diff options
Diffstat (limited to 'src/mesa/state_tracker/st_cb_readpixels.c')
-rw-r--r-- | src/mesa/state_tracker/st_cb_readpixels.c | 41 |
1 files changed, 23 insertions, 18 deletions
diff --git a/src/mesa/state_tracker/st_cb_readpixels.c b/src/mesa/state_tracker/st_cb_readpixels.c index 952d9ce915..080a5f9bfb 100644 --- a/src/mesa/state_tracker/st_cb_readpixels.c +++ b/src/mesa/state_tracker/st_cb_readpixels.c @@ -63,7 +63,7 @@ st_read_stencil_pixels(GLcontext *ctx, GLint x, GLint y, GLvoid *pixels) { struct gl_framebuffer *fb = ctx->ReadBuffer; - struct pipe_screen *screen = ctx->st->pipe->screen; + struct pipe_context *pipe = ctx->st->pipe; struct st_renderbuffer *strb = st_renderbuffer(fb->_StencilBuffer); struct pipe_transfer *pt; ubyte *stmap; @@ -81,7 +81,7 @@ st_read_stencil_pixels(GLcontext *ctx, GLint x, GLint y, width, height); /* map the stencil buffer */ - stmap = screen->transfer_map(screen, pt); + stmap = pipe->transfer_map(pipe, pt); /* width should never be > MAX_WIDTH since we did clipping earlier */ ASSERT(width <= MAX_WIDTH); @@ -161,8 +161,8 @@ st_read_stencil_pixels(GLcontext *ctx, GLint x, GLint y, } /* unmap the stencil buffer */ - screen->transfer_unmap(screen, pt); - screen->tex_transfer_destroy(pt); + pipe->transfer_unmap(pipe, pt); + pipe->tex_transfer_destroy(pipe, pt); } @@ -234,13 +234,13 @@ st_fast_readpixels(GLcontext *ctx, struct st_renderbuffer *strb, { struct pipe_context *pipe = ctx->st->pipe; - struct pipe_screen *screen = pipe->screen; struct pipe_transfer *trans; const GLubyte *map; GLubyte *dst; GLint row, col, dy, dstStride; if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { + /* convert GL Y to Gallium Y */ y = strb->texture->height0 - y - height; } @@ -252,17 +252,22 @@ st_fast_readpixels(GLcontext *ctx, struct st_renderbuffer *strb, return GL_FALSE; } - map = screen->transfer_map(screen, trans); + map = pipe->transfer_map(pipe, trans); if (!map) { - screen->tex_transfer_destroy(trans); + pipe->tex_transfer_destroy(pipe, trans); return GL_FALSE; } + /* We always write to the user/dest buffer from low addr to high addr + * but the read order depends on renderbuffer orientation + */ if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { + /* read source rows from bottom to top */ y = height - 1; dy = -1; } else { + /* read source rows from top to bottom */ y = 0; dy = 1; } @@ -311,8 +316,8 @@ st_fast_readpixels(GLcontext *ctx, struct st_renderbuffer *strb, ; /* nothing */ } - screen->transfer_unmap(screen, trans); - screen->tex_transfer_destroy(trans); + pipe->transfer_unmap(pipe, trans); + pipe->tex_transfer_destroy(pipe, trans); } return GL_TRUE; @@ -331,7 +336,6 @@ st_readpixels(GLcontext *ctx, GLint x, GLint y, GLsizei width, GLsizei height, GLvoid *dest) { struct pipe_context *pipe = ctx->st->pipe; - struct pipe_screen *screen = pipe->screen; GLfloat temp[MAX_WIDTH][4]; const GLbitfield transferOps = ctx->_ImageTransferState; GLsizei i, j; @@ -396,6 +400,7 @@ st_readpixels(GLcontext *ctx, GLint x, GLint y, GLsizei width, GLsizei height, } if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) { + /* convert GL Y to Gallium Y */ y = strb->Base.Height - y - height; } @@ -436,7 +441,7 @@ st_readpixels(GLcontext *ctx, GLint x, GLint y, GLsizei width, GLsizei height, 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); + pipe_get_tile_raw(pipe, trans, 0, y, width, 1, ztemp, 0); y += yStep; for (j = 0; j < width; j++) { zfloat[j] = (float) (scale * (ztemp[j] & 0xffffff)); @@ -451,7 +456,7 @@ st_readpixels(GLcontext *ctx, GLint x, GLint y, GLsizei width, GLsizei height, assert(format == GL_DEPTH_STENCIL_EXT); for (i = 0; i < height; i++) { GLuint *zshort = (GLuint *)dst; - pipe_get_tile_raw(trans, 0, y, width, 1, dst, 0); + pipe_get_tile_raw(pipe, trans, 0, y, width, 1, dst, 0); y += yStep; /* Reverse into 24/8 */ for (j = 0; j < width; j++) { @@ -468,7 +473,7 @@ st_readpixels(GLcontext *ctx, GLint x, GLint y, GLsizei width, GLsizei height, 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); + pipe_get_tile_raw(pipe, trans, 0, y, width, 1, ztemp, 0); y += yStep; for (j = 0; j < width; j++) { zfloat[j] = (float) (scale * ((ztemp[j] >> 8) & 0xffffff)); @@ -482,7 +487,7 @@ st_readpixels(GLcontext *ctx, GLint x, GLint y, GLsizei width, GLsizei height, /* XXX: unreachable code -- should be before st_read_stencil_pixels */ assert(format == GL_DEPTH_STENCIL_EXT); for (i = 0; i < height; i++) { - pipe_get_tile_raw(trans, 0, y, width, 1, dst, 0); + pipe_get_tile_raw(pipe, trans, 0, y, width, 1, dst, 0); y += yStep; dst += dstStride; } @@ -493,7 +498,7 @@ st_readpixels(GLcontext *ctx, GLint x, GLint y, GLsizei width, GLsizei height, GLushort ztemp[MAX_WIDTH]; GLfloat zfloat[MAX_WIDTH]; const double scale = 1.0 / 0xffff; - pipe_get_tile_raw(trans, 0, y, width, 1, ztemp, 0); + pipe_get_tile_raw(pipe, trans, 0, y, width, 1, ztemp, 0); y += yStep; for (j = 0; j < width; j++) { zfloat[j] = (float) (scale * ztemp[j]); @@ -508,7 +513,7 @@ st_readpixels(GLcontext *ctx, GLint x, GLint y, GLsizei width, GLsizei height, GLuint ztemp[MAX_WIDTH]; GLfloat zfloat[MAX_WIDTH]; const double scale = 1.0 / 0xffffffff; - pipe_get_tile_raw(trans, 0, y, width, 1, ztemp, 0); + pipe_get_tile_raw(pipe, trans, 0, y, width, 1, ztemp, 0); y += yStep; for (j = 0; j < width; j++) { zfloat[j] = (float) (scale * ztemp[j]); @@ -522,7 +527,7 @@ st_readpixels(GLcontext *ctx, GLint x, GLint y, GLsizei width, GLsizei height, /* RGBA format */ /* Do a row at a time to flip image data vertically */ for (i = 0; i < height; i++) { - pipe_get_tile_rgba(trans, 0, y, width, 1, df); + pipe_get_tile_rgba(pipe, trans, 0, y, width, 1, df); y += yStep; df += dfStride; if (!dfStride) { @@ -534,7 +539,7 @@ st_readpixels(GLcontext *ctx, GLint x, GLint y, GLsizei width, GLsizei height, } } - screen->tex_transfer_destroy(trans); + pipe->tex_transfer_destroy(pipe, trans); _mesa_unmap_pbo_dest(ctx, &clippedPacking); } |