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gallium/u_gen_mipmap: accelerate depth texture mipmap generation

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Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Marek Olšák 2012-07-07 21:28:55 +02:00
parent 13b0af721a
commit 91cf9fe988
1 changed files with 58 additions and 26 deletions
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84
src/gallium/auxiliary/util/u_gen_mipmap.c
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@ -59,14 +59,17 @@ struct gen_mipmap_state
struct pipe_context *pipe;
struct cso_context *cso;
struct pipe_blend_state blend;
struct pipe_depth_stencil_alpha_state depthstencil;
struct pipe_blend_state blend_keep_color, blend_write_color;
struct pipe_depth_stencil_alpha_state dsa_keep_depth, dsa_write_depth;
struct pipe_rasterizer_state rasterizer;
struct pipe_sampler_state sampler;
struct pipe_vertex_element velem[2];
void *vs;
void *fs[TGSI_TEXTURE_COUNT]; /**< Not all are used, but simplifies code */
/** Not all are used, but simplifies code */
void *fs_color[TGSI_TEXTURE_COUNT];
void *fs_depth[TGSI_TEXTURE_COUNT];
struct pipe_resource *vbuf; /**< quad vertices */
unsigned vbuf_slot;
@ -1272,11 +1275,16 @@ util_create_gen_mipmap(struct pipe_context *pipe,
ctx->cso = cso;
/* disabled blending/masking */
memset(&ctx->blend, 0, sizeof(ctx->blend));
ctx->blend.rt[0].colormask = PIPE_MASK_RGBA;
memset(&ctx->blend_keep_color, 0, sizeof(ctx->blend_keep_color));
memset(&ctx->blend_write_color, 0, sizeof(ctx->blend_write_color));
ctx->blend_write_color.rt[0].colormask = PIPE_MASK_RGBA;
/* no-op depth/stencil/alpha */
memset(&ctx->depthstencil, 0, sizeof(ctx->depthstencil));
memset(&ctx->dsa_keep_depth, 0, sizeof(ctx->dsa_keep_depth));
memset(&ctx->dsa_write_depth, 0, sizeof(ctx->dsa_write_depth));
ctx->dsa_write_depth.depth.enabled = 1;
ctx->dsa_write_depth.depth.func = PIPE_FUNC_ALWAYS;
ctx->dsa_write_depth.depth.writemask = 1;
/* rasterizer */
memset(&ctx->rasterizer, 0, sizeof(ctx->rasterizer));
@ -1318,14 +1326,25 @@ util_create_gen_mipmap(struct pipe_context *pipe,
* Helper function to set the fragment shaders.
*/
static INLINE void
set_fragment_shader(struct gen_mipmap_state *ctx, uint type)
set_fragment_shader(struct gen_mipmap_state *ctx, uint type,
boolean output_depth)
{
if (!ctx->fs[type])
ctx->fs[type] =
util_make_fragment_tex_shader(ctx->pipe, type,
TGSI_INTERPOLATE_LINEAR);
if (output_depth) {
if (!ctx->fs_depth[type])
ctx->fs_depth[type] =
util_make_fragment_tex_shader_writedepth(ctx->pipe, type,
TGSI_INTERPOLATE_LINEAR);
cso_set_fragment_shader_handle(ctx->cso, ctx->fs[type]);
cso_set_fragment_shader_handle(ctx->cso, ctx->fs_depth[type]);
}
else {
if (!ctx->fs_color[type])
ctx->fs_color[type] =
util_make_fragment_tex_shader(ctx->pipe, type,
TGSI_INTERPOLATE_LINEAR);
cso_set_fragment_shader_handle(ctx->cso, ctx->fs_color[type]);
}
}
@ -1464,9 +1483,13 @@ util_destroy_gen_mipmap(struct gen_mipmap_state *ctx)
struct pipe_context *pipe = ctx->pipe;
unsigned i;
for (i = 0; i < Elements(ctx->fs); i++)
if (ctx->fs[i])
pipe->delete_fs_state(pipe, ctx->fs[i]);
for (i = 0; i < Elements(ctx->fs_color); i++)
if (ctx->fs_color[i])
pipe->delete_fs_state(pipe, ctx->fs_color[i]);
for (i = 0; i < Elements(ctx->fs_depth); i++)
if (ctx->fs_depth[i])
pipe->delete_fs_state(pipe, ctx->fs_depth[i]);
if (ctx->vs)
pipe->delete_vs_state(pipe, ctx->vs);
@ -1500,6 +1523,7 @@ util_gen_mipmap(struct gen_mipmap_state *ctx,
uint dstLevel;
uint offset;
uint type;
boolean is_depth = util_format_is_depth_or_stencil(psv->format);
/* The texture object should have room for the levels which we're
* about to generate.
@ -1538,7 +1562,9 @@ util_gen_mipmap(struct gen_mipmap_state *ctx,
/* check if we can render in the texture's format */
if (!screen->is_format_supported(screen, psv->format, pt->target,
pt->nr_samples, PIPE_BIND_RENDER_TARGET)) {
pt->nr_samples,
is_depth ? PIPE_BIND_DEPTH_STENCIL :
PIPE_BIND_RENDER_TARGET)) {
fallback_gen_mipmap(ctx, pt, face, baseLevel, lastLevel);
return;
}
@ -1559,28 +1585,25 @@ util_gen_mipmap(struct gen_mipmap_state *ctx,
cso_save_vertex_buffers(ctx->cso);
/* bind our state */
cso_set_blend(ctx->cso, &ctx->blend);
cso_set_depth_stencil_alpha(ctx->cso, &ctx->depthstencil);
cso_set_blend(ctx->cso, is_depth ? &ctx->blend_keep_color :
&ctx->blend_write_color);
cso_set_depth_stencil_alpha(ctx->cso, is_depth ? &ctx->dsa_write_depth :
&ctx->dsa_keep_depth);
cso_set_rasterizer(ctx->cso, &ctx->rasterizer);
cso_set_vertex_elements(ctx->cso, 2, ctx->velem);
cso_set_stream_outputs(ctx->cso, 0, NULL, 0);
set_fragment_shader(ctx, type);
set_fragment_shader(ctx, type, is_depth);
set_vertex_shader(ctx);
cso_set_geometry_shader_handle(ctx->cso, NULL);
/* init framebuffer state */
memset(&fb, 0, sizeof(fb));
fb.nr_cbufs = 1;
/* set min/mag to same filter for faster sw speed */
ctx->sampler.mag_img_filter = filter;
ctx->sampler.min_img_filter = filter;
/*
* XXX for small mipmap levels, it may be faster to use the software
* fallback path...
*/
for (dstLevel = baseLevel + 1; dstLevel <= lastLevel; dstLevel++) {
const uint srcLevel = dstLevel - 1;
struct pipe_viewport_state vp;
@ -1609,7 +1632,9 @@ util_gen_mipmap(struct gen_mipmap_state *ctx,
layer = face;
memset(&surf_templ, 0, sizeof(surf_templ));
u_surface_default_template(&surf_templ, pt, PIPE_BIND_RENDER_TARGET);
u_surface_default_template(&surf_templ, pt,
is_depth ? PIPE_BIND_DEPTH_STENCIL :
PIPE_BIND_RENDER_TARGET);
surf_templ.u.tex.level = dstLevel;
surf_templ.u.tex.first_layer = layer;
surf_templ.u.tex.last_layer = layer;
@ -1618,7 +1643,14 @@ util_gen_mipmap(struct gen_mipmap_state *ctx,
/*
* Setup framebuffer / dest surface
*/
fb.cbufs[0] = surf;
if (is_depth) {
fb.nr_cbufs = 0;
fb.zsbuf = surf;
}
else {
fb.nr_cbufs = 1;
fb.cbufs[0] = surf;
}
fb.width = u_minify(pt->width0, dstLevel);
fb.height = u_minify(pt->height0, dstLevel);
cso_set_framebuffer(ctx->cso, &fb);