diff options
author | Eric Anholt <[email protected]> | 2011-04-18 09:17:00 -0700 |
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committer | Eric Anholt <[email protected]> | 2011-04-20 10:35:42 -0700 |
commit | bad08969b50bc5b2d014043d55b30323d408e080 (patch) | |
tree | 39a1058dfbd0ef874db5431e1ce357cb05f01d8f /src/mesa/main | |
parent | f7c26109c2cc61150d678529c8b0b5e769e9607e (diff) |
mesa: Add renderbuffer accessors for MESA_FORMAT_R_FLOAT32, RG_FLOAT32.
Reviewed-by: Brian Paul <[email protected]>
Diffstat (limited to 'src/mesa/main')
-rw-r--r-- | src/mesa/main/renderbuffer.c | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/src/mesa/main/renderbuffer.c b/src/mesa/main/renderbuffer.c index ab55c3688ea..fce70d4219a 100644 --- a/src/mesa/main/renderbuffer.c +++ b/src/mesa/main/renderbuffer.c @@ -1109,6 +1109,78 @@ get_values_rg1616(struct gl_context *ctx, struct gl_renderbuffer *rb, } } +/********************************************************************** + * Functions for MESA_FORMAT_R_FLOAT32. + */ +static void +get_row_r_float32(struct gl_context *ctx, struct gl_renderbuffer *rb, + GLuint count, GLint x, GLint y, void *values) +{ + const GLfloat *src = rb->GetPointer(ctx, rb, x, y); + GLfloat *dst = values; + GLuint i; + + for (i = 0; i < count; i++) { + dst[i * 4 + RCOMP] = src[i]; + dst[i * 4 + GCOMP] = 0.0; + dst[i * 4 + BCOMP] = 0.0; + dst[i * 4 + ACOMP] = 1.0; + } +} + +static void +get_values_r_float32(struct gl_context *ctx, struct gl_renderbuffer *rb, + GLuint count, const GLint x[], const GLint y[], + void *values) +{ + GLfloat *dst = values; + GLuint i; + + for (i = 0; i < count; i++) { + const GLfloat *src = rb->GetPointer(ctx, rb, x[i], y[i]); + dst[i * 4 + RCOMP] = src[0]; + dst[i * 4 + GCOMP] = 0.0; + dst[i * 4 + BCOMP] = 0.0; + dst[i * 4 + ACOMP] = 1.0; + } +} + +/********************************************************************** + * Functions for MESA_FORMAT_RG_FLOAT32. + */ +static void +get_row_rg_float32(struct gl_context *ctx, struct gl_renderbuffer *rb, + GLuint count, GLint x, GLint y, void *values) +{ + const GLfloat *src = rb->GetPointer(ctx, rb, x, y); + GLfloat *dst = values; + GLuint i; + + for (i = 0; i < count; i++) { + dst[i * 4 + RCOMP] = src[i * 2 + 0]; + dst[i * 4 + GCOMP] = src[i * 2 + 1]; + dst[i * 4 + BCOMP] = 0.0; + dst[i * 4 + ACOMP] = 1.0; + } +} + +static void +get_values_rg_float32(struct gl_context *ctx, struct gl_renderbuffer *rb, + GLuint count, const GLint x[], const GLint y[], + void *values) +{ + GLfloat *dst = values; + GLuint i; + + for (i = 0; i < count; i++) { + const GLfloat *src = rb->GetPointer(ctx, rb, x[i], y[i]); + dst[i * 4 + RCOMP] = src[0]; + dst[i * 4 + GCOMP] = src[1]; + dst[i * 4 + BCOMP] = 0.0; + dst[i * 4 + ACOMP] = 1.0; + } +} + /** * This is the default software fallback for gl_renderbuffer's span * access functions. @@ -1265,6 +1337,26 @@ _mesa_set_renderbuffer_accessors(struct gl_renderbuffer *rb) rb->PutMonoValues = put_mono_values_generic; break; + case MESA_FORMAT_RG_FLOAT32: + rb->GetRow = get_row_rg_float32; + rb->GetValues = get_values_rg_float32; + rb->PutRow = put_row_generic; + rb->PutRowRGB = NULL; + rb->PutMonoRow = put_mono_row_generic; + rb->PutValues = put_values_generic; + rb->PutMonoValues = put_mono_values_generic; + break; + + case MESA_FORMAT_R_FLOAT32: + rb->GetRow = get_row_r_float32; + rb->GetValues = get_values_r_float32; + rb->PutRow = put_row_generic; + rb->PutRowRGB = NULL; + rb->PutMonoRow = put_mono_row_generic; + rb->PutValues = put_values_generic; + rb->PutMonoValues = put_mono_values_generic; + break; + default: break; } |