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[g3dvl] cleanup naming convention and comments

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This commit is contained in:
Christian König 2010-11-06 17:08:55 +01:00
parent 34e5ae5aed
commit 725a5e15cf
1 changed files with 27 additions and 20 deletions
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47
src/gallium/auxiliary/vl/vl_mpeg12_mc_renderer.c
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@ -84,7 +84,7 @@ create_vert_shader(struct vl_mpeg12_mc_renderer *r, unsigned ref_frames, unsigne
struct ureg_program *shader;
struct ureg_src norm, mbs;
struct ureg_src vpos, vtex[3], vmv[4];
struct ureg_dst temp;
struct ureg_dst tmp;
struct ureg_dst o_vpos, o_vtex[3], o_vmv[4], o_line;
unsigned i, j, count;
@ -94,7 +94,7 @@ create_vert_shader(struct vl_mpeg12_mc_renderer *r, unsigned ref_frames, unsigne
norm = ureg_DECL_constant(shader, 0);
mbs = ureg_imm2f(shader, MACROBLOCK_WIDTH, MACROBLOCK_HEIGHT);
temp = ureg_DECL_temporary(shader);
tmp = ureg_DECL_temporary(shader);
vpos = ureg_DECL_vs_input(shader, 0);
o_vpos = ureg_DECL_output(shader, TGSI_SEMANTIC_POSITION, 0);
@ -123,27 +123,31 @@ create_vert_shader(struct vl_mpeg12_mc_renderer *r, unsigned ref_frames, unsigne
/*
* o_vpos = vpos * norm * mbs
* o_vtex[0..2] = vtex[0..2] * norm * mbs
* o_vmv[0..count] = o_vpos + vmv[0..4] * 0.5 // Apply motion vector
* o_frc = fract(vpos) * mbs
* o_vmv[0..count] = o_vpos + vmv[0..4] * norm * 0.5 // Apply motion vector
* o_line.x = 1
* o_line.y = vpos.y * 8
*/
ureg_MUL(shader, ureg_writemask(temp, TGSI_WRITEMASK_XY), vpos, mbs);
ureg_MUL(shader, ureg_writemask(o_vpos, TGSI_WRITEMASK_XY), ureg_src(temp), norm);
ureg_MUL(shader, ureg_writemask(tmp, TGSI_WRITEMASK_XY), vpos, mbs);
ureg_MUL(shader, ureg_writemask(o_vpos, TGSI_WRITEMASK_XY), ureg_src(tmp), norm);
ureg_MOV(shader, ureg_writemask(o_vpos, TGSI_WRITEMASK_ZW), vpos);
for (i = 0; i < 3; ++i) {
ureg_MUL(shader, ureg_writemask(temp, TGSI_WRITEMASK_XY), vtex[i], mbs);
ureg_MUL(shader, ureg_writemask(o_vtex[i], TGSI_WRITEMASK_XY), ureg_src(temp), norm);
ureg_MUL(shader, ureg_writemask(tmp, TGSI_WRITEMASK_XY), vtex[i], mbs);
ureg_MUL(shader, ureg_writemask(o_vtex[i], TGSI_WRITEMASK_XY), ureg_src(tmp), norm);
}
for (i = 0; i < count; ++i) {
ureg_MUL(shader, ureg_writemask(temp, TGSI_WRITEMASK_XY), vmv[i],
ureg_MUL(shader, ureg_writemask(tmp, TGSI_WRITEMASK_XY), vmv[i],
ureg_scalar(ureg_imm1f(shader, 0.5f), TGSI_SWIZZLE_X));
ureg_MAD(shader, ureg_writemask(o_vmv[i], TGSI_WRITEMASK_XY), ureg_src(temp), norm, ureg_src(o_vpos));
ureg_MAD(shader, ureg_writemask(o_vmv[i], TGSI_WRITEMASK_XY), ureg_src(tmp), norm, ureg_src(o_vpos));
}
if (mv_per_frame == 2) {
ureg_MOV(shader, ureg_writemask(o_line, TGSI_WRITEMASK_X), ureg_imm1f(shader, 1.0f));
ureg_MUL(shader, ureg_writemask(o_line, TGSI_WRITEMASK_Y), vpos, ureg_imm1f(shader, MACROBLOCK_HEIGHT / 2));
}
ureg_release_temporary(shader, temp);
ureg_release_temporary(shader, tmp);
ureg_END(shader);
return ureg_create_shader_and_destroy(shader, r->pipe);
@ -155,7 +159,7 @@ create_intra_frag_shader(struct vl_mpeg12_mc_renderer *r)
struct ureg_program *shader;
struct ureg_src tc[3];
struct ureg_src sampler[3];
struct ureg_dst texel, temp;
struct ureg_dst texel, tmp;
struct ureg_dst fragment;
unsigned i;
@ -168,7 +172,7 @@ create_intra_frag_shader(struct vl_mpeg12_mc_renderer *r)
sampler[i] = ureg_DECL_sampler(shader, i);
}
texel = ureg_DECL_temporary(shader);
temp = ureg_DECL_temporary(shader);
tmp = ureg_DECL_temporary(shader);
fragment = ureg_DECL_output(shader, TGSI_SEMANTIC_COLOR, 0);
/*
@ -179,13 +183,13 @@ create_intra_frag_shader(struct vl_mpeg12_mc_renderer *r)
*/
for (i = 0; i < 3; ++i) {
/* Nouveau can't writemask tex dst regs (yet?), do in two steps */
ureg_TEX(shader, temp, TGSI_TEXTURE_2D, tc[i], sampler[i]);
ureg_MOV(shader, ureg_writemask(texel, TGSI_WRITEMASK_X << i), ureg_scalar(ureg_src(temp), TGSI_SWIZZLE_X));
ureg_TEX(shader, tmp, TGSI_TEXTURE_2D, tc[i], sampler[i]);
ureg_MOV(shader, ureg_writemask(texel, TGSI_WRITEMASK_X << i), ureg_scalar(ureg_src(tmp), TGSI_SWIZZLE_X));
}
ureg_MUL(shader, fragment, ureg_src(texel), ureg_scalar(ureg_imm1f(shader, SCALE_FACTOR_16_TO_9), TGSI_SWIZZLE_X));
ureg_release_temporary(shader, texel);
ureg_release_temporary(shader, temp);
ureg_release_temporary(shader, tmp);
ureg_END(shader);
return ureg_create_shader_and_destroy(shader, r->pipe);
@ -264,10 +268,10 @@ create_field_pred_frag_shader(struct vl_mpeg12_mc_renderer *r)
* texel.r = tex(tc[0], sampler[0])
* texel.g = tex(tc[1], sampler[1])
* texel.b = tex(tc[2], sampler[2])
* if(fract & 1)
* ref = tex(tc[3], sampler[3])
* else
* if(line % 2)
* ref = tex(tc[4], sampler[3])
* else
* ref = tex(tc[3], sampler[3])
* fragment = texel * scale + ref
*/
for (i = 0; i < 3; ++i) {
@ -376,7 +380,10 @@ create_field_bi_pred_frag_shader(struct vl_mpeg12_mc_renderer *r)
* texel.r = tex(tc[0], sampler[0])
* texel.g = tex(tc[1], sampler[1])
* texel.b = tex(tc[2], sampler[2])
* ref[0..1 = tex(tc[3..4], sampler[3..4])
* if(line % 2)
* ref[0..1] = tex(tc[4|6], sampler[3..4])
* else
* ref[0..1] = tex(tc[3|5], sampler[3..4])
* ref[0] = lerp(ref[0], ref[1], 0.5)
* fragment = texel * scale + ref[0]
*/