#include "pipe/p_defines.h"
#include "pipe/p_inlines.h"
#include "util/u_tile.h"
+
#include "st_context.h"
#include "st_cb_bitmap.h"
#include "st_cb_readpixels.h"
#include "st_cb_fbo.h"
#include "st_format.h"
#include "st_public.h"
-
+#include "st_texture.h"
+#include "st_inlines.h"
/**
* Special case for reading stencil buffer.
*/
void
st_read_stencil_pixels(GLcontext *ctx, GLint x, GLint y,
- GLsizei width, GLsizei height, GLenum type,
+ GLsizei width, GLsizei height,
+ GLenum format, GLenum type,
const struct gl_pixelstore_attrib *packing,
GLvoid *pixels)
{
GLint j;
if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) {
- y = ctx->DrawBuffer->Height - y - 1;
+ y = ctx->DrawBuffer->Height - y - height;
}
/* Create a read transfer from the renderbuffer's texture */
- pt = screen->get_tex_transfer(screen, strb->texture, 0, 0, 0,
- PIPE_TRANSFER_READ, x, y, width, height);
+
+ pt = st_cond_flush_get_tex_transfer(st_context(ctx), strb->texture,
+ 0, 0, 0,
+ PIPE_TRANSFER_READ, x, y,
+ width, height);
/* map the stencil buffer */
stmap = screen->transfer_map(screen, pt);
/* process image row by row */
for (j = 0; j < height; j++) {
GLvoid *dest;
- GLstencil values[MAX_WIDTH];
+ GLstencil sValues[MAX_WIDTH];
+ GLfloat zValues[MAX_WIDTH];
GLint srcY;
if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) {
srcY = j;
}
- /* get stencil values */
+ /* get stencil (and Z) values */
switch (pt->format) {
case PIPE_FORMAT_S8_UNORM:
{
const ubyte *src = stmap + srcY * pt->stride;
- memcpy(values, src, width);
+ memcpy(sValues, src, width);
}
break;
case PIPE_FORMAT_S8Z24_UNORM:
- {
+ if (format == GL_DEPTH_STENCIL) {
+ const uint *src = (uint *) (stmap + srcY * pt->stride);
+ const GLfloat scale = 1.0 / (0xffffff);
+ GLint k;
+ for (k = 0; k < width; k++) {
+ sValues[k] = src[k] >> 24;
+ zValues[k] = (src[k] & 0xffffff) * scale;
+ }
+ }
+ else {
const uint *src = (uint *) (stmap + srcY * pt->stride);
GLint k;
for (k = 0; k < width; k++) {
- values[k] = src[k] >> 24;
+ sValues[k] = src[k] >> 24;
}
}
break;
case PIPE_FORMAT_Z24S8_UNORM:
- {
+ if (format == GL_DEPTH_STENCIL) {
const uint *src = (uint *) (stmap + srcY * pt->stride);
+ const GLfloat scale = 1.0 / (0xffffff);
GLint k;
for (k = 0; k < width; k++) {
- values[k] = src[k] & 0xff;
+ sValues[k] = src[k] & 0xff;
+ zValues[k] = (src[k] >> 8) * scale;
+ }
+ }
+ else {
+ const uint *src = (uint *) (stmap + srcY * pt->stride);
+ GLint k;
+ for (k = 0; k < width; k++) {
+ sValues[k] = src[k] & 0xff;
}
}
break;
/* store */
dest = _mesa_image_address2d(packing, pixels, width, height,
- GL_STENCIL_INDEX, type, j, 0);
-
- _mesa_pack_stencil_span(ctx, width, type, dest, values, packing);
+ format, type, j, 0);
+ if (format == GL_DEPTH_STENCIL) {
+ _mesa_pack_depth_stencil_span(ctx, width, dest,
+ zValues, sValues, packing);
+ }
+ else {
+ _mesa_pack_stencil_span(ctx, width, type, dest, sValues, packing);
+ }
}
-
/* unmap the stencil buffer */
screen->transfer_unmap(screen, pt);
- screen->tex_transfer_release(screen, &pt);
+ screen->tex_transfer_destroy(pt);
}
GLint row, col, dy, dstStride;
if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) {
- y = strb->texture->height[0] - y - 1;
+ y = strb->texture->height[0] - y - height;
}
- trans = screen->get_tex_transfer(screen, strb->texture, 0, 0, 0,
- PIPE_TRANSFER_READ, x, y, width, height);
+ trans = st_cond_flush_get_tex_transfer(st_context(ctx), strb->texture,
+ 0, 0, 0,
+ PIPE_TRANSFER_READ, x, y,
+ width, height);
if (!trans) {
return GL_FALSE;
}
map = screen->transfer_map(screen, trans);
if (!map) {
- screen->tex_transfer_release(screen, &trans);
+ screen->tex_transfer_destroy(trans);
return GL_FALSE;
}
if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) {
- y = height - y - 1;
+ y = height - 1;
dy = -1;
}
else {
}
screen->transfer_unmap(screen, trans);
- screen->tex_transfer_release(screen, &trans);
+ screen->tex_transfer_destroy(trans);
}
return GL_TRUE;
if (!dest)
return;
- /* make sure rendering has completed */
st_flush(ctx->st, PIPE_FLUSH_RENDER_CACHE, NULL);
- if (format == GL_STENCIL_INDEX) {
- st_read_stencil_pixels(ctx, x, y, width, height, type, pack, dest);
+ if (format == GL_STENCIL_INDEX ||
+ format == GL_DEPTH_STENCIL) {
+ st_read_stencil_pixels(ctx, x, y, width, height,
+ format, type, pack, dest);
return;
}
else if (format == GL_DEPTH_COMPONENT) {
}
if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) {
- y = strb->Base.Height - 1 - y;
+ y = strb->Base.Height - y - height;
}
/* Create a read transfer from the renderbuffer's texture */
- trans = screen->get_tex_transfer(screen, strb->texture, 0, 0, 0,
- PIPE_TRANSFER_READ, x, y, width, height);
+ trans = st_cond_flush_get_tex_transfer(st_context(ctx), strb->texture,
+ 0, 0, 0,
+ PIPE_TRANSFER_READ, x, y,
+ width, height);
/* determine bottom-to-top vs. top-to-bottom order */
if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) {
- y = trans->height - 1 - y;
+ y = height - 1;
yStep = -1;
}
else {
}
}
}
+ else if (trans->format == PIPE_FORMAT_Z24S8_UNORM ||
+ trans->format == PIPE_FORMAT_Z24X8_UNORM) {
+ if (format == GL_DEPTH_COMPONENT) {
+ for (i = 0; i < height; i++) {
+ GLuint ztemp[MAX_WIDTH];
+ GLfloat zfloat[MAX_WIDTH];
+ const double scale = 1.0 / ((1 << 24) - 1);
+ pipe_get_tile_raw(trans, 0, y, width, 1, ztemp, 0);
+ y += yStep;
+ for (j = 0; j < width; j++) {
+ zfloat[j] = (float) (scale * ((ztemp[j] >> 8) & 0xffffff));
+ }
+ _mesa_pack_depth_span(ctx, width, dst, type,
+ zfloat, &clippedPacking);
+ dst += dstStride;
+ }
+ }
+ else {
+ /* untested, but simple: */
+ assert(format == GL_DEPTH_STENCIL_EXT);
+ for (i = 0; i < height; i++) {
+ pipe_get_tile_raw(trans, 0, y, width, 1, dst, 0);
+ y += yStep;
+ dst += dstStride;
+ }
+ }
+ }
else if (trans->format == PIPE_FORMAT_Z16_UNORM) {
for (i = 0; i < height; i++) {
GLushort ztemp[MAX_WIDTH];
}
}
- screen->tex_transfer_release(screen, &trans);
+ screen->tex_transfer_destroy(trans);
_mesa_unmap_readpix_pbo(ctx, &clippedPacking);
}
projects / mesa.git / blobdiff