ST_NEW_CS_SAMPLERS)
#define ST_NEW_FRAMEBUFFER (ST_NEW_FB_STATE | \
- ST_NEW_SAMPLE_MASK | \
+ ST_NEW_SAMPLE_STATE | \
ST_NEW_SAMPLE_SHADING)
#define ST_NEW_VERTEX_PROGRAM(st, p) (p->affected_states | \
ST_STATE(ST_NEW_FB_STATE, st_update_framebuffer_state) /* depends on update_*_texture and bind_*_images */
ST_STATE(ST_NEW_BLEND, st_update_blend) /* depends on update_framebuffer_state */
ST_STATE(ST_NEW_RASTERIZER, st_update_rasterizer) /* depends on update_framebuffer_state */
-ST_STATE(ST_NEW_SAMPLE_MASK, st_update_sample_mask) /* depends on update_framebuffer_state */
+ST_STATE(ST_NEW_SAMPLE_STATE, st_update_sample_state) /* depends on update_framebuffer_state */
ST_STATE(ST_NEW_SAMPLE_SHADING, st_update_sample_shading)
ST_STATE(ST_NEW_SCISSOR, st_update_scissor) /* depends on update_framebuffer_state */
ST_STATE(ST_NEW_VIEWPORT, st_update_viewport) /* depends on update_framebuffer_state */
#include "st_program.h"
#include "cso_cache/cso_context.h"
+#include "util/u_framebuffer.h"
#include "main/framebuffer.h"
-/* Update the sample mask for MSAA.
+/**
+ * Update the sample locations
+ */
+static void
+update_sample_locations(struct st_context *st)
+{
+ struct gl_framebuffer *fb = st->ctx->DrawBuffer;
+
+ if (!st->ctx->Extensions.ARB_sample_locations)
+ return;
+
+ if (fb->ProgrammableSampleLocations) {
+ unsigned grid_width, grid_height, size, pixel, sample_index;
+ unsigned samples = st->state.fb_num_samples;
+ bool sample_location_pixel_grid = fb->SampleLocationPixelGrid;
+ uint8_t locations[
+ PIPE_MAX_SAMPLE_LOCATION_GRID_SIZE *
+ PIPE_MAX_SAMPLE_LOCATION_GRID_SIZE * 32];
+
+ st->pipe->screen->get_sample_pixel_grid(
+ st->pipe->screen, samples, &grid_width, &grid_height);
+ size = grid_width * grid_height * samples;
+
+ /**
+ * when a dimension is greater than MAX_SAMPLE_LOCATION_GRID_SIZE,
+ * st->ctx->Driver.GetSamplePixelGrid() returns 1 for both dimensions.
+ */
+ if (grid_width > MAX_SAMPLE_LOCATION_GRID_SIZE ||
+ grid_height > MAX_SAMPLE_LOCATION_GRID_SIZE)
+ sample_location_pixel_grid = false;
+
+ for (pixel = 0; pixel < grid_width * grid_height; pixel++) {
+ for (sample_index = 0; sample_index < samples; sample_index++) {
+ int table_index = sample_index;
+ float x = 0.5f, y = 0.5f;
+ uint8_t loc;
+ if (sample_location_pixel_grid)
+ table_index = pixel * samples + sample_index;
+ if (fb->SampleLocationTable) {
+ x = fb->SampleLocationTable[table_index*2];
+ y = fb->SampleLocationTable[table_index*2+1];
+ }
+ if (st->state.fb_orientation == Y_0_BOTTOM)
+ y = 1.0 - y;
+
+ loc = roundf(CLAMP(x * 16.0f, 0.0f, 15.0f));
+ loc |= (int)roundf(CLAMP(y * 16.0f, 0.0f, 15.0f)) << 4;
+ locations[pixel * samples + sample_index] = loc;
+ }
+ }
+
+ util_sample_locations_flip_y(
+ st->pipe->screen, st->state.fb_height, samples, locations);
+
+ if (!st->state.enable_sample_locations ||
+ st->state.sample_locations_samples != samples ||
+ memcmp(locations, st->state.sample_locations, size) != 0) {
+ st->pipe->set_sample_locations( st->pipe, size, locations);
+
+ st->state.sample_locations_samples = samples;
+ memcpy(st->state.sample_locations, locations, size);
+ }
+ } else if (st->state.enable_sample_locations) {
+ st->pipe->set_sample_locations(st->pipe, 0, NULL);
+ }
+
+ st->state.enable_sample_locations = fb->ProgrammableSampleLocations;
+}
+
+
+/* Update the sample mask and locations for MSAA.
*/
void
-st_update_sample_mask(struct st_context *st)
+st_update_sample_state(struct st_context *st)
{
unsigned sample_mask = 0xffffffff;
unsigned sample_count = st->state.fb_num_samples;
}
cso_set_sample_mask(st->cso_context, sample_mask);
+
+ update_sample_locations(st);
}
}
+/**
+ * Called via ctx->Driver.EvaluateDepthValues.
+ */
+static void
+st_EvaluateDepthValues(struct gl_context *ctx)
+{
+ struct st_context *st = st_context(ctx);
+
+ st_validate_state(st, ST_PIPELINE_UPDATE_FRAMEBUFFER);
+
+ st->pipe->evaluate_depth_buffer(st->pipe);
+}
+
void
st_init_fbo_functions(struct dd_function_table *functions)
functions->MapRenderbuffer = st_MapRenderbuffer;
functions->UnmapRenderbuffer = st_UnmapRenderbuffer;
+ functions->EvaluateDepthValues = st_EvaluateDepthValues;
}
}
+static void
+st_GetProgrammableSampleCaps(struct gl_context *ctx, const struct gl_framebuffer *fb,
+ GLuint *outBits, GLuint *outWidth, GLuint *outHeight)
+{
+ struct st_context *st = st_context(ctx);
+ struct pipe_screen *screen = st->pipe->screen;
+
+ st_validate_state(st, ST_PIPELINE_UPDATE_FRAMEBUFFER);
+
+ *outBits = 4;
+ *outWidth = 1;
+ *outHeight = 1;
+
+ if (ctx->Extensions.ARB_sample_locations)
+ screen->get_sample_pixel_grid(screen, st->state.fb_num_samples,
+ outWidth, outHeight);
+
+ /* We could handle this better in some circumstances,
+ * but it's not really an issue */
+ if (*outWidth > MAX_SAMPLE_LOCATION_GRID_SIZE ||
+ *outHeight > MAX_SAMPLE_LOCATION_GRID_SIZE) {
+ *outWidth = 1;
+ *outHeight = 1;
+ }
+}
+
void
st_init_msaa_functions(struct dd_function_table *functions)
{
functions->GetSamplePosition = st_GetSamplePosition;
+ functions->GetProgrammableSampleCaps = st_GetProgrammableSampleCaps;
}
st->dirty |= ST_NEW_BLEND |
ST_NEW_DSA |
ST_NEW_FB_STATE |
- ST_NEW_SAMPLE_MASK |
+ ST_NEW_SAMPLE_STATE |
ST_NEW_SAMPLE_SHADING |
ST_NEW_FS_STATE |
ST_NEW_POLY_STIPPLE |
f->NewLogicOp = ST_NEW_BLEND;
f->NewStencil = ST_NEW_DSA;
f->NewMultisampleEnable = ST_NEW_BLEND | ST_NEW_RASTERIZER |
- ST_NEW_SAMPLE_MASK | ST_NEW_SAMPLE_SHADING;
+ ST_NEW_SAMPLE_STATE | ST_NEW_SAMPLE_SHADING;
f->NewSampleAlphaToXEnable = ST_NEW_BLEND;
- f->NewSampleMask = ST_NEW_SAMPLE_MASK;
+ f->NewSampleMask = ST_NEW_SAMPLE_STATE;
+ f->NewSampleLocations = ST_NEW_SAMPLE_STATE;
f->NewSampleShading = ST_NEW_SAMPLE_SHADING;
/* This depends on what the gallium driver wants. */
GLuint poly_stipple[32]; /**< In OpenGL's bottom-to-top order */
GLuint fb_orientation;
+
+ bool enable_sample_locations;
+ unsigned sample_locations_samples;
+ uint8_t sample_locations[
+ PIPE_MAX_SAMPLE_LOCATION_GRID_SIZE *
+ PIPE_MAX_SAMPLE_LOCATION_GRID_SIZE * 32];
} state;
uint64_t dirty; /**< dirty states */
{ o(ARB_query_buffer_object), PIPE_CAP_QUERY_BUFFER_OBJECT },
{ o(ARB_robust_buffer_access_behavior), PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR },
{ o(ARB_sample_shading), PIPE_CAP_SAMPLE_SHADING },
+ { o(ARB_sample_locations), PIPE_CAP_PROGRAMMABLE_SAMPLE_LOCATIONS },
{ o(ARB_seamless_cube_map), PIPE_CAP_SEAMLESS_CUBE_MAP },
{ o(ARB_shader_ballot), PIPE_CAP_TGSI_BALLOT },
{ o(ARB_shader_clock), PIPE_CAP_TGSI_CLOCK },
projects / mesa.git / commitdiff