diff options
Diffstat (limited to 'src/gallium/drivers/softpipe/sp_quad_fs.c')
-rw-r--r-- | src/gallium/drivers/softpipe/sp_quad_fs.c | 417 |
1 files changed, 209 insertions, 208 deletions
diff --git a/src/gallium/drivers/softpipe/sp_quad_fs.c b/src/gallium/drivers/softpipe/sp_quad_fs.c index 1fbb2e38c4..9198198db3 100644 --- a/src/gallium/drivers/softpipe/sp_quad_fs.c +++ b/src/gallium/drivers/softpipe/sp_quad_fs.c @@ -1,208 +1,209 @@ -/************************************************************************** - * - * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. - * All Rights Reserved. - * - * 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 - * without limitation the rights to use, copy, modify, merge, publish, - * distribute, sub license, 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 NON-INFRINGEMENT. - * IN NO EVENT SHALL TUNGSTEN GRAPHICS 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. - * - **************************************************************************/ - -/* Vertices are just an array of floats, with all the attributes - * packed. We currently assume a layout like: - * - * attr[0][0..3] - window position - * attr[1..n][0..3] - remaining attributes. - * - * Attributes are assumed to be 4 floats wide but are packed so that - * all the enabled attributes run contiguously. - */ - -#include "pipe/p_util.h" -#include "pipe/p_defines.h" -#include "pipe/p_shader_tokens.h" - -#include "sp_context.h" -#include "sp_state.h" -#include "sp_headers.h" -#include "sp_quad.h" -#include "sp_texture.h" -#include "sp_tex_sample.h" - - -struct quad_shade_stage -{ - struct quad_stage stage; - struct tgsi_sampler samplers[PIPE_MAX_SAMPLERS]; - struct tgsi_exec_machine machine; - struct tgsi_exec_vector *inputs, *outputs; - int colorOutSlot, depthOutSlot; -}; - - -/** cast wrapper */ -static INLINE struct quad_shade_stage * -quad_shade_stage(struct quad_stage *qs) -{ - return (struct quad_shade_stage *) qs; -} - - - -/** - * Execute fragment shader for the four fragments in the quad. - */ -static void -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; - - /* Consts do not require 16 byte alignment. */ - machine->Consts = softpipe->mapped_constants[PIPE_SHADER_FRAGMENT]; - - machine->InterpCoefs = quad->coef; - - /* run shader */ - quad->mask &= softpipe->fs->run( softpipe->fs, - &qss->machine, - quad ); - - /* store result color */ - if (qss->colorOutSlot >= 0) { - /* XXX need to handle multiple color outputs someday */ - assert(qss->stage.softpipe->fs->info.output_semantic_name[qss->colorOutSlot] - == TGSI_SEMANTIC_COLOR); - memcpy( - quad->outputs.color, - &machine->Outputs[qss->colorOutSlot].xyzw[0].f[0], - sizeof( quad->outputs.color ) ); - } - - /* - * XXX the following code for updating quad->outputs.depth - * isn't really needed if we did early z testing. - */ - - /* store result Z */ - if (qss->depthOutSlot >= 0) { - /* output[slot] is new Z */ - uint i; - for (i = 0; i < 4; i++) { - quad->outputs.depth[i] = machine->Outputs[0].xyzw[2].f[i]; - } - } - else { - /* copy input Z (which was interpolated by the executor) to output Z */ - uint i; - for (i = 0; i < 4; i++) { - quad->outputs.depth[i] = machine->Inputs[0].xyzw[2].f[i]; - /* XXX not sure the above line is always correct. The following - * might be better: - quad->outputs.depth[i] = machine->QuadPos.xyzw[2].f[i]; - */ - } - } - - /* shader may cull fragments */ - if( quad->mask ) { - qs->next->run( qs->next, quad ); - } -} - -/** - * 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; - unsigned i; - - /* set TGSI sampler state that varies */ - for (i = 0; i < PIPE_MAX_SAMPLERS; i++) { - qss->samplers[i].state = softpipe->sampler[i]; - qss->samplers[i].texture = softpipe->texture[i]; - } - - /* find output slots for depth, color */ - qss->colorOutSlot = -1; - qss->depthOutSlot = -1; - for (i = 0; i < qss->stage.softpipe->fs->info.num_outputs; i++) { - switch (qss->stage.softpipe->fs->info.output_semantic_name[i]) { - case TGSI_SEMANTIC_POSITION: - qss->depthOutSlot = i; - break; - case TGSI_SEMANTIC_COLOR: - qss->colorOutSlot = i; - break; - } - } - - softpipe->fs->prepare( softpipe->fs, - &qss->machine, - qss->samplers ); - - 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_free_data(&qss->machine); - FREE( qss->inputs ); - FREE( qss->outputs ); - FREE( qs ); -} - - -struct quad_stage *sp_quad_shade_stage( struct softpipe_context *softpipe ) -{ - struct quad_shade_stage *qss = CALLOC_STRUCT(quad_shade_stage); - uint i; - - /* allocate storage for program inputs/outputs, aligned to 16 bytes */ - qss->inputs = MALLOC(PIPE_ATTRIB_MAX * sizeof(*qss->inputs) + 16); - qss->outputs = MALLOC(PIPE_ATTRIB_MAX * sizeof(*qss->outputs) + 16); - qss->machine.Inputs = align16(qss->inputs); - qss->machine.Outputs = align16(qss->outputs); - - qss->stage.softpipe = softpipe; - qss->stage.begin = shade_begin; - qss->stage.run = shade_quad; - qss->stage.destroy = shade_destroy; - - /* set TGSI sampler state that's constant */ - for (i = 0; i < PIPE_MAX_SAMPLERS; i++) { - assert(softpipe->tex_cache[i]); - qss->samplers[i].get_samples = sp_get_samples; - qss->samplers[i].pipe = &softpipe->pipe; - qss->samplers[i].cache = softpipe->tex_cache[i]; - } - - tgsi_exec_machine_init( &qss->machine ); - - return &qss->stage; -} +/**************************************************************************
+ *
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * 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
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, 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 NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS 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.
+ *
+ **************************************************************************/
+
+/* Vertices are just an array of floats, with all the attributes
+ * packed. We currently assume a layout like:
+ *
+ * attr[0][0..3] - window position
+ * attr[1..n][0..3] - remaining attributes.
+ *
+ * Attributes are assumed to be 4 floats wide but are packed so that
+ * all the enabled attributes run contiguously.
+ */
+
+#include "pipe/p_util.h"
+#include "pipe/p_defines.h"
+#include "pipe/p_shader_tokens.h"
+
+#include "sp_context.h"
+#include "sp_state.h"
+#include "sp_headers.h"
+#include "sp_quad.h"
+#include "sp_texture.h"
+#include "sp_tex_sample.h"
+
+
+struct quad_shade_stage
+{
+ struct quad_stage stage;
+ struct tgsi_sampler samplers[PIPE_MAX_SAMPLERS];
+ struct tgsi_exec_machine machine;
+ struct tgsi_exec_vector *inputs, *outputs;
+ int colorOutSlot, depthOutSlot;
+};
+
+
+/** cast wrapper */
+static INLINE struct quad_shade_stage *
+quad_shade_stage(struct quad_stage *qs)
+{
+ return (struct quad_shade_stage *) qs;
+}
+
+
+
+/**
+ * Execute fragment shader for the four fragments in the quad.
+ */
+static void
+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;
+
+ /* Consts do not require 16 byte alignment. */
+ machine->Consts = softpipe->mapped_constants[PIPE_SHADER_FRAGMENT];
+
+ machine->InterpCoefs = quad->coef;
+
+ /* run shader */
+ quad->mask &= softpipe->fs->run( softpipe->fs,
+ &qss->machine,
+ quad );
+
+ /* store result color */
+ if (qss->colorOutSlot >= 0) {
+ /* XXX need to handle multiple color outputs someday */
+ assert(qss->stage.softpipe->fs->info.output_semantic_name[qss->colorOutSlot]
+ == TGSI_SEMANTIC_COLOR);
+ memcpy(
+ quad->outputs.color,
+ &machine->Outputs[qss->colorOutSlot].xyzw[0].f[0],
+ sizeof( quad->outputs.color ) );
+ }
+
+ /*
+ * XXX the following code for updating quad->outputs.depth
+ * isn't really needed if we did early z testing.
+ */
+
+ /* store result Z */
+ if (qss->depthOutSlot >= 0) {
+ /* output[slot] is new Z */
+ uint i;
+ for (i = 0; i < 4; i++) {
+ quad->outputs.depth[i] = machine->Outputs[0].xyzw[2].f[i];
+ }
+ }
+ else {
+ /* copy input Z (which was interpolated by the executor) to output Z */
+ uint i;
+ for (i = 0; i < 4; i++) {
+ quad->outputs.depth[i] = machine->Inputs[0].xyzw[2].f[i];
+ /* XXX not sure the above line is always correct. The following
+ * might be better:
+ quad->outputs.depth[i] = machine->QuadPos.xyzw[2].f[i];
+ */
+ }
+ }
+
+ /* shader may cull fragments */
+ if( quad->mask ) {
+ qs->next->run( qs->next, quad );
+ }
+}
+
+/**
+ * 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;
+ unsigned i;
+ unsigned num = MAX2(softpipe->num_textures, softpipe->num_samplers);
+
+ /* set TGSI sampler state that varies */
+ for (i = 0; i < num; i++) {
+ qss->samplers[i].state = softpipe->sampler[i];
+ qss->samplers[i].texture = softpipe->texture[i];
+ }
+
+ /* find output slots for depth, color */
+ qss->colorOutSlot = -1;
+ qss->depthOutSlot = -1;
+ for (i = 0; i < qss->stage.softpipe->fs->info.num_outputs; i++) {
+ switch (qss->stage.softpipe->fs->info.output_semantic_name[i]) {
+ case TGSI_SEMANTIC_POSITION:
+ qss->depthOutSlot = i;
+ break;
+ case TGSI_SEMANTIC_COLOR:
+ qss->colorOutSlot = i;
+ break;
+ }
+ }
+
+ softpipe->fs->prepare( softpipe->fs,
+ &qss->machine,
+ qss->samplers );
+
+ 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_free_data(&qss->machine);
+ FREE( qss->inputs );
+ FREE( qss->outputs );
+ FREE( qs );
+}
+
+
+struct quad_stage *sp_quad_shade_stage( struct softpipe_context *softpipe )
+{
+ struct quad_shade_stage *qss = CALLOC_STRUCT(quad_shade_stage);
+ uint i;
+
+ /* allocate storage for program inputs/outputs, aligned to 16 bytes */
+ qss->inputs = MALLOC(PIPE_ATTRIB_MAX * sizeof(*qss->inputs) + 16);
+ qss->outputs = MALLOC(PIPE_ATTRIB_MAX * sizeof(*qss->outputs) + 16);
+ qss->machine.Inputs = align16(qss->inputs);
+ qss->machine.Outputs = align16(qss->outputs);
+
+ qss->stage.softpipe = softpipe;
+ qss->stage.begin = shade_begin;
+ qss->stage.run = shade_quad;
+ qss->stage.destroy = shade_destroy;
+
+ /* set TGSI sampler state that's constant */
+ for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
+ assert(softpipe->tex_cache[i]);
+ qss->samplers[i].get_samples = sp_get_samples;
+ qss->samplers[i].pipe = &softpipe->pipe;
+ qss->samplers[i].cache = softpipe->tex_cache[i];
+ }
+
+ tgsi_exec_machine_init( &qss->machine );
+
+ return &qss->stage;
+}
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