/*
Copyright (C) Intel Corp. 2006. All Rights Reserved.
- Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to
+ Intel funded Tungsten Graphics to
develop this 3D driver.
-
+
Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:
-
+
The above copyright notice and this permission notice (including the
next paragraph) shall be included in all copies or substantial
portions of the Software.
-
+
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
+
**********************************************************************/
/*
* Authors:
- * Keith Whitwell <keith@tungstengraphics.com>
+ * Keith Whitwell <keithw@vmware.com>
*/
-
+
#include "brw_context.h"
#include "brw_wm.h"
#include "brw_state.h"
#include "main/fbobject.h"
#include "main/samplerobj.h"
#include "program/prog_parameter.h"
+#include "program/program.h"
+#include "intel_mipmap_tree.h"
-#include "glsl/ralloc.h"
+#include "util/ralloc.h"
/**
* Return a bitfield where bit n is set if barycentric interpolation mode n
static unsigned
brw_compute_barycentric_interp_modes(struct brw_context *brw,
bool shade_model_flat,
+ bool persample_shading,
const struct gl_fragment_program *fprog)
{
unsigned barycentric_interp_modes = 0;
for (attr = 0; attr < VARYING_SLOT_MAX; ++attr) {
enum glsl_interp_qualifier interp_qualifier =
fprog->InterpQualifier[attr];
- bool is_centroid = fprog->IsCentroid & BITFIELD64_BIT(attr);
+ bool is_centroid = (fprog->IsCentroid & BITFIELD64_BIT(attr)) &&
+ !persample_shading;
+ bool is_sample = (fprog->IsSample & BITFIELD64_BIT(attr)) ||
+ persample_shading;
bool is_gl_Color = attr == VARYING_SLOT_COL0 || attr == VARYING_SLOT_COL1;
/* Ignore unused inputs. */
if (is_centroid) {
barycentric_interp_modes |=
1 << BRW_WM_NONPERSPECTIVE_CENTROID_BARYCENTRIC;
+ } else if (is_sample) {
+ barycentric_interp_modes |=
+ 1 << BRW_WM_NONPERSPECTIVE_SAMPLE_BARYCENTRIC;
}
- if (!is_centroid || brw->needs_unlit_centroid_workaround) {
+ if ((!is_centroid && !is_sample) ||
+ brw->needs_unlit_centroid_workaround) {
barycentric_interp_modes |=
1 << BRW_WM_NONPERSPECTIVE_PIXEL_BARYCENTRIC;
}
if (is_centroid) {
barycentric_interp_modes |=
1 << BRW_WM_PERSPECTIVE_CENTROID_BARYCENTRIC;
+ } else if (is_sample) {
+ barycentric_interp_modes |=
+ 1 << BRW_WM_PERSPECTIVE_SAMPLE_BARYCENTRIC;
}
- if (!is_centroid || brw->needs_unlit_centroid_workaround) {
+ if ((!is_centroid && !is_sample) ||
+ brw->needs_unlit_centroid_workaround) {
barycentric_interp_modes |=
1 << BRW_WM_PERSPECTIVE_PIXEL_BARYCENTRIC;
}
return barycentric_interp_modes;
}
+static uint8_t
+computed_depth_mode(struct gl_fragment_program *fp)
+{
+ if (fp->Base.OutputsWritten & BITFIELD64_BIT(FRAG_RESULT_DEPTH)) {
+ switch (fp->FragDepthLayout) {
+ case FRAG_DEPTH_LAYOUT_NONE:
+ case FRAG_DEPTH_LAYOUT_ANY:
+ return BRW_PSCDEPTH_ON;
+ case FRAG_DEPTH_LAYOUT_GREATER:
+ return BRW_PSCDEPTH_ON_GE;
+ case FRAG_DEPTH_LAYOUT_LESS:
+ return BRW_PSCDEPTH_ON_LE;
+ case FRAG_DEPTH_LAYOUT_UNCHANGED:
+ return BRW_PSCDEPTH_OFF;
+ }
+ }
+ return BRW_PSCDEPTH_OFF;
+}
+
bool
brw_wm_prog_data_compare(const void *in_a, const void *in_b)
{
const struct brw_wm_prog_data *a = in_a;
const struct brw_wm_prog_data *b = in_b;
- /* Compare all the struct up to the pointers. */
- if (memcmp(a, b, offsetof(struct brw_wm_prog_data, param)))
+ /* Compare the base structure. */
+ if (!brw_stage_prog_data_compare(&a->base, &b->base))
return false;
- if (memcmp(a->param, b->param, a->nr_params * sizeof(void *)))
- return false;
-
- if (memcmp(a->pull_param, b->pull_param, a->nr_pull_params * sizeof(void *)))
+ /* Compare the rest of the structure. */
+ const unsigned offset = sizeof(struct brw_stage_prog_data);
+ if (memcmp(((char *) a) + offset, ((char *) b) + offset,
+ sizeof(struct brw_wm_prog_data) - offset))
return false;
return true;
}
-void
-brw_wm_prog_data_free(const void *in_prog_data)
-{
- const struct brw_wm_prog_data *prog_data = in_prog_data;
-
- ralloc_free((void *)prog_data->param);
- ralloc_free((void *)prog_data->pull_param);
-}
-
/**
* All Mesa program -> GPU code generation goes through this function.
* Depending on the instructions used (i.e. flow control instructions)
struct brw_fragment_program *fp,
struct brw_wm_prog_key *key)
{
- struct brw_wm_compile *c;
+ struct gl_context *ctx = &brw->ctx;
+ void *mem_ctx = ralloc_context(NULL);
+ struct brw_wm_prog_data prog_data;
const GLuint *program;
struct gl_shader *fs = NULL;
GLuint program_size;
if (prog)
fs = prog->_LinkedShaders[MESA_SHADER_FRAGMENT];
- c = rzalloc(NULL, struct brw_wm_compile);
+ memset(&prog_data, 0, sizeof(prog_data));
+ /* key->alpha_test_func means simulating alpha testing via discards,
+ * so the shader definitely kills pixels.
+ */
+ prog_data.uses_kill = fp->program.UsesKill || key->alpha_test_func;
+
+ prog_data.computed_depth_mode = computed_depth_mode(&fp->program);
+
+ /* Use ALT floating point mode for ARB programs so that 0^0 == 1. */
+ if (!prog)
+ prog_data.base.use_alt_mode = true;
/* Allocate the references to the uniforms that will end up in the
* prog_data associated with the compiled program, and which will be freed
param_count = fp->program.Base.Parameters->NumParameters * 4;
}
/* The backend also sometimes adds params for texture size. */
- param_count += 2 * BRW_MAX_TEX_UNIT;
- c->prog_data.param = rzalloc_array(NULL, const float *, param_count);
- c->prog_data.pull_param = rzalloc_array(NULL, const float *, param_count);
-
- memcpy(&c->key, key, sizeof(*key));
-
- c->prog_data.barycentric_interp_modes =
- brw_compute_barycentric_interp_modes(brw, c->key.flat_shade,
+ param_count += 2 * ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxTextureImageUnits;
+ prog_data.base.param =
+ rzalloc_array(NULL, const gl_constant_value *, param_count);
+ prog_data.base.pull_param =
+ rzalloc_array(NULL, const gl_constant_value *, param_count);
+ prog_data.base.nr_params = param_count;
+
+ prog_data.barycentric_interp_modes =
+ brw_compute_barycentric_interp_modes(brw, key->flat_shade,
+ key->persample_shading,
&fp->program);
- program = brw_wm_fs_emit(brw, c, &fp->program, prog, &program_size);
- if (program == NULL)
+ program = brw_wm_fs_emit(brw, mem_ctx, key, &prog_data,
+ &fp->program, prog, &program_size);
+ if (program == NULL) {
+ ralloc_free(mem_ctx);
return false;
+ }
- /* Scratch space is used for register spilling */
- if (c->last_scratch) {
- perf_debug("Fragment shader triggered register spilling. "
- "Try reducing the number of live scalar values to "
- "improve performance.\n");
-
- c->prog_data.total_scratch = brw_get_scratch_size(c->last_scratch);
-
+ if (prog_data.base.total_scratch) {
brw_get_scratch_bo(brw, &brw->wm.base.scratch_bo,
- c->prog_data.total_scratch * brw->max_wm_threads);
+ prog_data.base.total_scratch * brw->max_wm_threads);
}
if (unlikely(INTEL_DEBUG & DEBUG_WM))
fprintf(stderr, "\n");
- brw_upload_cache(&brw->cache, BRW_WM_PROG,
- &c->key, sizeof(c->key),
+ brw_upload_cache(&brw->cache, BRW_CACHE_FS_PROG,
+ key, sizeof(struct brw_wm_prog_key),
program, program_size,
- &c->prog_data, sizeof(c->prog_data),
+ &prog_data, sizeof(prog_data),
&brw->wm.base.prog_offset, &brw->wm.prog_data);
- ralloc_free(c);
+ ralloc_free(mem_ctx);
return true;
}
old_key->gl_clamp_mask[1], key->gl_clamp_mask[1]);
found |= key_debug(brw, "GL_CLAMP enabled on any texture unit's 3rd coordinate",
old_key->gl_clamp_mask[2], key->gl_clamp_mask[2]);
- found |= key_debug(brw, "GL_MESA_ycbcr texturing\n",
- old_key->yuvtex_mask, key->yuvtex_mask);
- found |= key_debug(brw, "GL_MESA_ycbcr UV swapping\n",
- old_key->yuvtex_swap_mask, key->yuvtex_swap_mask);
found |= key_debug(brw, "gather channel quirk on any texture unit",
old_key->gather_channel_quirk_mask, key->gather_channel_quirk_mask);
for (unsigned int i = 0; i < brw->cache.size; i++) {
for (c = brw->cache.items[i]; c; c = c->next) {
- if (c->cache_id == BRW_WM_PROG) {
+ if (c->cache_id == BRW_CACHE_FS_PROG) {
old_key = c->key;
if (old_key->program_string_id == key->program_string_id)
old_key->stats_wm, key->stats_wm);
found |= key_debug(brw, "flat shading",
old_key->flat_shade, key->flat_shade);
+ found |= key_debug(brw, "per-sample shading",
+ old_key->persample_shading, key->persample_shading);
+ found |= key_debug(brw, "per-sample shading and 2x MSAA",
+ old_key->persample_2x, key->persample_2x);
found |= key_debug(brw, "number of color buffers",
old_key->nr_color_regions, key->nr_color_regions);
found |= key_debug(brw, "MRT alpha test or alpha-to-coverage",
old_key->drawable_height, key->drawable_height);
found |= key_debug(brw, "input slots valid",
old_key->input_slots_valid, key->input_slots_valid);
+ found |= key_debug(brw, "mrt alpha test function",
+ old_key->alpha_test_func, key->alpha_test_func);
+ found |= key_debug(brw, "mrt alpha test reference value",
+ old_key->alpha_test_ref, key->alpha_test_ref);
found |= brw_debug_recompile_sampler_key(brw, &old_key->tex, &key->tex);
}
}
+static uint8_t
+gen6_gather_workaround(GLenum internalformat)
+{
+ switch (internalformat) {
+ case GL_R8I: return WA_SIGN | WA_8BIT;
+ case GL_R8UI: return WA_8BIT;
+ case GL_R16I: return WA_SIGN | WA_16BIT;
+ case GL_R16UI: return WA_16BIT;
+ /* note that even though GL_R32I and GL_R32UI have format overrides
+ * in the surface state, there is no shader w/a required */
+ default: return 0;
+ }
+}
+
void
brw_populate_sampler_prog_key_data(struct gl_context *ctx,
const struct gl_program *prog,
int unit_id = prog->SamplerUnits[s];
const struct gl_texture_unit *unit = &ctx->Texture.Unit[unit_id];
- if (unit->_ReallyEnabled && unit->_Current->Target != GL_TEXTURE_BUFFER) {
+ if (unit->_Current && unit->_Current->Target != GL_TEXTURE_BUFFER) {
const struct gl_texture_object *t = unit->_Current;
const struct gl_texture_image *img = t->Image[0][t->BaseLevel];
struct gl_sampler_object *sampler = _mesa_get_samplerobj(ctx, unit_id);
/* Haswell handles texture swizzling as surface format overrides
* (except for GL_ALPHA); all other platforms need MOVs in the shader.
*/
- if (!brw->is_haswell || alpha_depth)
+ if (alpha_depth || (brw->gen < 8 && !brw->is_haswell))
key->swizzles[s] = brw_get_texture_swizzle(ctx, t);
- if (img->InternalFormat == GL_YCBCR_MESA) {
- key->yuvtex_mask |= 1 << s;
- if (img->TexFormat == MESA_FORMAT_YCBCR)
- key->yuvtex_swap_mask |= 1 << s;
- }
-
- if (sampler->MinFilter != GL_NEAREST &&
+ if (brw->gen < 8 &&
+ sampler->MinFilter != GL_NEAREST &&
sampler->MagFilter != GL_NEAREST) {
if (sampler->WrapS == GL_CLAMP)
key->gl_clamp_mask[0] |= 1 << s;
/* gather4's channel select for green from RG32F is broken;
* requires a shader w/a on IVB; fixable with just SCS on HSW. */
- if (brw->gen >= 7 && !brw->is_haswell && prog->UsesGather) {
+ if (brw->gen == 7 && !brw->is_haswell && prog->UsesGather) {
if (img->InternalFormat == GL_RG32F)
key->gather_channel_quirk_mask |= 1 << s;
}
+
+ /* Gen6's gather4 is broken for UINT/SINT; we treat them as
+ * UNORM/FLOAT instead and fix it in the shader.
+ */
+ if (brw->gen == 6 && prog->UsesGather) {
+ key->gen6_gather_wa[s] = gen6_gather_workaround(img->InternalFormat);
+ }
+
+ /* If this is a multisample sampler, and uses the CMS MSAA layout,
+ * then we need to emit slightly different code to first sample the
+ * MCS surface.
+ */
+ struct intel_texture_object *intel_tex =
+ intel_texture_object((struct gl_texture_object *)t);
+
+ if (brw->gen >= 7 &&
+ intel_tex->mt->msaa_layout == INTEL_MSAA_LAYOUT_CMS) {
+ key->compressed_multisample_layout_mask |= 1 << s;
+ }
}
}
}
{
struct gl_context *ctx = &brw->ctx;
/* BRW_NEW_FRAGMENT_PROGRAM */
- const struct brw_fragment_program *fp =
+ const struct brw_fragment_program *fp =
(struct brw_fragment_program *)brw->fragment_program;
const struct gl_program *prog = (struct gl_program *) brw->fragment_program;
GLuint lookup = 0;
GLuint line_aa;
bool program_uses_dfdy = fp->program.UsesDFdy;
+ bool multisample_fbo = ctx->DrawBuffer->Visual.samples > 1;
memset(key, 0, sizeof(*key));
key->line_aa = line_aa;
/* _NEW_HINT */
- if (brw->disable_derivative_optimization) {
- key->high_quality_derivatives =
- ctx->Hint.FragmentShaderDerivative != GL_FASTEST;
- } else {
- key->high_quality_derivatives =
- ctx->Hint.FragmentShaderDerivative == GL_NICEST;
- }
+ key->high_quality_derivatives =
+ ctx->Hint.FragmentShaderDerivative == GL_NICEST;
if (brw->gen < 6)
key->stats_wm = brw->stats_wm;
key->replicate_alpha = ctx->DrawBuffer->_NumColorDrawBuffers > 1 &&
(ctx->Multisample.SampleAlphaToCoverage || ctx->Color.AlphaEnabled);
+ /* _NEW_BUFFERS _NEW_MULTISAMPLE */
+ /* Ignore sample qualifier while computing this flag. */
+ key->persample_shading =
+ _mesa_get_min_invocations_per_fragment(ctx, &fp->program, true) > 1;
+ if (key->persample_shading)
+ key->persample_2x = ctx->DrawBuffer->Visual.samples == 2;
+
+ key->compute_pos_offset =
+ _mesa_get_min_invocations_per_fragment(ctx, &fp->program, false) > 1 &&
+ fp->program.Base.SystemValuesRead & SYSTEM_BIT_SAMPLE_POS;
+
+ key->compute_sample_id =
+ multisample_fbo &&
+ ctx->Multisample.Enabled &&
+ (fp->program.Base.SystemValuesRead & SYSTEM_BIT_SAMPLE_ID);
+
/* BRW_NEW_VUE_MAP_GEOM_OUT */
if (brw->gen < 6 || _mesa_bitcount_64(fp->program.Base.InputsRead &
BRW_FS_VARYING_INPUT_MASK) > 16)
key->input_slots_valid = brw->vue_map_geom_out.slots_valid;
+
+ /* _NEW_COLOR | _NEW_BUFFERS */
+ /* Pre-gen6, the hardware alpha test always used each render
+ * target's alpha to do alpha test, as opposed to render target 0's alpha
+ * like GL requires. Fix that by building the alpha test into the
+ * shader, and we'll skip enabling the fixed function alpha test.
+ */
+ if (brw->gen < 6 && ctx->DrawBuffer->_NumColorDrawBuffers > 1 && ctx->Color.AlphaEnabled) {
+ key->alpha_test_func = ctx->Color.AlphaFunc;
+ key->alpha_test_ref = ctx->Color.AlphaRef;
+ }
+
/* The unique fragment program ID */
key->program_string_id = fp->id;
}
-
-static void
+void
brw_upload_wm_prog(struct brw_context *brw)
{
struct gl_context *ctx = &brw->ctx;
struct brw_fragment_program *fp = (struct brw_fragment_program *)
brw->fragment_program;
+ if (!brw_state_dirty(brw,
+ _NEW_BUFFERS |
+ _NEW_COLOR |
+ _NEW_DEPTH |
+ _NEW_FRAG_CLAMP |
+ _NEW_HINT |
+ _NEW_LIGHT |
+ _NEW_LINE |
+ _NEW_MULTISAMPLE |
+ _NEW_POLYGON |
+ _NEW_STENCIL |
+ _NEW_TEXTURE,
+ BRW_NEW_FRAGMENT_PROGRAM |
+ BRW_NEW_REDUCED_PRIMITIVE |
+ BRW_NEW_STATS_WM |
+ BRW_NEW_VUE_MAP_GEOM_OUT))
+ return;
+
brw_wm_populate_key(brw, &key);
- if (!brw_search_cache(&brw->cache, BRW_WM_PROG,
+ if (!brw_search_cache(&brw->cache, BRW_CACHE_FS_PROG,
&key, sizeof(key),
&brw->wm.base.prog_offset, &brw->wm.prog_data)) {
- bool success = do_wm_prog(brw, ctx->Shader._CurrentFragmentProgram, fp,
+ bool success = do_wm_prog(brw, ctx->_Shader->_CurrentFragmentProgram, fp,
&key);
(void) success;
assert(success);
}
+ brw->wm.base.prog_data = &brw->wm.prog_data->base;
}
-
-
-const struct brw_tracked_state brw_wm_prog = {
- .dirty = {
- .mesa = (_NEW_COLOR |
- _NEW_DEPTH |
- _NEW_STENCIL |
- _NEW_POLYGON |
- _NEW_LINE |
- _NEW_HINT |
- _NEW_LIGHT |
- _NEW_FRAG_CLAMP |
- _NEW_BUFFERS |
- _NEW_TEXTURE |
- _NEW_MULTISAMPLE),
- .brw = (BRW_NEW_FRAGMENT_PROGRAM |
- BRW_NEW_REDUCED_PRIMITIVE |
- BRW_NEW_VUE_MAP_GEOM_OUT |
- BRW_NEW_STATS_WM)
- },
- .emit = brw_upload_wm_prog
-};
-
projects / mesa.git / blobdiff