diff options
| author | Roland Scheidegger <rscheidegger@gmx.ch> | 2005-09-09 15:43:11 +0000 |
|---|---|---|
| committer | Roland Scheidegger <rscheidegger@gmx.ch> | 2005-09-09 15:43:11 +0000 |
| commit | b346213960057a25edf404e3323fc9da4dc54c0e (patch) | |
| tree | 1991fab2c5608d8bce1a44964d838b3d999f0837 /src/mesa/swrast/s_atifragshader.c | |
| parent | 95db1f01273bcc4ab4f5405eaa0bc87b63c1f297 (diff) | |
fix some bugs with handling of GL_DOT4_ATI, GL_DOT3_ATI and GL_DOT2_ADD_ATI ATI_fs instructions.
Diffstat (limited to 'src/mesa/swrast/s_atifragshader.c')
| -rw-r--r-- | src/mesa/swrast/s_atifragshader.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/src/mesa/swrast/s_atifragshader.c b/src/mesa/swrast/s_atifragshader.c index c3d9af8c17..4b53ff6587 100644 --- a/src/mesa/swrast/s_atifragshader.c +++ b/src/mesa/swrast/s_atifragshader.c @@ -98,7 +98,7 @@ apply_src_rep(GLint optype, GLuint rep, GLfloat * val) return; start = optype ? 3 : 0; - end = optype ? 4 : 3; + end = 4; for (i = start; i < end; i++) { switch (rep) { @@ -128,7 +128,7 @@ apply_src_mod(GLint optype, GLuint mod, GLfloat * val) return; start = optype ? 3 : 0; - end = optype ? 4 : 3; + end = 4; for (i = start; i < end; i++) { if (mod & GL_COMP_BIT_ATI) @@ -474,6 +474,7 @@ execute_shader(GLcontext * ctx, GLfloat result; /* DOT 2 always uses the source from the color op */ + /* could save recalculation of dot products for alpha inst */ result = src[0][0][0] * src[0][1][0] + src[0][0][1] * src[0][1][1] + src[0][2][2]; if (!optype) { @@ -483,7 +484,6 @@ execute_shader(GLcontext * ctx, } else dst[optype][3] = result; - } break; case GL_DOT3_ATI: @@ -509,7 +509,7 @@ execute_shader(GLcontext * ctx, GLfloat result; /* DOT 4 always uses the source from the color op */ - result = src[optype][0][0] * src[0][1][0] + + result = src[0][0][0] * src[0][1][0] + src[0][0][1] * src[0][1][1] + src[0][0][2] * src[0][1][2] + src[0][0][3] * src[0][1][3]; @@ -533,9 +533,13 @@ execute_shader(GLcontext * ctx, dstreg = inst->DstReg[optype].Index; dstp = machine->Registers[dstreg - GL_REG_0_ATI]; - write_dst_addr(optype, inst->DstReg[optype].dstMod, + if ((optype == 0) || ((inst->Opcode[1] != GL_DOT2_ADD_ATI) && + (inst->Opcode[1] != GL_DOT3_ATI) && (inst->Opcode[1] != GL_DOT4_ATI))) + write_dst_addr(optype, inst->DstReg[optype].dstMod, inst->DstReg[optype].dstMask, dst[optype], dstp); + else + write_dst_addr(1, inst->DstReg[0].dstMod, 0, dst[1], dstp); } } } |