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path: root/src/mesa/state_tracker/st_cb_accum.c
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Diffstat (limited to 'src/mesa/state_tracker/st_cb_accum.c')
-rw-r--r--src/mesa/state_tracker/st_cb_accum.c139
1 files changed, 104 insertions, 35 deletions
diff --git a/src/mesa/state_tracker/st_cb_accum.c b/src/mesa/state_tracker/st_cb_accum.c
index a623d0bcc0..4f9a22161c 100644
--- a/src/mesa/state_tracker/st_cb_accum.c
+++ b/src/mesa/state_tracker/st_cb_accum.c
@@ -56,54 +56,123 @@
*/
+/**
+ * Wrapper for pipe_get_tile_rgba(). Do format/cpp override to make the
+ * tile util function think the surface is 16bit/channel, even if it's not.
+ * See also: st_renderbuffer_alloc_storage()
+ */
+static void
+acc_get_tile_rgba(struct pipe_context *pipe, struct pipe_surface *acc_ps,
+ uint x, uint y, uint w, uint h, float *p)
+{
+ const enum pipe_format f = acc_ps->format;
+ const int cpp = acc_ps->cpp;
+
+ acc_ps->format = DEFAULT_ACCUM_PIPE_FORMAT;
+ acc_ps->cpp = 8;
+
+ pipe_get_tile_rgba(pipe, acc_ps, x, y, w, h, p);
+
+ acc_ps->format = f;
+ acc_ps->cpp = cpp;
+}
+
+
+/**
+ * Wrapper for pipe_put_tile_rgba(). Do format/cpp override to make the
+ * tile util function think the surface is 16bit/channel, even if it's not.
+ * See also: st_renderbuffer_alloc_storage()
+ */
+static void
+acc_put_tile_rgba(struct pipe_context *pipe, struct pipe_surface *acc_ps,
+ uint x, uint y, uint w, uint h, const float *p)
+{
+ enum pipe_format f = acc_ps->format;
+ const int cpp = acc_ps->cpp;
+
+ acc_ps->format = DEFAULT_ACCUM_PIPE_FORMAT;
+ acc_ps->cpp = 8;
+
+ pipe_put_tile_rgba(pipe, acc_ps, x, y, w, h, p);
+
+ acc_ps->format = f;
+ acc_ps->cpp = cpp;
+}
+
+
+
void
st_clear_accum_buffer(GLcontext *ctx, struct gl_renderbuffer *rb)
{
- struct pipe_context *pipe = ctx->st->pipe;
struct st_renderbuffer *acc_strb = st_renderbuffer(rb);
struct pipe_surface *acc_ps = acc_strb->surface;
const GLint xpos = ctx->DrawBuffer->_Xmin;
const GLint ypos = ctx->DrawBuffer->_Ymin;
const GLint width = ctx->DrawBuffer->_Xmax - xpos;
const GLint height = ctx->DrawBuffer->_Ymax - ypos;
- const GLfloat r = ctx->Accum.ClearColor[0];
- const GLfloat g = ctx->Accum.ClearColor[1];
- const GLfloat b = ctx->Accum.ClearColor[2];
- const GLfloat a = ctx->Accum.ClearColor[3];
- GLfloat *accBuf = (GLfloat *) malloc(width * height * 4 * sizeof(GLfloat));
- int i;
-
- for (i = 0; i < width * height; i++) {
- accBuf[i*4+0] = r;
- accBuf[i*4+1] = g;
- accBuf[i*4+2] = b;
- accBuf[i*4+3] = a;
+ GLvoid *map;
+
+ map = pipe_surface_map(acc_ps);
+
+ /* note acc_strb->format might not equal acc_ps->format */
+ switch (acc_strb->format) {
+ case PIPE_FORMAT_R16G16B16A16_SNORM:
+ {
+ GLshort r = FLOAT_TO_SHORT(ctx->Accum.ClearColor[0]);
+ GLshort g = FLOAT_TO_SHORT(ctx->Accum.ClearColor[1]);
+ GLshort b = FLOAT_TO_SHORT(ctx->Accum.ClearColor[2]);
+ GLshort a = FLOAT_TO_SHORT(ctx->Accum.ClearColor[3]);
+ int i, j;
+ for (i = 0; i < height; i++) {
+ GLshort *dst = ((GLshort *) map
+ + ((ypos + i) * acc_ps->pitch + xpos) * 4);
+ for (j = 0; j < width; j++) {
+ dst[0] = r;
+ dst[1] = g;
+ dst[2] = b;
+ dst[3] = a;
+ dst += 4;
+ }
+ }
+ }
+ break;
+ default:
+ _mesa_problem(ctx, "unexpected format in st_clear_accum_buffer()");
}
- pipe_put_tile_rgba(pipe, acc_ps, xpos, ypos, width, height, accBuf);
+ pipe_surface_unmap(acc_ps);
}
/** For ADD/MULT */
static void
-accum_mad(struct pipe_context *pipe, GLfloat scale, GLfloat bias,
+accum_mad(GLcontext *ctx, GLfloat scale, GLfloat bias,
GLint xpos, GLint ypos, GLint width, GLint height,
- struct pipe_surface *acc_ps)
+ struct st_renderbuffer *acc_strb)
{
- GLfloat *accBuf;
- GLint i;
-
- accBuf = (GLfloat *) malloc(width * height * 4 * sizeof(GLfloat));
-
- pipe_get_tile_rgba(pipe, acc_ps, xpos, ypos, width, height, accBuf);
-
- for (i = 0; i < 4 * width * height; i++) {
- accBuf[i] = accBuf[i] * scale + bias;
+ struct pipe_surface *acc_ps = acc_strb->surface;
+ GLvoid *map;
+
+ map = pipe_surface_map(acc_ps);
+
+ /* note acc_strb->format might not equal acc_ps->format */
+ switch (acc_strb->format) {
+ case PIPE_FORMAT_R16G16B16A16_SNORM:
+ {
+ int i, j;
+ for (i = 0; i < height; i++) {
+ GLshort *acc = ((GLshort *) map
+ + ((ypos + i) * acc_ps->pitch + xpos) * 4);
+ for (j = 0; j < width * 4; j++) {
+ float val = SHORT_TO_FLOAT(acc[j]) * scale + bias;
+ acc[j] = FLOAT_TO_SHORT(val);
+ }
+ }
+ }
+ break;
+ default:
+ _mesa_problem(NULL, "unexpected format in st_clear_accum_buffer()");
}
-
- pipe_put_tile_rgba(pipe, acc_ps, xpos, ypos, width, height, accBuf);
-
- free(accBuf);
}
@@ -120,13 +189,13 @@ accum_accum(struct pipe_context *pipe, GLfloat value,
accBuf = (GLfloat *) malloc(width * height * 4 * sizeof(GLfloat));
pipe_get_tile_rgba(pipe, color_ps, xpos, ypos, width, height, colorBuf);
- pipe_get_tile_rgba(pipe, acc_ps, xpos, ypos, width, height, accBuf);
+ acc_get_tile_rgba(pipe, acc_ps, xpos, ypos, width, height, accBuf);
for (i = 0; i < 4 * width * height; i++) {
accBuf[i] = accBuf[i] + colorBuf[i] * value;
}
- pipe_put_tile_rgba(pipe, acc_ps, xpos, ypos, width, height, accBuf);
+ acc_put_tile_rgba(pipe, acc_ps, xpos, ypos, width, height, accBuf);
free(colorBuf);
free(accBuf);
@@ -150,7 +219,7 @@ accum_load(struct pipe_context *pipe, GLfloat value,
buf[i] = buf[i] * value;
}
- pipe_put_tile_rgba(pipe, acc_ps, xpos, ypos, width, height, buf);
+ acc_put_tile_rgba(pipe, acc_ps, xpos, ypos, width, height, buf);
free(buf);
}
@@ -169,7 +238,7 @@ accum_return(GLcontext *ctx, GLfloat value,
abuf = (GLfloat *) malloc(width * height * 4 * sizeof(GLfloat));
- pipe_get_tile_rgba(pipe, acc_ps, xpos, ypos, width, height, abuf);
+ acc_get_tile_rgba(pipe, acc_ps, xpos, ypos, width, height, abuf);
if (!colormask[0] || !colormask[1] || !colormask[2] || !colormask[3]) {
cbuf = (GLfloat *) malloc(width * height * 4 * sizeof(GLfloat));
@@ -219,12 +288,12 @@ st_Accum(GLcontext *ctx, GLenum op, GLfloat value)
switch (op) {
case GL_ADD:
if (value != 0.0F) {
- accum_mad(pipe, 1.0, value, xpos, ypos, width, height, acc_ps);
+ accum_mad(ctx, 1.0, value, xpos, ypos, width, height, acc_strb);
}
break;
case GL_MULT:
if (value != 1.0F) {
- accum_mad(pipe, value, 0.0, xpos, ypos, width, height, acc_ps);
+ accum_mad(ctx, value, 0.0, xpos, ypos, width, height, acc_strb);
}
break;
case GL_ACCUM:
generated by cgit v1.2.3 (git 2.39.1) at 2025-03-24 06:04:20 +0000