shader: add TXP special handling on GLES host for 1D textures

TXP implements perspective correction, and uses a 4D vector as input.
Apply the according perspective correction in the 1D case and use only
the relevant components.

Closes: #34
Signed-off-by: Dave Airlie <airlied@redhat.com>
macos/master
Gert Wollny 6 years ago committed by Dave Airlie
parent 7f5e49d54a
commit efba840386
  1. 5
      src/vrend_shader.c

@ -2304,7 +2304,10 @@ static int translate_tex(struct dump_ctx *ctx,
* so we use a 2D texture with a parameter set to 0.5 * so we use a 2D texture with a parameter set to 0.5
*/ */
if (ctx->cfg->use_gles && inst->Texture.Texture == TGSI_TEXTURE_1D) { if (ctx->cfg->use_gles && inst->Texture.Texture == TGSI_TEXTURE_1D) {
snprintf(buf, 255, "%s = %s(%s(texture2D(%s, vec2(%s%s%s%s, 0.5))%s));\n", dsts[0], get_string(dinfo->dstconv), get_string(dtypeprefix), srcs[sampler_index], srcs[0], get_wm_string(twm), offbuf, bias, dinfo->dst_override_no_wm[0] ? "" : writemask); if (inst->Instruction.Opcode == TGSI_OPCODE_TXP)
snprintf(buf, 255, "%s = %s(%s(texture2D(%s, vec2(%s.x / %s.w, 0.5))%s));\n", dsts[0], get_string(dinfo->dstconv), get_string(dtypeprefix), srcs[sampler_index], srcs[0], srcs[0], dinfo->dst_override_no_wm[0] ? "" : writemask);
else
snprintf(buf, 255, "%s = %s(%s(texture2D(%s, vec2(%s%s%s%s, 0.5))%s));\n", dsts[0], get_string(dinfo->dstconv), get_string(dtypeprefix), srcs[sampler_index], srcs[0], get_wm_string(twm), offbuf, bias, dinfo->dst_override_no_wm[0] ? "" : writemask);
} else { } else {
snprintf(buf, 255, "%s = %s(%s(texture%s(%s, %s%s%s%s)%s));\n", dsts[0], get_string(dinfo->dstconv), get_string(dtypeprefix), tex_ext, srcs[sampler_index], srcs[0], get_wm_string(twm), offbuf, bias, dinfo->dst_override_no_wm[0] ? "" : writemask); snprintf(buf, 255, "%s = %s(%s(texture%s(%s, %s%s%s%s)%s));\n", dsts[0], get_string(dinfo->dstconv), get_string(dtypeprefix), tex_ext, srcs[sampler_index], srcs[0], get_wm_string(twm), offbuf, bias, dinfo->dst_override_no_wm[0] ? "" : writemask);
} }

Loading…
Cancel
Save