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authorKeith Whitwell <keithw@vmware.com>2009-08-11 18:06:16 +0100
committerKeith Whitwell <keithw@vmware.com>2009-08-11 18:06:16 +0100
commitda319095f2ca8869657ebda0db54eb9b2f7393ce (patch)
treeff222bc12f097c2fa1116b3a5bfff57701d5cecb /src/gallium/drivers/softpipe
parentb5c389721aec09c260789e6371910937f15ef1a0 (diff)
softpipe: reduce textual differences between exec and sse shader paths
Unshare one function (setup_pos_vector) as we want to push this code into the generated shader in the SSE case.
Diffstat (limited to 'src/gallium/drivers/softpipe')
-rw-r--r--src/gallium/drivers/softpipe/sp_fs_exec.c51
-rw-r--r--src/gallium/drivers/softpipe/sp_fs_sse.c50
2 files changed, 69 insertions, 32 deletions
diff --git a/src/gallium/drivers/softpipe/sp_fs_exec.c b/src/gallium/drivers/softpipe/sp_fs_exec.c
index 91e04687c5..c469ac6340 100644
--- a/src/gallium/drivers/softpipe/sp_fs_exec.c
+++ b/src/gallium/drivers/softpipe/sp_fs_exec.c
@@ -59,15 +59,34 @@ sp_exec_fragment_shader(const struct sp_fragment_shader *base)
}
+static void
+exec_prepare( const struct sp_fragment_shader *base,
+ struct tgsi_exec_machine *machine,
+ struct tgsi_sampler **samplers )
+{
+ /*
+ * Bind tokens/shader to the interpreter's machine state.
+ * Avoid redundant binding.
+ */
+ if (machine->Tokens != base->shader.tokens) {
+ tgsi_exec_machine_bind_shader( machine,
+ base->shader.tokens,
+ PIPE_MAX_SAMPLERS,
+ samplers );
+ }
+}
+
+
+
/**
* Compute quad X,Y,Z,W for the four fragments in a quad.
*
* This should really be part of the compiled shader.
*/
-void
-sp_setup_pos_vector(const struct tgsi_interp_coef *coef,
- float x, float y,
- struct tgsi_exec_vector *quadpos)
+static void
+setup_pos_vector(const struct tgsi_interp_coef *coef,
+ float x, float y,
+ struct tgsi_exec_vector *quadpos)
{
uint chan;
/* do X */
@@ -95,24 +114,6 @@ sp_setup_pos_vector(const struct tgsi_interp_coef *coef,
}
-static void
-exec_prepare( const struct sp_fragment_shader *base,
- struct tgsi_exec_machine *machine,
- struct tgsi_sampler **samplers )
-{
- /*
- * Bind tokens/shader to the interpreter's machine state.
- * Avoid redundant binding.
- */
- if (machine->Tokens != base->shader.tokens) {
- tgsi_exec_machine_bind_shader( machine,
- base->shader.tokens,
- PIPE_MAX_SAMPLERS,
- samplers );
- }
-}
-
-
/* TODO: hide the machine struct in here somewhere, remove from this
* interface:
*/
@@ -122,9 +123,9 @@ exec_run( const struct sp_fragment_shader *base,
struct quad_header *quad )
{
/* Compute X, Y, Z, W vals for this quad */
- sp_setup_pos_vector(quad->posCoef,
- (float)quad->input.x0, (float)quad->input.y0,
- &machine->QuadPos);
+ setup_pos_vector(quad->posCoef,
+ (float)quad->input.x0, (float)quad->input.y0,
+ &machine->QuadPos);
quad->inout.mask &= tgsi_exec_machine_run( machine );
if (quad->inout.mask == 0)
diff --git a/src/gallium/drivers/softpipe/sp_fs_sse.c b/src/gallium/drivers/softpipe/sp_fs_sse.c
index 364bb94a5f..9d3e4670ee 100644
--- a/src/gallium/drivers/softpipe/sp_fs_sse.c
+++ b/src/gallium/drivers/softpipe/sp_fs_sse.c
@@ -76,6 +76,43 @@ fs_sse_prepare( const struct sp_fragment_shader *base,
}
+
+/**
+ * Compute quad X,Y,Z,W for the four fragments in a quad.
+ *
+ * This should really be part of the compiled shader.
+ */
+static void
+setup_pos_vector(const struct tgsi_interp_coef *coef,
+ float x, float y,
+ struct tgsi_exec_vector *quadpos)
+{
+ uint chan;
+ /* do X */
+ quadpos->xyzw[0].f[0] = x;
+ quadpos->xyzw[0].f[1] = x + 1;
+ quadpos->xyzw[0].f[2] = x;
+ quadpos->xyzw[0].f[3] = x + 1;
+
+ /* do Y */
+ quadpos->xyzw[1].f[0] = y;
+ quadpos->xyzw[1].f[1] = y;
+ quadpos->xyzw[1].f[2] = y + 1;
+ quadpos->xyzw[1].f[3] = y + 1;
+
+ /* do Z and W for all fragments in the quad */
+ for (chan = 2; chan < 4; chan++) {
+ const float dadx = coef->dadx[chan];
+ const float dady = coef->dady[chan];
+ const float a0 = coef->a0[chan] + dadx * x + dady * y;
+ quadpos->xyzw[chan].f[0] = a0;
+ quadpos->xyzw[chan].f[1] = a0 + dadx;
+ quadpos->xyzw[chan].f[2] = a0 + dady;
+ quadpos->xyzw[chan].f[3] = a0 + dadx + dady;
+ }
+}
+
+
/* TODO: codegenerate the whole run function, skip this wrapper.
* TODO: break dependency on tgsi_exec_machine struct
* TODO: push Position calculation into the generated shader
@@ -89,9 +126,9 @@ fs_sse_run( const struct sp_fragment_shader *base,
struct sp_sse_fragment_shader *shader = sp_sse_fragment_shader(base);
/* Compute X, Y, Z, W vals for this quad -- place in temp[0] for now */
- sp_setup_pos_vector(quad->posCoef,
- (float)quad->input.x0, (float)quad->input.y0,
- machine->Temps);
+ setup_pos_vector(quad->posCoef,
+ (float)quad->input.x0, (float)quad->input.y0,
+ machine->Temps);
/* init kill mask */
tgsi_set_kill_mask(machine, 0x0);
@@ -108,12 +145,11 @@ fs_sse_run( const struct sp_fragment_shader *base,
if (quad->inout.mask == 0)
return FALSE;
-
/* store outputs */
{
- const ubyte *sem_name = shader->base.info.output_semantic_name;
- const ubyte *sem_index = shader->base.info.output_semantic_index;
- const uint n = shader->base.info.num_outputs;
+ const ubyte *sem_name = base->info.output_semantic_name;
+ const ubyte *sem_index = base->info.output_semantic_index;
+ const uint n = base->info.num_outputs;
uint i;
for (i = 0; i < n; i++) {
switch (sem_name[i]) {