From 3bbad7f1084c3d6259dfa23fd60f654c949f7408 Mon Sep 17 00:00:00 2001 From: Francisco Jerez Date: Thu, 9 Sep 2010 14:14:48 +0200 Subject: dri/nv10-nv20: Add support for NV_texture_env_combine4. --- src/mesa/drivers/dri/nouveau/nouveau_context.c | 1 + src/mesa/drivers/dri/nouveau/nv10_state_frag.c | 31 +++++++++++++++----------- 2 files changed, 19 insertions(+), 13 deletions(-) (limited to 'src/mesa/drivers/dri') diff --git a/src/mesa/drivers/dri/nouveau/nouveau_context.c b/src/mesa/drivers/dri/nouveau/nouveau_context.c index b1d415257d..287f77d96c 100644 --- a/src/mesa/drivers/dri/nouveau/nouveau_context.c +++ b/src/mesa/drivers/dri/nouveau/nouveau_context.c @@ -60,6 +60,7 @@ static const struct dri_extension nouveau_extensions[] = { { "GL_EXT_stencil_wrap", NULL }, { "GL_EXT_texture_lod_bias", NULL }, { "GL_NV_blend_square", NULL }, + { "GL_NV_texture_env_combine4", NULL }, { "GL_SGIS_generate_mipmap", NULL }, { NULL, NULL } }; diff --git a/src/mesa/drivers/dri/nouveau/nv10_state_frag.c b/src/mesa/drivers/dri/nouveau/nv10_state_frag.c index 76b95fdd51..ab713f9dbf 100644 --- a/src/mesa/drivers/dri/nouveau/nv10_state_frag.c +++ b/src/mesa/drivers/dri/nouveau/nv10_state_frag.c @@ -63,6 +63,7 @@ struct combiner_state { GLcontext *ctx; int unit; + GLboolean premodulate; /* GL state */ GLenum mode; @@ -82,6 +83,7 @@ struct combiner_state { ctx->Texture.Unit[i]._CurrentCombine; \ (rc)->ctx = ctx; \ (rc)->unit = i; \ + (rc)->premodulate = c->_NumArgs##chan == 4; \ (rc)->mode = c->Mode##chan; \ (rc)->source = c->Source##chan; \ (rc)->operand = c->Operand##chan; \ @@ -95,6 +97,9 @@ static uint32_t get_input_source(struct combiner_state *rc, int source) { switch (source) { + case GL_ZERO: + return RC_IN_SOURCE(ZERO); + case GL_TEXTURE: return RC_IN_SOURCE(TEXTURE0) + rc->unit; @@ -228,21 +233,21 @@ setup_combiner(struct combiner_state *rc) break; case GL_ADD: - INPUT_ARG(rc, A, 0, 0); - INPUT_ONE(rc, B, 0); - INPUT_ARG(rc, C, 1, 0); - INPUT_ONE(rc, D, 0); - - rc->out = RC_OUT_SUM; - break; - case GL_ADD_SIGNED: - INPUT_ARG(rc, A, 0, 0); - INPUT_ONE(rc, B, 0); - INPUT_ARG(rc, C, 1, 0); - INPUT_ONE(rc, D, 0); + if (rc->premodulate) { + INPUT_ARG(rc, A, 0, 0); + INPUT_ARG(rc, B, 1, 0); + INPUT_ARG(rc, C, 2, 0); + INPUT_ARG(rc, D, 3, 0); + } else { + INPUT_ARG(rc, A, 0, 0); + INPUT_ONE(rc, B, 0); + INPUT_ARG(rc, C, 1, 0); + INPUT_ONE(rc, D, 0); + } - rc->out = RC_OUT_SUM | RC_OUT_BIAS; + rc->out = RC_OUT_SUM | + (rc->mode == GL_ADD_SIGNED ? RC_OUT_BIAS : 0); break; case GL_INTERPOLATE: -- cgit v1.2.3