[Mesa-dev] [PATCH 05/10] mesa: Add renderbuffer accessors for A, I, L, FLOAT32.
Eric Anholt
eric at anholt.net
Mon Apr 18 13:37:57 PDT 2011
Of these, intel will be using I and L initially, and A once we rewrite
fragment shaders and the CC for rendering to it as R.
---
src/mesa/main/renderbuffer.c | 218 ++++++++++++++++++++++++++++++++++++++++++
1 files changed, 218 insertions(+), 0 deletions(-)
diff --git a/src/mesa/main/renderbuffer.c b/src/mesa/main/renderbuffer.c
index 7826e44..2fa9e27 100644
--- a/src/mesa/main/renderbuffer.c
+++ b/src/mesa/main/renderbuffer.c
@@ -1114,6 +1114,194 @@ get_values_rg1616(struct gl_context *ctx, struct gl_renderbuffer *rb,
}
/**********************************************************************
+ * Functions for MESA_FORMAT_INTENSITY_FLOAT32.
+ */
+static void
+get_row_i_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] = dst[i * 4 + RCOMP];
+ dst[i * 4 + BCOMP] = dst[i * 4 + RCOMP];
+ dst[i * 4 + ACOMP] = dst[i * 4 + RCOMP];
+ }
+}
+
+static void
+get_values_i_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] = dst[i * 4 + RCOMP];
+ dst[i * 4 + BCOMP] = dst[i * 4 + RCOMP];
+ dst[i * 4 + ACOMP] = dst[i * 4 + RCOMP];
+ }
+}
+
+/**********************************************************************
+ * Functions for MESA_FORMAT_LUMINANCE_FLOAT32.
+ */
+static void
+get_row_l_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] = dst[i * 4 + RCOMP];
+ dst[i * 4 + BCOMP] = dst[i * 4 + RCOMP];
+ dst[i * 4 + ACOMP] = 1.0;
+ }
+}
+
+static void
+get_values_l_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] = dst[i * 4 + RCOMP];
+ dst[i * 4 + BCOMP] = dst[i * 4 + RCOMP];
+ dst[i * 4 + ACOMP] = 1.0;
+ }
+}
+
+/**********************************************************************
+ * Functions for MESA_FORMAT_ALPHA_FLOAT32.
+ */
+static void
+get_row_a_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] = 0.0;
+ dst[i * 4 + GCOMP] = 0.0;
+ dst[i * 4 + BCOMP] = 0.0;
+ dst[i * 4 + ACOMP] = src[i];
+ }
+}
+
+static void
+get_values_a_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] = 0.0;
+ dst[i * 4 + GCOMP] = 0.0;
+ dst[i * 4 + BCOMP] = 0.0;
+ dst[i * 4 + ACOMP] = src[0];
+ }
+}
+
+static void
+put_row_a_float32(struct gl_context *ctx, struct gl_renderbuffer *rb,
+ GLuint count, GLint x, GLint y,
+ const void *values, const GLubyte *mask)
+{
+ float *dst = rb->GetPointer(ctx, rb, x, y);
+ const float *src = values;
+ unsigned int i;
+
+ if (mask) {
+ for (i = 0; i < count; i++) {
+ if (mask[i]) {
+ dst[i] = src[i * 4 + ACOMP];
+ }
+ }
+ }
+ else {
+ for (i = 0; i < count; i++) {
+ dst[i] = src[i * 4 + ACOMP];
+ }
+ }
+}
+
+static void
+put_mono_row_a_float32(struct gl_context *ctx, struct gl_renderbuffer *rb,
+ GLuint count, GLint x, GLint y,
+ const void *value, const GLubyte *mask)
+{
+ float *dst = rb->GetPointer(ctx, rb, x, y);
+ const float *src = value;
+ unsigned int i;
+
+ if (mask) {
+ for (i = 0; i < count; i++) {
+ if (mask[i]) {
+ dst[i] = src[ACOMP];
+ }
+ }
+ }
+ else {
+ for (i = 0; i < count; i++) {
+ dst[i] = src[ACOMP];
+ }
+ }
+}
+
+static void
+put_values_a_float32(struct gl_context *ctx, struct gl_renderbuffer *rb,
+ GLuint count, const GLint x[], const GLint y[],
+ const void *values, const GLubyte *mask)
+{
+ const float *src = values;
+ unsigned int i;
+
+ for (i = 0; i < count; i++) {
+ if (!mask || mask[i]) {
+ float *dst = rb->GetPointer(ctx, rb, x[i], y[i]);
+
+ *dst = src[i * 4 + ACOMP];
+ }
+ }
+}
+
+static void
+put_mono_values_a_float32(struct gl_context *ctx,
+ struct gl_renderbuffer *rb,
+ GLuint count, const GLint x[], const GLint y[],
+ const void *value, const GLubyte *mask)
+{
+ const float *src = value;
+ unsigned int i;
+
+ for (i = 0; i < count; i++) {
+ if (!mask || mask[i]) {
+ float *dst = rb->GetPointer(ctx, rb, x[i], y[i]);
+ *dst = src[ACOMP];
+ }
+ }
+}
+
+/**********************************************************************
* Functions for MESA_FORMAT_R_FLOAT32.
*/
static void
@@ -1342,6 +1530,36 @@ _mesa_set_renderbuffer_accessors(struct gl_renderbuffer *rb)
rb->PutMonoValues = put_mono_values_generic;
break;
+ case MESA_FORMAT_INTENSITY_FLOAT32:
+ rb->GetRow = get_row_i_float32;
+ rb->GetValues = get_values_i_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_LUMINANCE_FLOAT32:
+ rb->GetRow = get_row_l_float32;
+ rb->GetValues = get_values_l_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_ALPHA_FLOAT32:
+ rb->GetRow = get_row_a_float32;
+ rb->GetValues = get_values_a_float32;
+ rb->PutRow = put_row_a_float32;
+ rb->PutRowRGB = NULL;
+ rb->PutMonoRow = put_mono_row_a_float32;
+ rb->PutValues = put_values_a_float32;
+ rb->PutMonoValues = put_mono_values_a_float32;
+ break;
+
case MESA_FORMAT_RG_FLOAT32:
rb->GetRow = get_row_rg_float32;
rb->GetValues = get_values_rg_float32;
--
1.7.4.4
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