TexImage(GLcontext * ctx,
* the expectation that the texture will be set up but nothing
* more will be done. This is where those calls return:
*/
- if (compressed) {
+ if (compressed_src) {
pixels = _mesa_validate_pbo_compressed_teximage(ctx, imageSize, pixels,
unpack,
"glCompressedTexImage");
@@ -535,6 +661,21 @@ st_TexImage(GLcontext * ctx,
if (!pixels)
return;
+ /* See if we can do texture compression with a blit/render.
+ */
+ if (!compressed_src &&
+ !ctx->Mesa_DXTn &&
+ is_compressed_mesa_format(texImage->TexFormat) &&
+ screen->is_format_supported(screen,
+ stImage->pt->format,
+ stImage->pt->target,
+ PIPE_TEXTURE_USAGE_RENDER_TARGET, 0)) {
+ if (compress_with_blit(ctx, target, level, 0, 0, 0, width, height, depth,
+ format, type, pixels, unpack, texImage)) {
+ return;
+ }
+ }
+
if (stImage->pt) {
texImage->Data = st_texture_image_map(ctx->st, stImage, 0,
PIPE_TRANSFER_WRITE, 0, 0,
@@ -570,7 +711,7 @@ st_TexImage(GLcontext * ctx,
* the blitter to copy. Or, use the hardware to do the format
* conversion and copy:
*/
- if (compressed) {
+ if (compressed_src) {
memcpy(texImage->Data, pixels, imageSize);
}
else {
@@ -607,7 +748,7 @@ st_TexImage(GLcontext * ctx,
_mesa_unmap_teximage_pbo(ctx, unpack);
- if (stImage->pt) {
+ if (stImage->pt && texImage->Data) {
st_texture_image_unmap(ctx->st, stImage);
texImage->Data = NULL;
}
@@ -678,6 +819,90 @@ st_CompressedTexImage2D(GLcontext *ctx, GLenum target, GLint level,
}
+
+/**
+ * glGetTexImage() helper: decompress a compressed texture by rendering
+ * a textured quad. Store the results in the user's buffer.
+ */
+static void
+decompress_with_blit(GLcontext * ctx, GLenum target, GLint level,
+ GLenum format, GLenum type, GLvoid *pixels,
+ struct gl_texture_object *texObj,
+ struct gl_texture_image *texImage)
+{
+ struct pipe_screen *screen = ctx->st->pipe->screen;
+ struct st_texture_image *stImage = st_texture_image(texImage);
+ const GLuint width = texImage->Width;
+ const GLuint height = texImage->Height;
+ struct pipe_surface *dst_surface;
+ struct pipe_texture *dst_texture;
+ struct pipe_transfer *tex_xfer;
+
+ /* create temp / dest surface */
+ if (!util_create_rgba_surface(screen, width, height,
+ &dst_texture, &dst_surface)) {
+ _mesa_problem(ctx, "util_create_rgba_surface() failed "
+ "in decompress_with_blit()");
+ return;
+ }
+
+ /* blit/render/decompress */
+ util_blit_pixels_tex(ctx->st->blit,
+ stImage->pt, /* pipe_texture (src) */
+ 0, 0, /* src x0, y0 */
+ width, height, /* src x1, y1 */
+ dst_surface, /* pipe_surface (dst) */
+ 0, 0, /* dst x0, y0 */
+ width, height, /* dst x1, y1 */
+ 0.0, /* z */
+ PIPE_TEX_MIPFILTER_NEAREST);
+
+ /* map the dst_surface so we can read from it */
+ tex_xfer = screen->get_tex_transfer(screen, dst_texture, 0, 0, 0,
+ PIPE_TRANSFER_READ,
+ 0, 0, width, height);
+
+ pixels = _mesa_map_readpix_pbo(ctx, &ctx->Pack, pixels);
+
+ /* copy/pack data into user buffer */
+ if (st_equal_formats(stImage->pt->format, format, type)) {
+ /* memcpy */
+ const uint bytesPerRow = width * pf_get_size(stImage->pt->format);
+ ubyte *map = screen->transfer_map(screen, tex_xfer);
+ GLuint row;
+ for (row = 0; row < height; row++) {
+ GLvoid *dest = _mesa_image_address2d(&ctx->Pack, pixels, width,
+ height, format, type, row, 0);
+ memcpy(dest, map, bytesPerRow);
+ map += tex_xfer->stride;
+ }
+ screen->transfer_unmap(screen, tex_xfer);
+ }
+ else {
+ /* format translation via floats */
+ GLuint row;
+ for (row = 0; row < height; row++) {
+ const GLbitfield transferOps = 0x0; /* bypassed for glGetTexImage() */
+ GLfloat rgba[4 * MAX_WIDTH];
+ GLvoid *dest = _mesa_image_address2d(&ctx->Pack, pixels, width,
+ height, format, type, row, 0);
+
+ /* get float[4] rgba row from surface */
+ pipe_get_tile_rgba(tex_xfer, 0, row, width, 1, rgba);
+
+ _mesa_pack_rgba_span_float(ctx, width, (GLfloat (*)[4]) rgba, format,
+ type, dest, &ctx->Pack, transferOps);
+ }
+ }
+
+ _mesa_unmap_readpix_pbo(ctx, &ctx->Pack);
+
+ /* destroy the temp / dest surface */
+ util_destroy_rgba_surface(dst_texture, dst_surface);
+}
+
+
+
/**
* Need to map texture image into memory before copying image data,
* then unmap it.
@@ -686,7 +911,7 @@ static void
st_get_tex_image(GLcontext * ctx, GLenum target, GLint level,
GLenum format, GLenum type, GLvoid * pixels,
struct gl_texture_object *texObj,
- struct gl_texture_image *texImage, GLboolean compressed)
+ struct gl_texture_image *texImage, GLboolean compressed_dst)
{
struct st_texture_image *stImage = st_texture_image(texImage);
const GLuint dstImageStride =
@@ -695,6 +920,18 @@ st_get_tex_image(GLcontext * ctx, GLenum target, GLint level,
GLuint depth, i;
GLubyte *dest;
+ if (stImage->pt &&
+ pf_is_compressed(stImage->pt->format) &&
+ !compressed_dst) {
+ /* Need to decompress the texture.
+ * We'll do this by rendering a textured quad.
+ * Note that we only expect RGBA formats (no Z/depth formats).
+ */
+ decompress_with_blit(ctx, target, level, format, type, pixels,
+ texObj, texImage);
+ return;
+ }
+
/* Map */
if (stImage->pt) {
/* Image is stored in hardware format in a buffer managed by the
@@ -728,7 +965,7 @@ st_get_tex_image(GLcontext * ctx, GLenum target, GLint level,
dest = (GLubyte *) pixels;
for (i = 0; i < depth; i++) {
- if (compressed) {
+ if (compressed_dst) {
_mesa_get_compressed_teximage(ctx, target, level, dest,
texObj, texImage);
}
@@ -791,6 +1028,7 @@ st_TexSubimage(GLcontext *ctx, GLint dims, GLenum target, GLint level,
struct gl_texture_object *texObj,
struct gl_texture_image *texImage)
{
+ struct pipe_screen *screen = ctx->st->pipe->screen;
struct st_texture_image *stImage = st_texture_image(texImage);
GLuint dstRowStride;
const GLuint srcImageStride =
@@ -808,6 +1046,22 @@ st_TexSubimage(GLcontext *ctx, GLint dims, GLenum target, GLint level,
if (!pixels)
return;
+ /* See if we can do texture compression with a blit/render.
+ */
+ if (!ctx->Mesa_DXTn &&
+ is_compressed_mesa_format(texImage->TexFormat) &&
+ screen->is_format_supported(screen,
+ stImage->pt->format,
+ stImage->pt->target,
+ PIPE_TEXTURE_USAGE_RENDER_TARGET, 0)) {
+ if (compress_with_blit(ctx, target, level,
+ xoffset, yoffset, zoffset,
+ width, height, depth,
+ format, type, pixels, packing, texImage)) {
+ return;
+ }
+ }
+
/* Map buffer if necessary. Need to lock to prevent other contexts
* from uploading the buffer under us.
*/
diff --git a/src/mesa/state_tracker/st_format.c b/src/mesa/state_tracker/st_format.c
index 9e2d60c9269..d507e3e58dd 100644
--- a/src/mesa/state_tracker/st_format.c
+++ b/src/mesa/state_tracker/st_format.c
@@ -716,3 +716,23 @@ st_ChooseTextureFormat(GLcontext *ctx, GLint internalFormat,
return translate_gallium_format_to_mesa_format(pFormat);
}
+
+
+/**
+ * Test if a gallium format is equivalent to a GL format/type.
+ */
+GLboolean
+st_equal_formats(enum pipe_format pFormat, GLenum format, GLenum type)
+{
+ switch (pFormat) {
+ case PIPE_FORMAT_R8G8B8A8_UNORM:
+ return format == GL_RGBA && type == GL_UNSIGNED_BYTE;
+ case PIPE_FORMAT_B8G8R8A8_UNORM:
+ return format == GL_BGRA && type == GL_UNSIGNED_BYTE;
+ case PIPE_FORMAT_R5G6B5_UNORM:
+ return format == GL_RGB && type == GL_UNSIGNED_SHORT_5_6_5;
+ /* XXX more combos... */
+ default:
+ return GL_FALSE;
+ }
+}
diff --git a/src/mesa/state_tracker/st_format.h b/src/mesa/state_tracker/st_format.h
index 3f5ac3201b1..7bbbe2d5704 100644
--- a/src/mesa/state_tracker/st_format.h
+++ b/src/mesa/state_tracker/st_format.h
@@ -76,4 +76,8 @@ st_ChooseTextureFormat(GLcontext * ctx, GLint internalFormat,
GLenum format, GLenum type);
+extern GLboolean
+st_equal_formats(enum pipe_format pFormat, GLenum format, GLenum type);
+
+
#endif /* ST_CB_TEXIMAGE_H */
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-13 17:05:33 +0000