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util/u_blitter: implement alpha blending for pipe->blit

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This commit is contained in:
Marek Olšák
2014-11-08 13:02:47 +01:00
committed by Axel Davy
parent 23da32a923
commit ab0643225e
7 changed files with 49 additions and 23 deletions
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54
src/gallium/auxiliary/util/u_blitter.c
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@@ -104,7 +104,7 @@ struct blitter_context_priv
void *fs_resolve_uint[PIPE_MAX_TEXTURE_TYPES][NUM_RESOLVE_FRAG_SHADERS][2];
/* Blend state. */
void *blend[PIPE_MASK_RGBA+1]; /**< blend state with writemask */
void *blend[PIPE_MASK_RGBA+1][2]; /**< blend state with writemask */
void *blend_clear[GET_CLEAR_BLEND_STATE_IDX(PIPE_CLEAR_COLOR)+1];
/* Depth stencil alpha state. */
@@ -159,7 +159,7 @@ struct blitter_context *util_blitter_create(struct pipe_context *pipe)
struct pipe_rasterizer_state rs_state;
struct pipe_sampler_state sampler_state;
struct pipe_vertex_element velem[2];
unsigned i;
unsigned i, j;
ctx = CALLOC_STRUCT(blitter_context_priv);
if (!ctx)
@@ -208,8 +208,20 @@ struct blitter_context *util_blitter_create(struct pipe_context *pipe)
memset(&blend, 0, sizeof(blend));
for (i = 0; i <= PIPE_MASK_RGBA; i++) {
blend.rt[0].colormask = i;
ctx->blend[i] = pipe->create_blend_state(pipe, &blend);
for (j = 0; j < 2; j++) {
memset(&blend.rt[0], 0, sizeof(blend.rt[0]));
blend.rt[0].colormask = i;
if (j) {
blend.rt[0].blend_enable = 1;
blend.rt[0].rgb_func = PIPE_BLEND_ADD;
blend.rt[0].rgb_src_factor = PIPE_BLENDFACTOR_SRC_ALPHA;
blend.rt[0].rgb_dst_factor = PIPE_BLENDFACTOR_INV_SRC_ALPHA;
blend.rt[0].alpha_func = PIPE_BLEND_ADD;
blend.rt[0].alpha_src_factor = PIPE_BLENDFACTOR_SRC_ALPHA;
blend.rt[0].alpha_dst_factor = PIPE_BLENDFACTOR_INV_SRC_ALPHA;
}
ctx->blend[i][j] = pipe->create_blend_state(pipe, &blend);
}
}
/* depth stencil alpha state objects */
@@ -409,9 +421,10 @@ void util_blitter_destroy(struct blitter_context *blitter)
struct pipe_context *pipe = blitter->pipe;
int i, j, f;
for (i = 0; i <= PIPE_MASK_RGBA; i++) {
pipe->delete_blend_state(pipe, ctx->blend[i]);
}
for (i = 0; i <= PIPE_MASK_RGBA; i++)
for (j = 0; j < 2; j++)
pipe->delete_blend_state(pipe, ctx->blend[i][j]);
for (i = 0; i < Elements(ctx->blend_clear); i++) {
if (ctx->blend_clear[i])
pipe->delete_blend_state(pipe, ctx->blend_clear[i]);
@@ -1217,7 +1230,7 @@ static void *get_clear_blend_state(struct blitter_context_priv *ctx,
/* Return an existing blend state. */
if (!clear_buffers)
return ctx->blend[0];
return ctx->blend[0][0];
index = GET_CLEAR_BLEND_STATE_IDX(clear_buffers);
@@ -1483,7 +1496,8 @@ void util_blitter_copy_texture(struct blitter_context *blitter,
/* Copy. */
util_blitter_blit_generic(blitter, dst_view, &dstbox,
src_view, srcbox, src->width0, src->height0,
PIPE_MASK_RGBAZS, PIPE_TEX_FILTER_NEAREST, NULL);
PIPE_MASK_RGBAZS, PIPE_TEX_FILTER_NEAREST, NULL,
FALSE);
pipe_surface_reference(&dst_view, NULL);
pipe_sampler_view_reference(&src_view, NULL);
@@ -1496,7 +1510,8 @@ void util_blitter_blit_generic(struct blitter_context *blitter,
const struct pipe_box *srcbox,
unsigned src_width0, unsigned src_height0,
unsigned mask, unsigned filter,
const struct pipe_scissor_state *scissor)
const struct pipe_scissor_state *scissor,
boolean alpha_blend)
{
struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter;
struct pipe_context *pipe = ctx->base.pipe;
@@ -1550,7 +1565,7 @@ void util_blitter_blit_generic(struct blitter_context *blitter,
fb_state.zsbuf = NULL;
if (blit_depth || blit_stencil) {
pipe->bind_blend_state(pipe, ctx->blend[0]);
pipe->bind_blend_state(pipe, ctx->blend[0][0]);
if (blit_depth && blit_stencil) {
pipe->bind_depth_stencil_alpha_state(pipe,
@@ -1573,7 +1588,9 @@ void util_blitter_blit_generic(struct blitter_context *blitter,
}
} else {
pipe->bind_blend_state(pipe, ctx->blend[mask & PIPE_MASK_RGBA]);
unsigned colormask = mask & PIPE_MASK_RGBA;
pipe->bind_blend_state(pipe, ctx->blend[colormask][alpha_blend]);
pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_keep_depth_stencil);
ctx->bind_fs_state(pipe,
blitter_get_fs_texfetch_col(ctx, src->format, src_target,
@@ -1786,7 +1803,8 @@ util_blitter_blit(struct blitter_context *blitter,
util_blitter_blit_generic(blitter, dst_view, &info->dst.box,
src_view, &info->src.box, src->width0, src->height0,
info->mask, info->filter,
info->scissor_enable ? &info->scissor : NULL);
info->scissor_enable ? &info->scissor : NULL,
info->alpha_blend);
pipe_surface_reference(&dst_view, NULL);
pipe_sampler_view_reference(&src_view, NULL);
@@ -1815,7 +1833,7 @@ void util_blitter_clear_render_target(struct blitter_context *blitter,
blitter_disable_render_cond(ctx);
/* bind states */
pipe->bind_blend_state(pipe, ctx->blend[PIPE_MASK_RGBA]);
pipe->bind_blend_state(pipe, ctx->blend[PIPE_MASK_RGBA][0]);
pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_keep_depth_stencil);
bind_fs_write_one_cbuf(ctx);
pipe->bind_vertex_elements_state(pipe, ctx->velem_state);
@@ -1867,7 +1885,7 @@ void util_blitter_clear_depth_stencil(struct blitter_context *blitter,
blitter_disable_render_cond(ctx);
/* bind states */
pipe->bind_blend_state(pipe, ctx->blend[0]);
pipe->bind_blend_state(pipe, ctx->blend[0][0]);
if ((clear_flags & PIPE_CLEAR_DEPTHSTENCIL) == PIPE_CLEAR_DEPTHSTENCIL) {
sr.ref_value[0] = stencil & 0xff;
pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_write_depth_stencil);
@@ -1933,8 +1951,8 @@ void util_blitter_custom_depth_stencil(struct blitter_context *blitter,
blitter_disable_render_cond(ctx);
/* bind states */
pipe->bind_blend_state(pipe, cbsurf ? ctx->blend[PIPE_MASK_RGBA] :
ctx->blend[0]);
pipe->bind_blend_state(pipe, cbsurf ? ctx->blend[PIPE_MASK_RGBA][0] :
ctx->blend[0][0]);
pipe->bind_depth_stencil_alpha_state(pipe, dsa_stage);
if (cbsurf)
bind_fs_write_one_cbuf(ctx);
@@ -2187,7 +2205,7 @@ void util_blitter_custom_color(struct blitter_context *blitter,
/* bind states */
pipe->bind_blend_state(pipe, custom_blend ? custom_blend
: ctx->blend[PIPE_MASK_RGBA]);
: ctx->blend[PIPE_MASK_RGBA][0]);
pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_keep_depth_stencil);
bind_fs_write_one_cbuf(ctx);
pipe->bind_vertex_elements_state(pipe, ctx->velem_state);

3
src/gallium/auxiliary/util/u_blitter.h
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@@ -246,7 +246,8 @@ void util_blitter_blit_generic(struct blitter_context *blitter,
const struct pipe_box *srcbox,
unsigned src_width0, unsigned src_height0,
unsigned mask, unsigned filter,
const struct pipe_scissor_state *scissor);
const struct pipe_scissor_state *scissor,
boolean alpha_blend);
void util_blitter_blit(struct blitter_context *blitter,
const struct pipe_blit_info *info);

3
src/gallium/auxiliary/util/u_surface.c
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@@ -676,6 +676,9 @@ util_try_blit_via_copy_region(struct pipe_context *ctx,
return FALSE;
}
if (blit->alpha_blend)
return FALSE;
ctx->resource_copy_region(ctx, blit->dst.resource, blit->dst.level,
blit->dst.box.x, blit->dst.box.y, blit->dst.box.z,
blit->src.resource, blit->src.level,

3
src/gallium/drivers/i915/i915_surface.c
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@@ -120,7 +120,8 @@ i915_surface_copy_render(struct pipe_context *pipe,
util_blitter_blit_generic(i915->blitter, dst_view, &dstbox,
src_view, src_box, src_width0, src_height0,
PIPE_MASK_RGBAZS, PIPE_TEX_FILTER_NEAREST, NULL);
PIPE_MASK_RGBAZS, PIPE_TEX_FILTER_NEAREST, NULL,
FALSE);
return;
fallback:

3
src/gallium/drivers/r300/r300_blit.c
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@@ -667,7 +667,8 @@ static void r300_resource_copy_region(struct pipe_context *pipe,
r300_blitter_begin(r300, R300_COPY);
util_blitter_blit_generic(r300->blitter, dst_view, &dstbox,
src_view, src_box, src_width0, src_height0,
PIPE_MASK_RGBAZS, PIPE_TEX_FILTER_NEAREST, NULL);
PIPE_MASK_RGBAZS, PIPE_TEX_FILTER_NEAREST, NULL,
FALSE);
r300_blitter_end(r300);
pipe_surface_reference(&dst_view, NULL);

3
src/gallium/drivers/r600/r600_blit.c
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@@ -732,7 +732,8 @@ void r600_resource_copy_region(struct pipe_context *ctx,
r600_blitter_begin(ctx, R600_COPY_TEXTURE);
util_blitter_blit_generic(rctx->blitter, dst_view, &dstbox,
src_view, src_box, src_width0, src_height0,
PIPE_MASK_RGBAZS, PIPE_TEX_FILTER_NEAREST, NULL);
PIPE_MASK_RGBAZS, PIPE_TEX_FILTER_NEAREST, NULL,
FALSE);
r600_blitter_end(ctx);
pipe_surface_reference(&dst_view, NULL);

3
src/gallium/drivers/radeonsi/si_blit.c
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@@ -586,7 +586,8 @@ void si_resource_copy_region(struct pipe_context *ctx,
si_blitter_begin(ctx, SI_COPY);
util_blitter_blit_generic(sctx->blitter, dst_view, &dstbox,
src_view, src_box, src_width0, src_height0,
PIPE_MASK_RGBAZS, PIPE_TEX_FILTER_NEAREST, NULL);
PIPE_MASK_RGBAZS, PIPE_TEX_FILTER_NEAREST, NULL,
FALSE);
si_blitter_end(ctx);
pipe_surface_reference(&dst_view, NULL);