{
struct pipe_context *pipe = st->pipe;
struct pipe_screen *screen = pipe->screen;
- struct pipe_sampler_view *psv = st_get_texture_sampler_view(stObj, pipe);
+ struct pipe_sampler_view *psv;
const uint face = _mesa_tex_target_to_face(target);
- assert(psv->texture == stObj->pt);
#if 0
assert(target != GL_TEXTURE_3D); /* implemented but untested */
#endif
/* check if we can render in the texture's format */
/* XXX should probably kill this and always use util_gen_mipmap
since this implements a sw fallback as well */
- if (!screen->is_format_supported(screen, psv->format, psv->texture->target,
- 0, PIPE_BIND_RENDER_TARGET, 0)) {
+ if (!screen->is_format_supported(screen, stObj->pt->format,
+ stObj->pt->target,
+ 0, PIPE_BIND_RENDER_TARGET)) {
return FALSE;
}
+ psv = st_create_texture_sampler_view(pipe, stObj->pt);
+
util_gen_mipmap(st->gen_mipmap, psv, face, baseLevel, lastLevel,
PIPE_TEX_FILTER_LINEAR);
- return TRUE;
-}
-
-
-/**
- * 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, unsigned src_stride)
-{
- const struct util_format_description *desc = util_format_description(format);
- const uint bw = util_format_get_blockwidth(format);
- const uint bh = util_format_get_blockheight(format);
- const uint dst_stride = 4 * MAX2(width, bw);
-
- desc->unpack_rgba_8unorm(dst, dst_stride, src, src_stride, width, height);
-
- if (width < bw || height < bh) {
- /* We're decompressing an image smaller than the compression
- * block size. We don't want garbage pixel values in the region
- * outside (width x height) so replicate pixels from the (width
- * x height) region to fill out the (bw x bh) block size.
- */
- uint x, y;
- for (y = 0; y < bh; y++) {
- for (x = 0; x < bw; x++) {
- if (x >= width || y >= height) {
- uint p = (y * bw + x) * 4;
- dst[p + 0] = dst[0];
- dst[p + 1] = dst[1];
- dst[p + 2] = dst[2];
- dst[p + 3] = dst[3];
- }
- }
- }
- }
-}
-
-
-/**
- * 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, unsigned dst_stride)
-{
- const struct util_format_description *desc = util_format_description(format);
- 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(struct gl_context *ctx, GLenum target,
- struct gl_texture_object *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);
- 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 */
+ pipe_sampler_view_reference(&psv, NULL);
- 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;
- int srcStride, dstStride;
-
- srcTrans = pipe_get_transfer(st_context(ctx)->pipe, pt, srcLevel,
- face,
- PIPE_TRANSFER_READ, 0, 0,
- srcWidth, srcHeight);
-
- dstTrans = pipe_get_transfer(st_context(ctx)->pipe, pt, dstLevel,
- face,
- PIPE_TRANSFER_WRITE, 0, 0,
- 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);
-
- /* this cannot work correctly for 3d since it does
- not respect layerStride. */
- 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, srcTrans->stride);
-
- _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, dstWidth, dstHeight, dstTrans->stride);
-
- 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);
-
- pipe->transfer_destroy(pipe, srcTrans);
- pipe->transfer_destroy(pipe, dstTrans);
- }
+ return TRUE;
}
-
/**
* 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/
struct gl_texture_object *texObj,
GLenum target)
{
- if (target == GL_TEXTURE_RECTANGLE_ARB) {
- return 1;
- }
- else {
- const struct gl_texture_image *baseImage =
- _mesa_get_tex_image(ctx, texObj, target, texObj->BaseLevel);
- GLuint size, numLevels;
+ const struct gl_texture_image *baseImage;
+ GLuint numLevels;
- size = MAX2(baseImage->Width2, baseImage->Height2);
- size = MAX2(size, baseImage->Depth2);
+ baseImage = _mesa_get_tex_image(ctx, texObj, target, texObj->BaseLevel);
- numLevels = texObj->BaseLevel;
-
- while (size > 0) {
- numLevels++;
- size >>= 1;
- }
+ numLevels = texObj->BaseLevel + baseImage->MaxNumLevels;
+ numLevels = MIN2(numLevels, (GLuint) texObj->MaxLevel + 1);
+ assert(numLevels >= 1);
- numLevels = MIN2(numLevels, texObj->MaxLevel + 1);
-
- assert(numLevels >= 1);
-
- return numLevels;
- }
+ return numLevels;
}
oldTex->height0,
oldTex->depth0,
oldTex->array_size,
+ 0,
oldTex->bind);
/* This will copy the old texture's base image into the new texture
if (!st_render_mipmap(st, target, stObj, baseLevel, lastLevel)) {
/* since the util code actually also has a fallback, should
probably make it never fail and kill this */
- fallback_generate_mipmap(ctx, target, texObj);
+ _mesa_generate_mipmap(ctx, target, texObj);
}
/* Fill in the Mesa gl_texture_image fields */
= _mesa_get_tex_image(ctx, texObj, target, srcLevel);
struct gl_texture_image *dstImage;
struct st_texture_image *stImage;
- uint dstWidth = u_minify(pt->width0, dstLevel);
- uint dstHeight = u_minify(pt->height0, dstLevel);
- uint dstDepth = u_minify(pt->depth0, dstLevel);
uint border = srcImage->Border;
+ uint dstWidth, dstHeight, dstDepth;
+
+ dstWidth = u_minify(pt->width0, dstLevel);
+ if (texObj->Target == GL_TEXTURE_1D_ARRAY) {
+ dstHeight = pt->array_size;
+ }
+ else {
+ dstHeight = u_minify(pt->height0, dstLevel);
+ }
+ if (texObj->Target == GL_TEXTURE_2D_ARRAY) {
+ dstDepth = pt->array_size;
+ }
+ else {
+ dstDepth = u_minify(pt->depth0, dstLevel);
+ }
dstImage = _mesa_get_tex_image(ctx, texObj, target, dstLevel);
if (!dstImage) {
}
/* Free old image data */
- if (dstImage->Data)
- ctx->Driver.FreeTexImageData(ctx, dstImage);
+ ctx->Driver.FreeTextureImageBuffer(ctx, dstImage);
/* initialize new image */
- _mesa_init_teximage_fields(ctx, target, dstImage, dstWidth, dstHeight,
+ _mesa_init_teximage_fields(ctx, dstImage, dstWidth, dstHeight,
dstDepth, border, srcImage->InternalFormat,
srcImage->TexFormat);
stImage = st_texture_image(dstImage);
- stImage->level = dstLevel;
pipe_resource_reference(&stImage->pt, pt);
}
projects / mesa.git / blobdiff