/**************************************************************************
*
- * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * Copyright 2007 VMware, Inc.
* All Rights Reserved.
* Copyright 2008 VMware, Inc. All rights reserved.
*
* 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 NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE 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.
#include "sp_state.h"
#include "sp_quad.h"
#include "sp_quad_pipe.h"
-#include "sp_texture.h"
-#include "sp_tex_sample.h"
struct quad_shade_stage
{
struct quad_stage stage; /**< base class */
- struct tgsi_exec_machine *machine;
- struct tgsi_exec_vector *inputs, *outputs;
-};
-
-/** cast wrapper */
-static INLINE struct quad_shade_stage *
-quad_shade_stage(struct quad_stage *qs)
-{
- return (struct quad_shade_stage *) qs;
-}
+ /* no other fields at this time */
+};
/**
* Execute fragment shader for the four fragments in the quad.
+ * \return TRUE if quad is alive, FALSE if all four pixels are killed
*/
-static INLINE boolean
+static inline boolean
shade_quad(struct quad_stage *qs, struct quad_header *quad)
{
- struct quad_shade_stage *qss = quad_shade_stage( qs );
struct softpipe_context *softpipe = qs->softpipe;
- struct tgsi_exec_machine *machine = qss->machine;
+ struct tgsi_exec_machine *machine = softpipe->fs_machine;
+
+ if (softpipe->active_statistics_queries) {
+ softpipe->pipeline_statistics.ps_invocations +=
+ util_bitcount(quad->inout.mask);
+ }
/* run shader */
- return softpipe->fs->run( softpipe->fs, machine, quad );
+ machine->flatshade_color = softpipe->rasterizer->flatshade ? TRUE : FALSE;
+ return softpipe->fs_variant->run( softpipe->fs_variant, machine, quad, softpipe->early_depth );
}
for (cbuf = 0; cbuf < softpipe->framebuffer.nr_cbufs; cbuf++) {
float (*quadColor)[4] = quad->output.color[cbuf];
unsigned j;
- for (j = 0; j < QUAD_SIZE; j++) {
+ for (j = 0; j < TGSI_QUAD_SIZE; j++) {
assert(quad->input.coverage[j] >= 0.0);
assert(quad->input.coverage[j] <= 1.0);
quadColor[3][j] *= quad->input.coverage[j];
}
-
+/**
+ * Shade/write an array of quads
+ * Called via quad_stage::run()
+ */
static void
shade_quads(struct quad_stage *qs,
- struct quad_header *quads[],
- unsigned nr)
+ struct quad_header *quads[],
+ unsigned nr)
{
- struct quad_shade_stage *qss = quad_shade_stage( qs );
struct softpipe_context *softpipe = qs->softpipe;
- struct tgsi_exec_machine *machine = qss->machine;
+ struct tgsi_exec_machine *machine = softpipe->fs_machine;
+ unsigned i, nr_quads = 0;
+
+ tgsi_exec_set_constant_buffers(machine, PIPE_MAX_CONSTANT_BUFFERS,
+ softpipe->mapped_constants[PIPE_SHADER_FRAGMENT],
+ softpipe->const_buffer_size[PIPE_SHADER_FRAGMENT]);
- unsigned i, pass = 0;
-
- machine->Consts = softpipe->mapped_constants[PIPE_SHADER_FRAGMENT];
machine->InterpCoefs = quads[0]->coef;
for (i = 0; i < nr; i++) {
- if (!shade_quad(qs, quads[i]))
- continue;
+ /* Only omit this quad from the output list if all the fragments
+ * are killed _AND_ it's not the first quad in the list.
+ * The first quad is special in the (optimized) depth-testing code:
+ * the quads' Z coordinates are step-wise interpolated with respect
+ * to the first quad in the list.
+ * For multi-pass algorithms we need to produce exactly the same
+ * Z values in each pass. If interpolation starts with different quads
+ * we can get different Z values for the same (x,y).
+ */
+ if (!shade_quad(qs, quads[i]) && i > 0)
+ continue; /* quad totally culled/killed */
if (/*do_coverage*/ 0)
coverage_quad( qs, quads[i] );
- quads[pass++] = quads[i];
+ quads[nr_quads++] = quads[i];
}
- if (pass)
- qs->next->run(qs->next, quads, pass);
+ if (nr_quads)
+ qs->next->run(qs->next, quads, nr_quads);
}
-
-
-
/**
* Per-primitive (or per-begin?) setup
*/
static void
shade_begin(struct quad_stage *qs)
{
- struct quad_shade_stage *qss = quad_shade_stage(qs);
- struct softpipe_context *softpipe = qs->softpipe;
-
- softpipe->fs->prepare( softpipe->fs,
- qss->machine,
- (struct tgsi_sampler **)
- softpipe->tgsi.frag_samplers_list );
-
qs->next->begin(qs->next);
}
static void
shade_destroy(struct quad_stage *qs)
{
- struct quad_shade_stage *qss = (struct quad_shade_stage *) qs;
-
- tgsi_exec_machine_destroy(qss->machine);
-
FREE( qs );
}
qss->stage.run = shade_quads;
qss->stage.destroy = shade_destroy;
- qss->machine = tgsi_exec_machine_create();
- if (!qss->machine)
- goto fail;
-
return &qss->stage;
fail:
- if (qss && qss->machine)
- tgsi_exec_machine_destroy(qss->machine);
-
FREE(qss);
return NULL;
}
projects / mesa.git / blobdiff