Mesa (mesa_7_5_branch): util: add version of u_blit_pixels which takes a writemask
Keith Whitwell
keithw at kemper.freedesktop.org
Wed Sep 2 17:42:31 UTC 2009
Module: Mesa
Branch: mesa_7_5_branch
Commit: de343680a3e6b2a588f8b3c844828b8d9e6cb6a5
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=de343680a3e6b2a588f8b3c844828b8d9e6cb6a5
Author: Keith Whitwell <keithw at vmware.com>
Date: Wed Sep 2 17:58:52 2009 +0100
util: add version of u_blit_pixels which takes a writemask
Values outside the writemask are set in the destination to {0,0,0,1}
---
src/gallium/auxiliary/util/u_blit.c | 55 +++++++++++++++++++------
src/gallium/auxiliary/util/u_blit.h | 11 +++++
src/gallium/auxiliary/util/u_simple_shaders.c | 45 +++++++++++++++++++-
src/gallium/auxiliary/util/u_simple_shaders.h | 4 ++
4 files changed, 100 insertions(+), 15 deletions(-)
diff --git a/src/gallium/auxiliary/util/u_blit.c b/src/gallium/auxiliary/util/u_blit.c
index cda6dbd..c516317 100644
--- a/src/gallium/auxiliary/util/u_blit.c
+++ b/src/gallium/auxiliary/util/u_blit.c
@@ -62,7 +62,7 @@ struct blit_state
struct pipe_viewport_state viewport;
void *vs;
- void *fs;
+ void *fs[TGSI_WRITEMASK_XYZW + 1];
struct pipe_buffer *vbuf; /**< quad vertices */
unsigned vbuf_slot;
@@ -125,7 +125,7 @@ util_create_blit(struct pipe_context *pipe, struct cso_context *cso)
}
/* fragment shader */
- ctx->fs = util_make_fragment_tex_shader(pipe);
+ ctx->fs[TGSI_WRITEMASK_XYZW] = util_make_fragment_tex_shader(pipe);
ctx->vbuf = NULL;
/* init vertex data that doesn't change */
@@ -146,9 +146,13 @@ void
util_destroy_blit(struct blit_state *ctx)
{
struct pipe_context *pipe = ctx->pipe;
+ unsigned i;
pipe->delete_vs_state(pipe, ctx->vs);
- pipe->delete_fs_state(pipe, ctx->fs);
+
+ for (i = 0; i < Elements(ctx->fs); i++)
+ if (ctx->fs[i])
+ pipe->delete_fs_state(pipe, ctx->fs[i]);
pipe_buffer_reference(&ctx->vbuf, NULL);
@@ -299,14 +303,15 @@ regions_overlap(int srcX0, int srcY0,
* XXX need some control over blitting Z and/or stencil.
*/
void
-util_blit_pixels(struct blit_state *ctx,
- struct pipe_surface *src,
- int srcX0, int srcY0,
- int srcX1, int srcY1,
- struct pipe_surface *dst,
- int dstX0, int dstY0,
- int dstX1, int dstY1,
- float z, uint filter)
+util_blit_pixels_writemask(struct blit_state *ctx,
+ struct pipe_surface *src,
+ int srcX0, int srcY0,
+ int srcX1, int srcY1,
+ struct pipe_surface *dst,
+ int dstX0, int dstY0,
+ int dstX1, int dstY1,
+ float z, uint filter,
+ uint writemask)
{
struct pipe_context *pipe = ctx->pipe;
struct pipe_screen *screen = pipe->screen;
@@ -426,8 +431,11 @@ util_blit_pixels(struct blit_state *ctx,
/* texture */
cso_set_sampler_textures(ctx->cso, 1, &tex);
+ if (ctx->fs[writemask] == NULL)
+ ctx->fs[writemask] = util_make_fragment_tex_shader_writemask(pipe, writemask);
+
/* shaders */
- cso_set_fragment_shader_handle(ctx->cso, ctx->fs);
+ cso_set_fragment_shader_handle(ctx->cso, ctx->fs[writemask]);
cso_set_vertex_shader_handle(ctx->cso, ctx->vs);
/* drawing dest */
@@ -462,6 +470,27 @@ util_blit_pixels(struct blit_state *ctx,
}
+void
+util_blit_pixels(struct blit_state *ctx,
+ struct pipe_surface *src,
+ int srcX0, int srcY0,
+ int srcX1, int srcY1,
+ struct pipe_surface *dst,
+ int dstX0, int dstY0,
+ int dstX1, int dstY1,
+ float z, uint filter )
+{
+ util_blit_pixels_writemask( ctx, src,
+ srcX0, srcY0,
+ srcX1, srcY1,
+ dst,
+ dstX0, dstY0,
+ dstX1, dstY1,
+ z, filter,
+ TGSI_WRITEMASK_XYZW );
+}
+
+
/* Release vertex buffer at end of frame to avoid synchronous
* rendering.
*/
@@ -535,7 +564,7 @@ util_blit_pixels_tex(struct blit_state *ctx,
cso_set_sampler_textures(ctx->cso, 1, &tex);
/* shaders */
- cso_set_fragment_shader_handle(ctx->cso, ctx->fs);
+ cso_set_fragment_shader_handle(ctx->cso, ctx->fs[TGSI_WRITEMASK_XYZW]);
cso_set_vertex_shader_handle(ctx->cso, ctx->vs);
/* drawing dest */
diff --git a/src/gallium/auxiliary/util/u_blit.h b/src/gallium/auxiliary/util/u_blit.h
index c35bece..a102021 100644
--- a/src/gallium/auxiliary/util/u_blit.h
+++ b/src/gallium/auxiliary/util/u_blit.h
@@ -60,6 +60,17 @@ util_blit_pixels(struct blit_state *ctx,
int dstX1, int dstY1,
float z, uint filter);
+void
+util_blit_pixels_writemask(struct blit_state *ctx,
+ struct pipe_surface *src,
+ int srcX0, int srcY0,
+ int srcX1, int srcY1,
+ struct pipe_surface *dst,
+ int dstX0, int dstY0,
+ int dstX1, int dstY1,
+ float z, uint filter,
+ uint writemask);
+
extern void
util_blit_pixels_tex(struct blit_state *ctx,
struct pipe_texture *tex,
diff --git a/src/gallium/auxiliary/util/u_simple_shaders.c b/src/gallium/auxiliary/util/u_simple_shaders.c
index e519c35..acc5b83 100644
--- a/src/gallium/auxiliary/util/u_simple_shaders.c
+++ b/src/gallium/auxiliary/util/u_simple_shaders.c
@@ -152,11 +152,14 @@ util_make_vertex_passthrough_shader(struct pipe_context *pipe,
/**
* Make simple fragment texture shader:
- * TEX OUT[0], IN[0], SAMP[0], 2D;
+ * IMM {0,0,0,1} // (if writemask != 0xf)
+ * MOV OUT[0], IMM[0] // (if writemask != 0xf)
+ * TEX OUT[0].writemask, IN[0], SAMP[0], 2D;
* END;
*/
void *
-util_make_fragment_tex_shader(struct pipe_context *pipe)
+util_make_fragment_tex_shader_writemask(struct pipe_context *pipe,
+ unsigned writemask )
{
struct pipe_shader_state shader;
struct tgsi_token tokens[100];
@@ -217,12 +220,43 @@ util_make_fragment_tex_shader(struct pipe_context *pipe)
header,
Elements(tokens) - ti);
+
+ if (writemask != TGSI_WRITEMASK_XYZW) {
+ struct tgsi_full_immediate imm;
+ static const float value[4] = { 0, 0, 0, 1 };
+
+ imm = tgsi_default_full_immediate();
+ imm.Immediate.NrTokens += 4;
+ imm.Immediate.DataType = TGSI_IMM_FLOAT32;
+ imm.u.Pointer = value;
+
+ ti += tgsi_build_full_immediate(&imm,
+ &tokens[ti],
+ header,
+ Elements(tokens) - ti );
+
+ /* MOV instruction */
+ inst = tgsi_default_full_instruction();
+ inst.Instruction.Opcode = TGSI_OPCODE_MOV;
+ inst.Instruction.NumDstRegs = 1;
+ inst.FullDstRegisters[0].DstRegister.File = TGSI_FILE_OUTPUT;
+ inst.FullDstRegisters[0].DstRegister.Index = 0;
+ inst.Instruction.NumSrcRegs = 1;
+ inst.FullSrcRegisters[0].SrcRegister.File = TGSI_FILE_IMMEDIATE;
+ inst.FullSrcRegisters[0].SrcRegister.Index = 0;
+ ti += tgsi_build_full_instruction(&inst,
+ &tokens[ti],
+ header,
+ Elements(tokens) - ti );
+ }
+
/* TEX instruction */
inst = tgsi_default_full_instruction();
inst.Instruction.Opcode = TGSI_OPCODE_TEX;
inst.Instruction.NumDstRegs = 1;
inst.FullDstRegisters[0].DstRegister.File = TGSI_FILE_OUTPUT;
inst.FullDstRegisters[0].DstRegister.Index = 0;
+ inst.FullDstRegisters[0].DstRegister.WriteMask = writemask;
inst.Instruction.NumSrcRegs = 2;
inst.InstructionExtTexture.Texture = TGSI_TEXTURE_2D;
inst.FullSrcRegisters[0].SrcRegister.File = TGSI_FILE_INPUT;
@@ -253,6 +287,13 @@ util_make_fragment_tex_shader(struct pipe_context *pipe)
return pipe->create_fs_state(pipe, &shader);
}
+void *
+util_make_fragment_tex_shader(struct pipe_context *pipe )
+{
+ return util_make_fragment_tex_shader_writemask( pipe,
+ TGSI_WRITEMASK_XYZW );
+}
+
diff --git a/src/gallium/auxiliary/util/u_simple_shaders.h b/src/gallium/auxiliary/util/u_simple_shaders.h
index 6f8d96a..d2e80d6 100644
--- a/src/gallium/auxiliary/util/u_simple_shaders.h
+++ b/src/gallium/auxiliary/util/u_simple_shaders.h
@@ -50,6 +50,10 @@ util_make_vertex_passthrough_shader(struct pipe_context *pipe,
extern void *
+util_make_fragment_tex_shader_writemask(struct pipe_context *pipe,
+ unsigned writemask );
+
+extern void *
util_make_fragment_tex_shader(struct pipe_context *pipe);
More information about the mesa-commit
mailing list