#include "main/imports.h"
-#include "main/macros.h"
#include "main/mipmap.h"
#include "main/teximage.h"
#include "main/texformat.h"
-#include "shader/prog_instruction.h"
-
#include "pipe/p_context.h"
#include "pipe/p_defines.h"
#include "util/u_inlines.h"
#include "util/u_format.h"
#include "util/u_gen_mipmap.h"
-#include "util/u_math.h"
-
-#include "cso_cache/cso_cache.h"
-#include "cso_cache/cso_context.h"
#include "st_debug.h"
#include "st_context.h"
#include "st_gen_mipmap.h"
-#include "st_texture.h"
#include "st_cb_texture.h"
#include "st_inlines.h"
{
struct pipe_context *pipe = st->pipe;
struct pipe_screen *screen = pipe->screen;
- struct pipe_sampler_view *psv = st_get_texture_sampler_view(stObj);
+ struct pipe_sampler_view *psv = st_get_texture_sampler_view(stObj, pipe);
const uint face = _mesa_tex_target_to_face(target);
assert(target != GL_TEXTURE_3D); /* not done yet */
}
+/**
+ * Helper function to decompress an image. The result is a 32-bpp RGBA
+ * image with stride==width.
+ */
+static void
+decompress_image(enum pipe_format format,
+ const uint8_t *src, uint8_t *dst,
+ unsigned width, unsigned height)
+{
+ const struct util_format_description *desc = util_format_description(format);
+ const uint dst_stride = 4 * width;
+ const uint src_stride = util_format_get_stride(format, width);
+
+ desc->unpack_rgba_8unorm(dst, dst_stride, src, src_stride, width, height);
+}
+
+
+/**
+ * Helper function to compress an image. The source is a 32-bpp RGBA image
+ * with stride==width.
+ */
+static void
+compress_image(enum pipe_format format,
+ const uint8_t *src, uint8_t *dst,
+ unsigned width, unsigned height)
+{
+ const struct util_format_description *desc = util_format_description(format);
+ const uint dst_stride = util_format_get_stride(format, width);
+ const uint src_stride = 4 * width;
+
+ desc->pack_rgba_8unorm(dst, dst_stride, src, src_stride, width, height);
+}
+
+
+/**
+ * Software fallback for generate mipmap levels.
+ */
static void
fallback_generate_mipmap(GLcontext *ctx, GLenum target,
struct gl_texture_object *texObj)
{
- struct pipe_context *pipe = ctx->st->pipe;
- struct pipe_resource *pt = st_get_texobj_texture(texObj);
+ struct pipe_context *pipe = st_context(ctx)->pipe;
+ struct pipe_resource *pt = st_get_texobj_resource(texObj);
const uint baseLevel = texObj->BaseLevel;
const uint lastLevel = pt->last_level;
const uint face = _mesa_tex_target_to_face(target), zslice = 0;
uint dstLevel;
GLenum datatype;
GLuint comps;
+ GLboolean compressed;
if (ST_DEBUG & DEBUG_FALLBACK)
debug_printf("%s: fallback processing\n", __FUNCTION__);
assert(target != GL_TEXTURE_3D); /* not done yet */
- _mesa_format_to_type_and_comps(texObj->Image[face][baseLevel]->TexFormat,
- &datatype, &comps);
+ compressed =
+ _mesa_is_format_compressed(texObj->Image[face][baseLevel]->TexFormat);
+
+ if (compressed) {
+ datatype = GL_UNSIGNED_BYTE;
+ comps = 4;
+ }
+ else {
+ _mesa_format_to_type_and_comps(texObj->Image[face][baseLevel]->TexFormat,
+ &datatype, &comps);
+ assert(comps > 0 && "bad texture format in fallback_generate_mipmap()");
+ }
for (dstLevel = baseLevel + 1; dstLevel <= lastLevel; dstLevel++) {
const uint srcLevel = dstLevel - 1;
+ const uint srcWidth = u_minify(pt->width0, srcLevel);
+ const uint srcHeight = u_minify(pt->height0, srcLevel);
+ const uint srcDepth = u_minify(pt->depth0, srcLevel);
+ const uint dstWidth = u_minify(pt->width0, dstLevel);
+ const uint dstHeight = u_minify(pt->height0, dstLevel);
+ const uint dstDepth = u_minify(pt->depth0, dstLevel);
struct pipe_transfer *srcTrans, *dstTrans;
const ubyte *srcData;
ubyte *dstData;
srcTrans = st_cond_flush_get_tex_transfer(st_context(ctx), pt, face,
srcLevel, zslice,
PIPE_TRANSFER_READ, 0, 0,
- u_minify(pt->width0, srcLevel),
- u_minify(pt->height0, srcLevel));
+ srcWidth, srcHeight);
+
dstTrans = st_cond_flush_get_tex_transfer(st_context(ctx), pt, face,
dstLevel, zslice,
PIPE_TRANSFER_WRITE, 0, 0,
- u_minify(pt->width0, dstLevel),
- u_minify(pt->height0, dstLevel));
+ dstWidth, dstHeight);
srcData = (ubyte *) pipe_transfer_map(pipe, srcTrans);
dstData = (ubyte *) pipe_transfer_map(pipe, dstTrans);
srcStride = srcTrans->stride / util_format_get_blocksize(srcTrans->resource->format);
dstStride = dstTrans->stride / util_format_get_blocksize(dstTrans->resource->format);
- _mesa_generate_mipmap_level(target, datatype, comps,
- 0 /*border*/,
- u_minify(pt->width0, srcLevel),
- u_minify(pt->height0, srcLevel),
- u_minify(pt->depth0, srcLevel),
- srcData,
- srcStride, /* stride in texels */
- u_minify(pt->width0, dstLevel),
- u_minify(pt->height0, dstLevel),
- u_minify(pt->depth0, dstLevel),
- dstData,
- dstStride); /* stride in texels */
+ if (compressed) {
+ const enum pipe_format format = pt->format;
+ const uint bw = util_format_get_blockwidth(format);
+ const uint bh = util_format_get_blockheight(format);
+ const uint srcWidth2 = align(srcWidth, bw);
+ const uint srcHeight2 = align(srcHeight, bh);
+ const uint dstWidth2 = align(dstWidth, bw);
+ const uint dstHeight2 = align(dstHeight, bh);
+ uint8_t *srcTemp, *dstTemp;
+
+ assert(comps == 4);
+
+ srcTemp = malloc(srcWidth2 * srcHeight2 * comps + 000);
+ dstTemp = malloc(dstWidth2 * dstHeight2 * comps + 000);
+
+ /* decompress the src image: srcData -> srcTemp */
+ decompress_image(format, srcData, srcTemp, srcWidth, srcHeight);
+
+ _mesa_generate_mipmap_level(target, datatype, comps,
+ 0 /*border*/,
+ srcWidth2, srcHeight2, srcDepth,
+ srcTemp,
+ srcWidth2, /* stride in texels */
+ dstWidth2, dstHeight2, dstDepth,
+ dstTemp,
+ dstWidth2); /* stride in texels */
+
+ /* compress the new image: dstTemp -> dstData */
+ compress_image(format, dstTemp, dstData, dstWidth2, dstHeight2);
+
+ free(srcTemp);
+ free(dstTemp);
+ }
+ else {
+ _mesa_generate_mipmap_level(target, datatype, comps,
+ 0 /*border*/,
+ srcWidth, srcHeight, srcDepth,
+ srcData,
+ srcStride, /* stride in texels */
+ dstWidth, dstHeight, dstDepth,
+ dstData,
+ dstStride); /* stride in texels */
+ }
pipe_transfer_unmap(pipe, srcTrans);
pipe_transfer_unmap(pipe, dstTrans);
* Compute the expected number of mipmap levels in the texture given
* the width/height/depth of the base image and the GL_TEXTURE_BASE_LEVEL/
* GL_TEXTURE_MAX_LEVEL settings. This will tell us how many mipmap
- * level should be generated.
+ * levels should be generated.
*/
static GLuint
compute_num_levels(GLcontext *ctx,
}
+/**
+ * Called via ctx->Driver.GenerateMipmap().
+ */
void
st_generate_mipmap(GLcontext *ctx, GLenum target,
struct gl_texture_object *texObj)
{
- struct st_context *st = ctx->st;
+ struct st_context *st = st_context(ctx);
struct st_texture_object *stObj = st_texture_object(texObj);
- struct pipe_resource *pt = st_get_texobj_texture(texObj);
+ struct pipe_resource *pt = st_get_texobj_resource(texObj);
const uint baseLevel = texObj->BaseLevel;
uint lastLevel;
uint dstLevel;
dstImage->TexFormat = srcImage->TexFormat;
- stImage = (struct st_texture_image *) dstImage;
+ stImage = st_texture_image(dstImage);
+ stImage->level = dstLevel;
+
pipe_resource_reference(&stImage->pt, pt);
}
}
projects / mesa.git / blobdiff