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path: root/src/gallium/auxiliary/util/u_blitter.c
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Diffstat (limited to 'src/gallium/auxiliary/util/u_blitter.c')
-rw-r--r--src/gallium/auxiliary/util/u_blitter.c195
1 files changed, 148 insertions, 47 deletions
diff --git a/src/gallium/auxiliary/util/u_blitter.c b/src/gallium/auxiliary/util/u_blitter.c
index 1f794d39a1..249a0375fc 100644
--- a/src/gallium/auxiliary/util/u_blitter.c
+++ b/src/gallium/auxiliary/util/u_blitter.c
@@ -48,6 +48,8 @@
#include "util/u_simple_shaders.h"
#include "util/u_texture.h"
+#define INVALID_PTR ((void*)~0)
+
struct blitter_context_priv
{
struct blitter_context blitter;
@@ -110,6 +112,11 @@ struct blitter_context *util_blitter_create(struct pipe_context *pipe)
ctx->pipe = pipe;
/* init state objects for them to be considered invalid */
+ ctx->blitter.saved_blend_state = INVALID_PTR;
+ ctx->blitter.saved_dsa_state = INVALID_PTR;
+ ctx->blitter.saved_rs_state = INVALID_PTR;
+ ctx->blitter.saved_fs = INVALID_PTR;
+ ctx->blitter.saved_vs = INVALID_PTR;
ctx->blitter.saved_fb_state.nr_cbufs = ~0;
ctx->blitter.saved_num_textures = ~0;
ctx->blitter.saved_num_sampler_states = ~0;
@@ -156,6 +163,7 @@ struct blitter_context *util_blitter_create(struct pipe_context *pipe)
rs_state.cull_mode = PIPE_WINDING_NONE;
rs_state.bypass_vs_clip_and_viewport = 1;
rs_state.gl_rasterization_rules = 1;
+ rs_state.flatshade = 1;
ctx->rs_state = pipe->create_rasterizer_state(pipe, &rs_state);
/* fragment shaders are created on-demand */
@@ -234,11 +242,11 @@ void util_blitter_destroy(struct blitter_context *blitter)
static void blitter_check_saved_CSOs(struct blitter_context_priv *ctx)
{
/* make sure these CSOs have been saved */
- assert(ctx->blitter.saved_blend_state &&
- ctx->blitter.saved_dsa_state &&
- ctx->blitter.saved_rs_state &&
- ctx->blitter.saved_fs &&
- ctx->blitter.saved_vs);
+ assert(ctx->blitter.saved_blend_state != INVALID_PTR &&
+ ctx->blitter.saved_dsa_state != INVALID_PTR &&
+ ctx->blitter.saved_rs_state != INVALID_PTR &&
+ ctx->blitter.saved_fs != INVALID_PTR &&
+ ctx->blitter.saved_vs != INVALID_PTR);
}
static void blitter_restore_CSOs(struct blitter_context_priv *ctx)
@@ -252,11 +260,11 @@ static void blitter_restore_CSOs(struct blitter_context_priv *ctx)
pipe->bind_fs_state(pipe, ctx->blitter.saved_fs);
pipe->bind_vs_state(pipe, ctx->blitter.saved_vs);
- ctx->blitter.saved_blend_state = 0;
- ctx->blitter.saved_dsa_state = 0;
- ctx->blitter.saved_rs_state = 0;
- ctx->blitter.saved_fs = 0;
- ctx->blitter.saved_vs = 0;
+ ctx->blitter.saved_blend_state = INVALID_PTR;
+ ctx->blitter.saved_dsa_state = INVALID_PTR;
+ ctx->blitter.saved_rs_state = INVALID_PTR;
+ ctx->blitter.saved_fs = INVALID_PTR;
+ ctx->blitter.saved_vs = INVALID_PTR;
/* restore the state objects which are required to be saved before copy/fill
*/
@@ -371,9 +379,16 @@ static void blitter_set_texcoords_cube(struct blitter_context_priv *ctx,
float t1 = y1 / (float)surf->height;
float s2 = x2 / (float)surf->width;
float t2 = y2 / (float)surf->height;
- const float st[4][2] = {
- {s1, t1}, {s2, t1}, {s2, t2}, {s1, t2}
- };
+ float st[4][2];
+
+ st[0][0] = s1;
+ st[0][1] = t1;
+ st[1][0] = s2;
+ st[1][1] = t1;
+ st[2][0] = s2;
+ st[2][1] = t2;
+ st[3][0] = s1;
+ st[3][1] = t2;
util_map_texcoords2d_onto_cubemap(surf->face,
/* pointer, stride in floats */
@@ -560,45 +575,29 @@ void util_blitter_clear(struct blitter_context *blitter,
blitter_restore_CSOs(ctx);
}
-void util_blitter_copy(struct blitter_context *blitter,
- struct pipe_surface *dst,
- unsigned dstx, unsigned dsty,
- struct pipe_surface *src,
- unsigned srcx, unsigned srcy,
- unsigned width, unsigned height,
- boolean ignore_stencil)
+static boolean
+is_overlap(unsigned sx1, unsigned sx2, unsigned sy1, unsigned sy2,
+ unsigned dx1, unsigned dx2, unsigned dy1, unsigned dy2)
+{
+ if (sx1 >= dx2 || sx2 <= dx1 || sy1 >= dy2 || sy2 <= dy1) {
+ return FALSE;
+ } else {
+ return TRUE;
+ }
+}
+
+static void util_blitter_do_copy(struct blitter_context *blitter,
+ struct pipe_surface *dst,
+ unsigned dstx, unsigned dsty,
+ struct pipe_surface *src,
+ unsigned srcx, unsigned srcy,
+ unsigned width, unsigned height,
+ boolean is_depth)
{
struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter;
struct pipe_context *pipe = ctx->pipe;
- struct pipe_screen *screen = pipe->screen;
struct pipe_framebuffer_state fb_state;
- boolean is_stencil, is_depth;
- unsigned dst_tex_usage;
-
- /* give up if textures are not set */
- assert(dst->texture && src->texture);
- if (!dst->texture || !src->texture)
- return;
-
- is_depth = util_format_get_component_bits(src->format, UTIL_FORMAT_COLORSPACE_ZS, 0) != 0;
- is_stencil = util_format_get_component_bits(src->format, UTIL_FORMAT_COLORSPACE_ZS, 1) != 0;
- dst_tex_usage = is_depth || is_stencil ? PIPE_TEXTURE_USAGE_DEPTH_STENCIL :
- PIPE_TEXTURE_USAGE_RENDER_TARGET;
- /* check if we can sample from and render to the surfaces */
- /* (assuming copying a stencil buffer is not possible) */
- if ((!ignore_stencil && is_stencil) ||
- !screen->is_format_supported(screen, dst->format, dst->texture->target,
- dst_tex_usage, 0) ||
- !screen->is_format_supported(screen, src->format, src->texture->target,
- PIPE_TEXTURE_USAGE_SAMPLER, 0)) {
- util_surface_copy(pipe, FALSE, dst, dstx, dsty, src, srcx, srcy,
- width, height);
- return;
- }
-
- /* check whether the states are properly saved */
- blitter_check_saved_CSOs(ctx);
assert(blitter->saved_fb_state.nr_cbufs != ~0);
assert(blitter->saved_num_textures != ~0);
assert(blitter->saved_num_sampler_states != ~0);
@@ -656,6 +655,108 @@ void util_blitter_copy(struct blitter_context *blitter,
blitter_set_rectangle(ctx, dstx, dsty, dstx+width, dsty+height, 0);
blitter_draw_quad(ctx);
+
+}
+
+static void util_blitter_overlap_copy(struct blitter_context *blitter,
+ struct pipe_surface *dst,
+ unsigned dstx, unsigned dsty,
+ struct pipe_surface *src,
+ unsigned srcx, unsigned srcy,
+ unsigned width, unsigned height)
+{
+ struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter;
+ struct pipe_context *pipe = ctx->pipe;
+ struct pipe_screen *screen = pipe->screen;
+
+ struct pipe_texture texTemp;
+ struct pipe_texture *texture;
+ struct pipe_surface *tex_surf;
+
+ /* check whether the states are properly saved */
+ blitter_check_saved_CSOs(ctx);
+
+ memset(&texTemp, 0, sizeof(texTemp));
+ texTemp.target = PIPE_TEXTURE_2D;
+ texTemp.format = dst->texture->format; /* XXX verify supported by driver! */
+ texTemp.last_level = 0;
+ texTemp.width0 = width;
+ texTemp.height0 = height;
+ texTemp.depth0 = 1;
+
+ texture = screen->texture_create(screen, &texTemp);
+ if (!texture)
+ return;
+
+ tex_surf = screen->get_tex_surface(screen, texture, 0, 0, 0,
+ PIPE_BUFFER_USAGE_GPU_READ |
+ PIPE_BUFFER_USAGE_GPU_WRITE);
+
+ /* blit from the src to the temp */
+ util_blitter_do_copy(blitter, tex_surf, 0, 0,
+ src, srcx, srcy,
+ width, height,
+ FALSE);
+ util_blitter_do_copy(blitter, dst, dstx, dsty,
+ tex_surf, 0, 0,
+ width, height,
+ FALSE);
+ pipe_surface_reference(&tex_surf, NULL);
+ pipe_texture_reference(&texture, NULL);
+ blitter_restore_CSOs(ctx);
+}
+
+void util_blitter_copy(struct blitter_context *blitter,
+ struct pipe_surface *dst,
+ unsigned dstx, unsigned dsty,
+ struct pipe_surface *src,
+ unsigned srcx, unsigned srcy,
+ unsigned width, unsigned height,
+ boolean ignore_stencil)
+{
+ struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter;
+ struct pipe_context *pipe = ctx->pipe;
+ struct pipe_screen *screen = pipe->screen;
+ boolean is_stencil, is_depth;
+ unsigned dst_tex_usage;
+
+ /* give up if textures are not set */
+ assert(dst->texture && src->texture);
+ if (!dst->texture || !src->texture)
+ return;
+
+ if (dst->texture == src->texture) {
+ if (is_overlap(srcx, srcx + width, srcy, srcy + height,
+ dstx, dstx + width, dsty, dsty + height)) {
+ util_blitter_overlap_copy(blitter, dst, dstx, dsty, src, srcx, srcy,
+ width, height);
+ return;
+ }
+ }
+
+ is_depth = util_format_get_component_bits(src->format, UTIL_FORMAT_COLORSPACE_ZS, 0) != 0;
+ is_stencil = util_format_get_component_bits(src->format, UTIL_FORMAT_COLORSPACE_ZS, 1) != 0;
+ dst_tex_usage = is_depth || is_stencil ? PIPE_TEXTURE_USAGE_DEPTH_STENCIL :
+ PIPE_TEXTURE_USAGE_RENDER_TARGET;
+
+ /* check if we can sample from and render to the surfaces */
+ /* (assuming copying a stencil buffer is not possible) */
+ if ((!ignore_stencil && is_stencil) ||
+ !screen->is_format_supported(screen, dst->format, dst->texture->target,
+ dst_tex_usage, 0) ||
+ !screen->is_format_supported(screen, src->format, src->texture->target,
+ PIPE_TEXTURE_USAGE_SAMPLER, 0)) {
+ util_surface_copy(pipe, FALSE, dst, dstx, dsty, src, srcx, srcy,
+ width, height);
+ return;
+ }
+
+ /* check whether the states are properly saved */
+ blitter_check_saved_CSOs(ctx);
+ util_blitter_do_copy(blitter,
+ dst, dstx, dsty,
+ src, srcx, srcy,
+ width, height, is_depth);
blitter_restore_CSOs(ctx);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-29 14:32:40 +0000