[PATCH 1/5] wined3d: Select the component by editing the swizzle.
Stefan Dösinger
stefan at codeweavers.com
Thu Mar 27 05:46:10 CDT 2014
The strcat approach does not work if shader_arb_get_src_param returns
something like |R0| or when the parameter is a vertex attribute register
that needs D3DCOLOR swizzling.
I don't think merging this functionality into shader_arb_get_src_param
makes sense. It's needed in two places only and I don't see the point in
adding an extra parameter for it.
---
dlls/wined3d/arb_program_shader.c | 21 ++++++++++++---------
1 file changed, 12 insertions(+), 9 deletions(-)
diff --git a/dlls/wined3d/arb_program_shader.c b/dlls/wined3d/arb_program_shader.c
index 1eab0eb..fdad2d0 100644
--- a/dlls/wined3d/arb_program_shader.c
+++ b/dlls/wined3d/arb_program_shader.c
@@ -1792,6 +1792,11 @@ static void shader_hw_map2gl(const struct wined3d_shader_instruction *ins)
static void shader_hw_nop(const struct wined3d_shader_instruction *ins) {}
+static DWORD shader_arb_select_component(DWORD swizzle, DWORD component)
+{
+ return ((swizzle >> 2 * component) & 0x3) * 0x55;
+}
+
static void shader_hw_mov(const struct wined3d_shader_instruction *ins)
{
const struct wined3d_shader *shader = ins->ctx->shader;
@@ -1862,7 +1867,7 @@ static void shader_hw_mov(const struct wined3d_shader_instruction *ins)
* with more than one component. Thus replicate the first source argument over all
* 4 components. For example, .xyzw -> .x (or better: .xxxx), .zwxy -> .z, etc) */
struct wined3d_shader_src_param tmp_src = ins->src[0];
- tmp_src.swizzle = (tmp_src.swizzle & 0x3) * 0x55;
+ tmp_src.swizzle = shader_arb_select_component(tmp_src.swizzle, 0);
shader_arb_get_src_param(ins, &tmp_src, 0, src0_param);
shader_addline(buffer, "ARL A0.x, %s;\n", src0_param);
}
@@ -2496,6 +2501,7 @@ static void shader_hw_scalar_op(const struct wined3d_shader_instruction *ins)
{
struct wined3d_shader_buffer *buffer = ins->ctx->buffer;
const char *instruction;
+ struct wined3d_shader_src_param src0_copy = ins->src[0];
char dst[50];
char src[50];
@@ -2511,15 +2517,12 @@ static void shader_hw_scalar_op(const struct wined3d_shader_instruction *ins)
break;
}
+ /* Dx sdk says .x is used if no swizzle is given, but our test shows that
+ * .w is used. */
+ src0_copy.swizzle = shader_arb_select_component(src0_copy.swizzle, 3);
+
shader_arb_get_dst_param(ins, &ins->dst[0], dst); /* Destination */
- shader_arb_get_src_param(ins, &ins->src[0], 0, src);
- if (ins->src[0].swizzle == WINED3DSP_NOSWIZZLE)
- {
- /* Dx sdk says .x is used if no swizzle is given, but our test shows that
- * .w is used
- */
- strcat(src, ".w");
- }
+ shader_arb_get_src_param(ins, &src0_copy, 0, src);
shader_addline(buffer, "%s%s %s, %s;\n", instruction, shader_arb_get_modifier(ins), dst, src);
}
--
1.8.3.2
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