diff options
Diffstat (limited to 'src/mesa/state_tracker/st_gen_mipmap.c')
| -rw-r--r-- | src/mesa/state_tracker/st_gen_mipmap.c | 190 |
1 files changed, 135 insertions, 55 deletions
diff --git a/src/mesa/state_tracker/st_gen_mipmap.c b/src/mesa/state_tracker/st_gen_mipmap.c index f67d7b4cb5..24a072ee12 100644 --- a/src/mesa/state_tracker/st_gen_mipmap.c +++ b/src/mesa/state_tracker/st_gen_mipmap.c @@ -27,27 +27,19 @@ #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" @@ -79,52 +71,106 @@ st_destroy_generate_mipmap(struct st_context *st) static boolean st_render_mipmap(struct st_context *st, GLenum target, - struct pipe_texture *pt, + struct st_texture_object *stObj, uint baseLevel, uint lastLevel) { struct pipe_context *pipe = st->pipe; struct pipe_screen *screen = pipe->screen; + 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 */ /* check if we can render in the texture's format */ - if (!screen->is_format_supported(screen, pt->format, pt->target, - PIPE_TEXTURE_USAGE_RENDER_TARGET, 0)) { + if (!screen->is_format_supported(screen, psv->format, psv->texture->target, + PIPE_BIND_RENDER_TARGET, 0)) { return FALSE; } - util_gen_mipmap(st->gen_mipmap, pt, face, baseLevel, lastLevel, + 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) +{ + 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_screen *screen = pipe->screen; - struct pipe_texture *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; @@ -133,39 +179,69 @@ fallback_generate_mipmap(GLcontext *ctx, GLenum target, 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)); - - srcData = (ubyte *) screen->transfer_map(screen, srcTrans); - dstData = (ubyte *) screen->transfer_map(screen, dstTrans); - - srcStride = srcTrans->stride / util_format_get_blocksize(srcTrans->texture->format); - dstStride = dstTrans->stride / util_format_get_blocksize(dstTrans->texture->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 */ - - screen->transfer_unmap(screen, srcTrans); - screen->transfer_unmap(screen, dstTrans); - - screen->tex_transfer_destroy(srcTrans); - screen->tex_transfer_destroy(dstTrans); + 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); + + 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); + + pipe->transfer_destroy(pipe, srcTrans); + pipe->transfer_destroy(pipe, dstTrans); } } @@ -174,7 +250,7 @@ fallback_generate_mipmap(GLcontext *ctx, GLenum target, * 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, @@ -207,12 +283,16 @@ 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 pipe_texture *pt = st_get_texobj_texture(texObj); + struct st_context *st = st_context(ctx); + struct st_texture_object *stObj = st_texture_object(texObj); + struct pipe_resource *pt = st_get_texobj_resource(texObj); const uint baseLevel = texObj->BaseLevel; uint lastLevel; uint dstLevel; @@ -230,8 +310,7 @@ st_generate_mipmap(GLcontext *ctx, GLenum target, /* The current gallium texture doesn't have space for all the * mipmap levels we need to generate. So allocate a new texture. */ - struct st_texture_object *stObj = st_texture_object(texObj); - struct pipe_texture *oldTex = stObj->pt; + struct pipe_resource *oldTex = stObj->pt; GLboolean needFlush; /* create new texture with space for more levels */ @@ -242,7 +321,7 @@ st_generate_mipmap(GLcontext *ctx, GLenum target, oldTex->width0, oldTex->height0, oldTex->depth0, - oldTex->tex_usage); + oldTex->bind); /* The texture isn't in a "complete" state yet so set the expected * lastLevel here, since it won't get done in st_finalize_texture(). @@ -255,7 +334,8 @@ st_generate_mipmap(GLcontext *ctx, GLenum target, st_finalize_texture(ctx, st->pipe, texObj, &needFlush); /* release the old tex (will likely be freed too) */ - pipe_texture_reference(&oldTex, NULL); + pipe_resource_reference(&oldTex, NULL); + pipe_sampler_view_reference(&stObj->sampler_view, NULL); pt = stObj->pt; } @@ -265,7 +345,7 @@ st_generate_mipmap(GLcontext *ctx, GLenum target, /* Recall that the Mesa BaseLevel image is stored in the gallium * texture's level[0] position. So pass baseLevel=0 here. */ - if (!st_render_mipmap(st, target, pt, 0, lastLevel)) { + if (!st_render_mipmap(st, target, stObj, 0, lastLevel)) { fallback_generate_mipmap(ctx, target, texObj); } @@ -298,6 +378,6 @@ st_generate_mipmap(GLcontext *ctx, GLenum target, dstImage->TexFormat = srcImage->TexFormat; stImage = (struct st_texture_image *) dstImage; - pipe_texture_reference(&stImage->pt, pt); + pipe_resource_reference(&stImage->pt, pt); } } |