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authorEric Anholt <[email protected]>2011-04-18 09:17:00 -0700
committerEric Anholt <[email protected]>2011-04-20 10:35:42 -0700
commitbad08969b50bc5b2d014043d55b30323d408e080 (patch)
tree39a1058dfbd0ef874db5431e1ce357cb05f01d8f /src/mesa/main
parentf7c26109c2cc61150d678529c8b0b5e769e9607e (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.c92
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;
}