diff options
Diffstat (limited to 'src/mesa/drivers/dri/r300/r300_emit.c')
| -rw-r--r-- | src/mesa/drivers/dri/r300/r300_emit.c | 33 |
1 files changed, 18 insertions, 15 deletions
diff --git a/src/mesa/drivers/dri/r300/r300_emit.c b/src/mesa/drivers/dri/r300/r300_emit.c index cf31596d9b..4017224b10 100644 --- a/src/mesa/drivers/dri/r300/r300_emit.c +++ b/src/mesa/drivers/dri/r300/r300_emit.c @@ -81,49 +81,52 @@ GLuint r300VAPInputCntl1(GLcontext * ctx, GLuint InputsRead) return vic_1; } -GLuint r300VAPOutputCntl0(GLcontext * ctx, GLuint OutputsWritten) +GLuint r300VAPOutputCntl0(GLcontext * ctx, GLuint vp_writes, GLuint fp_reads) { GLuint ret = 0; - if (OutputsWritten & (1 << VERT_RESULT_HPOS)) + if (vp_writes & (1 << VERT_RESULT_HPOS)) ret |= R300_VAP_OUTPUT_VTX_FMT_0__POS_PRESENT; - if (OutputsWritten & (1 << VERT_RESULT_COL0)) + if (vp_writes & (1 << VERT_RESULT_COL0) && fp_reads & FRAG_BIT_COL0) ret |= R300_VAP_OUTPUT_VTX_FMT_0__COLOR_0_PRESENT; - if (OutputsWritten & (1 << VERT_RESULT_COL1)) + if (vp_writes & (1 << VERT_RESULT_COL1) && fp_reads & FRAG_BIT_COL1) ret |= R300_VAP_OUTPUT_VTX_FMT_0__COLOR_1_PRESENT; - if (OutputsWritten & (1 << VERT_RESULT_BFC0) - || OutputsWritten & (1 << VERT_RESULT_BFC1)) - ret |= - R300_VAP_OUTPUT_VTX_FMT_0__COLOR_1_PRESENT | - R300_VAP_OUTPUT_VTX_FMT_0__COLOR_2_PRESENT | - R300_VAP_OUTPUT_VTX_FMT_0__COLOR_3_PRESENT; + /* Two sided lighting works only if all 4 colors are written */ + if (vp_writes & (1 << VERT_RESULT_BFC0) || vp_writes & (1 << VERT_RESULT_BFC1)) + ret |= R300_VAP_OUTPUT_VTX_FMT_0__COLOR_0_PRESENT | R300_VAP_OUTPUT_VTX_FMT_0__COLOR_1_PRESENT | + R300_VAP_OUTPUT_VTX_FMT_0__COLOR_2_PRESENT | R300_VAP_OUTPUT_VTX_FMT_0__COLOR_3_PRESENT; - if (OutputsWritten & (1 << VERT_RESULT_PSIZ)) + if (vp_writes & (1 << VERT_RESULT_PSIZ)) ret |= R300_VAP_OUTPUT_VTX_FMT_0__PT_SIZE_PRESENT; return ret; } -GLuint r300VAPOutputCntl1(GLcontext * ctx, GLuint OutputsWritten) +GLuint r300VAPOutputCntl1(GLcontext * ctx, GLuint vp_writes, GLuint fp_reads) { GLuint i, ret = 0, first_free_texcoord = 0; for (i = 0; i < ctx->Const.MaxTextureUnits; i++) { - if (OutputsWritten & (1 << (VERT_RESULT_TEX0 + i))) { + if (vp_writes & (1 << (VERT_RESULT_TEX0 + i)) && fp_reads & FRAG_BIT_TEX(i)) { ret |= (4 << (3 * i)); ++first_free_texcoord; } } - if (OutputsWritten & (1 << VERT_RESULT_FOGC)) { + if (fp_reads & FRAG_BIT_WPOS) { + ret |= (4 << (3 * first_free_texcoord)); + ++first_free_texcoord; + } + + if (vp_writes & (1 << VERT_RESULT_FOGC) && fp_reads & FRAG_BIT_FOGC) { if (first_free_texcoord > 8) { fprintf(stderr, "\tout of free texcoords to write fog coord\n"); _mesa_exit(-1); } - ret |= 1 << (3 * first_free_texcoord); + ret |= 4 << (3 * first_free_texcoord); } return ret; |