diff options
| -rw-r--r-- | src/mesa/state_tracker/st_gen_mipmap.c | 68 |
1 files changed, 60 insertions, 8 deletions
diff --git a/src/mesa/state_tracker/st_gen_mipmap.c b/src/mesa/state_tracker/st_gen_mipmap.c index a6ac9a55fb3..5c00392af7c 100644 --- a/src/mesa/state_tracker/st_gen_mipmap.c +++ b/src/mesa/state_tracker/st_gen_mipmap.c @@ -29,11 +29,14 @@ #include "main/imports.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 "pipe/p_inlines.h" +#include "pipe/p_winsys.h" #include "pipe/cso_cache/cso_cache.h" #include "st_context.h" @@ -239,15 +242,18 @@ draw_quad(GLcontext *ctx) */ static boolean st_render_mipmap(struct st_context *st, + GLenum target, struct pipe_texture *pt, uint baseLevel, uint lastLevel) { struct pipe_context *pipe = st->pipe; struct pipe_framebuffer_state fb; - const uint face = 0, zslice = 0; + const uint face = _mesa_tex_target_to_face(target), zslice = 0; const uint first_level_save = pt->first_level; uint dstLevel; + assert(target != GL_TEXTURE_3D); /* not done yet */ + /* check if we can render in the texture's format */ if (!pipe->is_format_supported(pipe, pt->format, PIPE_SURFACE)) { return FALSE; @@ -307,6 +313,56 @@ st_render_mipmap(struct st_context *st, } +static void +fallback_generate_mipmap(GLcontext *ctx, GLenum target, + struct gl_texture_object *texObj) +{ + struct pipe_context *pipe = ctx->st->pipe; + struct pipe_winsys *ws = pipe->winsys; + struct pipe_texture *pt = st_get_texobj_texture(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; + + assert(target != GL_TEXTURE_3D); /* not done yet */ + + _mesa_format_to_type_and_comps(texObj->Image[face][baseLevel]->TexFormat, + &datatype, &comps); + + for (dstLevel = baseLevel + 1; dstLevel <= lastLevel; dstLevel++) { + const uint srcLevel = dstLevel - 1; + struct pipe_surface *srcSurf, *dstSurf; + const ubyte *srcData; + ubyte *dstData; + + srcSurf = pipe->get_tex_surface(pipe, pt, face, srcLevel, zslice); + dstSurf = pipe->get_tex_surface(pipe, pt, face, dstLevel, zslice); + + srcData = (ubyte *) ws->buffer_map(ws, srcSurf->buffer, + PIPE_BUFFER_USAGE_CPU_READ) + + srcSurf->offset; + dstData = (ubyte *) ws->buffer_map(ws, dstSurf->buffer, + PIPE_BUFFER_USAGE_CPU_WRITE) + + dstSurf->offset; + + _mesa_generate_mipmap_level(target, datatype, comps, + 0 /*border*/, + pt->width[srcLevel], pt->height[srcLevel], pt->depth[srcLevel], + srcData, + pt->width[dstLevel], pt->height[dstLevel], pt->depth[dstLevel], + dstData); + + ws->buffer_unmap(ws, srcSurf->buffer); + ws->buffer_unmap(ws, dstSurf->buffer); + + pipe_surface_reference(&srcSurf, NULL); + pipe_surface_reference(&dstSurf, NULL); + } +} + void st_generate_mipmap(GLcontext *ctx, GLenum target, @@ -318,13 +374,11 @@ st_generate_mipmap(GLcontext *ctx, GLenum target, const uint lastLevel = pt->last_level; uint dstLevel; - if (!st_render_mipmap(st, pt, baseLevel, lastLevel)) { - abort(); - /* XXX the following won't really work at this time */ - _mesa_generate_mipmap(ctx, target, texObj); - return; + if (!st_render_mipmap(st, target, pt, baseLevel, lastLevel)) { + fallback_generate_mipmap(ctx, target, texObj); } + /* Fill in the Mesa gl_texture_image fields */ for (dstLevel = baseLevel + 1; dstLevel <= lastLevel; dstLevel++) { const uint srcLevel = dstLevel - 1; const struct gl_texture_image *srcImage @@ -336,7 +390,6 @@ st_generate_mipmap(GLcontext *ctx, GLenum target, uint dstDepth = pt->depth[dstLevel]; uint border = srcImage->Border; - dstImage = _mesa_get_tex_image(ctx, texObj, target, dstLevel); if (!dstImage) { _mesa_error(ctx, GL_OUT_OF_MEMORY, "generating mipmaps"); @@ -359,5 +412,4 @@ st_generate_mipmap(GLcontext *ctx, GLenum target, stImage = (struct st_texture_image *) dstImage; stImage->pt = pt; } - } |