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[g3dvl] move z-coord generation for multiple render targets into vertex shader

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This commit is contained in:
Christian König
2010-12-10 12:05:30 +01:00
parent 4a8420513d
commit ab130400cf
1 changed files with 18 additions and 16 deletions
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src/gallium/auxiliary/vl/vl_idct.c
+18 -16
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@@ -119,7 +119,17 @@ create_vert_shader(struct vl_idct *idct)
ureg_MOV(shader, ureg_writemask(o_vpos, TGSI_WRITEMASK_ZW), vpos);
ureg_MOV(shader, ureg_writemask(o_block, TGSI_WRITEMASK_XY), vrect);
ureg_MOV(shader, ureg_writemask(o_block, TGSI_WRITEMASK_Z), ureg_imm1f(shader, 0.0f));
ureg_MOV(shader, ureg_writemask(o_tex, TGSI_WRITEMASK_XY), ureg_src(t_vpos));
#if NR_RENDER_TARGETS == 1
ureg_MOV(shader, ureg_writemask(o_tex, TGSI_WRITEMASK_Z), ureg_imm1f(shader, 0.0f));
#else
ureg_MUL(shader, ureg_writemask(o_tex, TGSI_WRITEMASK_Z),
ureg_scalar(vrect, TGSI_SWIZZLE_X),
ureg_imm1f(shader, BLOCK_WIDTH / NR_RENDER_TARGETS));
#endif
ureg_MUL(shader, ureg_writemask(o_start, TGSI_WRITEMASK_XY), vpos, scale);
ureg_release_temporary(shader, t_vpos);
@@ -132,8 +142,8 @@ create_vert_shader(struct vl_idct *idct)
static void
fetch_four(struct ureg_program *shader, struct ureg_dst m[2],
struct ureg_src tc, struct ureg_src sampler,
struct ureg_src start, struct ureg_src block,
bool right_side, bool transposed, float size)
struct ureg_src start, bool right_side,
bool transposed, float size)
{
struct ureg_dst t_tc;
unsigned wm_start = (right_side == transposed) ? TGSI_WRITEMASK_X : TGSI_WRITEMASK_Y;
@@ -155,15 +165,7 @@ fetch_four(struct ureg_program *shader, struct ureg_dst m[2],
ureg_MOV(shader, ureg_writemask(t_tc, wm_start), ureg_scalar(start, TGSI_SWIZZLE_Y));
ureg_MOV(shader, ureg_writemask(t_tc, wm_tc), ureg_scalar(tc, TGSI_SWIZZLE_X));
}
#if NR_RENDER_TARGETS == 1
ureg_MOV(shader, ureg_writemask(t_tc, TGSI_WRITEMASK_Z), ureg_imm1f(shader, 0.0f));
#else
ureg_MUL(shader, ureg_writemask(t_tc, TGSI_WRITEMASK_Z),
ureg_scalar(block, TGSI_SWIZZLE_X),
ureg_imm1f(shader, 8.0f / NR_RENDER_TARGETS));
ureg_FRC(shader, ureg_writemask(t_tc, TGSI_WRITEMASK_Z), ureg_src(t_tc));
#endif
ureg_FRC(shader, ureg_writemask(t_tc, TGSI_WRITEMASK_Z), tc);
ureg_TEX(shader, m[0], TGSI_TEXTURE_3D, ureg_src(t_tc), sampler);
ureg_ADD(shader, ureg_writemask(t_tc, wm_start), ureg_src(t_tc), ureg_imm1f(shader, 1.0f / size));
@@ -221,8 +223,8 @@ create_transpose_frag_shader(struct vl_idct *idct)
start[0] = ureg_imm1f(shader, 0.0f);
start[1] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_START, TGSI_INTERPOLATE_CONSTANT);
fetch_four(shader, l, block, sampler[0], start[0], block, false, false, BLOCK_WIDTH / 4);
fetch_four(shader, r, tex, sampler[1], start[1], block, true, false, idct->buffer_height / 4);
fetch_four(shader, l, block, sampler[0], start[0], false, false, BLOCK_WIDTH / 4);
fetch_four(shader, r, tex, sampler[1], start[1], true, false, idct->buffer_height / 4);
fragment = ureg_DECL_output(shader, TGSI_SEMANTIC_COLOR, 0);
@@ -280,18 +282,18 @@ create_matrix_frag_shader(struct vl_idct *idct)
ureg_ADD(shader, ureg_writemask(t_tc, TGSI_WRITEMASK_Y),
ureg_src(t_tc), ureg_imm1f(shader, 1.0f / idct->buffer_height));
fetch_four(shader, l[i], ureg_src(t_tc), sampler[0], start[0], block, false, false, idct->buffer_width / 4);
fetch_four(shader, l[i], ureg_src(t_tc), sampler[0], start[0], false, false, idct->buffer_width / 4);
}
for (i = 0; i < NR_RENDER_TARGETS; ++i) {
#if NR_RENDER_TARGETS == 1
fetch_four(shader, r, block, sampler[1], start[1], block, true, true, BLOCK_WIDTH / 4);
fetch_four(shader, r, block, sampler[1], start[1], true, true, BLOCK_WIDTH / 4);
#else
ureg_ADD(shader, ureg_writemask(t_tc, TGSI_WRITEMASK_X),
ureg_imm1f(shader, 1.0f / BLOCK_WIDTH * i),
block);
fetch_four(shader, r, ureg_src(t_tc), sampler[1], start[1], block, true, true, BLOCK_WIDTH / 4);
fetch_four(shader, r, ureg_src(t_tc), sampler[1], start[1], true, true, BLOCK_WIDTH / 4);
#endif
for (j = 0; j < 4; ++j) {