draw_textured_quad(GLcontext *ctx, GLint x, GLint y, GLfloat z,
GLsizei width, GLsizei height,
GLfloat zoomX, GLfloat zoomY,
- struct pipe_texture *pt,
+ struct pipe_sampler_view *sv,
void *driver_vp,
void *driver_fp,
const GLfloat *color,
cso_save_rasterizer(cso);
cso_save_viewport(cso);
cso_save_samplers(cso);
- cso_save_sampler_textures(cso);
+ cso_save_fragment_sampler_views(cso);
cso_save_fragment_shader(cso);
cso_save_vertex_shader(cso);
cso_save_vertex_elements(cso);
/* texture state: */
if (st->pixel_xfer.pixelmap_enabled) {
- struct pipe_texture *textures[2];
- textures[0] = pt;
- textures[1] = st->pixel_xfer.pixelmap_texture;
- pipe->set_fragment_sampler_textures(pipe, 2, textures);
+ struct pipe_sampler_view *sampler_views[2];
+ sampler_views[0] = sv;
+ sampler_views[1] = st->pixel_xfer.pixelmap_sampler_view;
+ cso_set_fragment_sampler_views(cso, 2, sampler_views);
}
else {
- pipe->set_fragment_sampler_textures(pipe, 1, &pt);
+ cso_set_fragment_sampler_views(cso, 1, &sv);
}
/* Compute Gallium window coords (y=0=top) with pixel zoom.
z = z * 2.0 - 1.0;
draw_quad(ctx, x0, y0, z, x1, y1, color, invertTex,
- (GLfloat) width / pt->width0,
- (GLfloat) height / pt->height0);
+ (GLfloat) width / sv->texture->width0,
+ (GLfloat) height / sv->texture->height0);
/* restore state */
cso_restore_rasterizer(cso);
cso_restore_viewport(cso);
cso_restore_samplers(cso);
- cso_restore_sampler_textures(cso);
+ cso_restore_fragment_sampler_views(cso);
cso_restore_fragment_shader(cso);
cso_restore_vertex_shader(cso);
cso_restore_vertex_elements(cso);
struct pipe_texture *pt
= make_texture(st, width, height, format, type, unpack, pixels);
if (pt) {
- draw_textured_quad(ctx, x, y, ctx->Current.RasterPos[2],
- width, height, ctx->Pixel.ZoomX, ctx->Pixel.ZoomY,
- pt,
- driver_vp,
- driver_fp,
- color, GL_FALSE);
+ struct pipe_sampler_view *sv = st_sampler_view_from_texture(st->pipe, pt);
+
+ if (sv) {
+ draw_textured_quad(ctx, x, y, ctx->Current.RasterPos[2],
+ width, height, ctx->Pixel.ZoomX, ctx->Pixel.ZoomY,
+ sv,
+ driver_vp,
+ driver_fp,
+ color, GL_FALSE);
+ pipe_sampler_view_reference(&sv, NULL);
+ }
pipe_texture_reference(&pt, NULL);
}
}
struct st_renderbuffer *rbRead;
void *driver_vp, *driver_fp;
struct pipe_texture *pt;
+ struct pipe_sampler_view *sv;
GLfloat *color;
enum pipe_format srcFormat, texFormat;
GLboolean invertTex = GL_FALSE;
+ GLint readX, readY, readW, readH;
+ struct gl_pixelstore_attrib unpack = ctx->DefaultPacking;
pipe->flush(pipe, PIPE_FLUSH_RENDER_CACHE, NULL);
st_validate_state(st);
- if (srcx < 0) {
- width -= -srcx;
- dstx += -srcx;
- srcx = 0;
- }
-
- if (srcy < 0) {
- height -= -srcy;
- dsty += -srcy;
- srcy = 0;
- }
-
- if (dstx < 0) {
- width -= -dstx;
- srcx += -dstx;
- dstx = 0;
- }
-
- if (dsty < 0) {
- height -= -dsty;
- srcy += -dsty;
- dsty = 0;
- }
-
- if (width < 0 || height < 0)
- return;
-
-
if (type == GL_STENCIL) {
/* can't use texturing to do stencil */
copy_stencil_pixels(ctx, srcx, srcy, width, height, dstx, dsty);
texFormat = st_choose_format(screen, GL_DEPTH_COMPONENT,
PIPE_TEXTURE_2D,
PIPE_TEXTURE_USAGE_DEPTH_STENCIL);
- assert(texFormat != PIPE_FORMAT_NONE); /* XXX no depth texture formats??? */
+ assert(texFormat != PIPE_FORMAT_NONE);
}
else {
/* default color format */
}
}
+ /* Invert src region if needed */
if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) {
srcy = ctx->ReadBuffer->Height - srcy - height;
-
- if (srcy < 0) {
- height -= -srcy;
- srcy = 0;
- }
-
- if (height < 0)
- return;
-
invertTex = !invertTex;
}
+ /* Clip the read region against the src buffer bounds.
+ * We'll still allocate a temporary buffer/texture for the original
+ * src region size but we'll only read the region which is on-screen.
+ * This may mean that we draw garbage pixels into the dest region, but
+ * that's expected.
+ */
+ readX = srcx;
+ readY = srcy;
+ readW = width;
+ readH = height;
+ _mesa_clip_readpixels(ctx, &readX, &readY, &readW, &readH, &unpack);
+ readW = MAX2(0, readW);
+ readH = MAX2(0, readH);
+
/* alloc temporary texture */
pt = alloc_texture(st, width, height, texFormat);
if (!pt)
return;
+ sv = st_sampler_view_from_texture(st->pipe, pt);
+ if (!sv) {
+ pipe_texture_reference(&pt, NULL);
+ return;
+ }
+
/* Make temporary texture which is a copy of the src region.
- * We'll draw a quad with this texture to draw the dest image.
*/
if (srcFormat == texFormat) {
/* copy source framebuffer surface into mipmap/texture */
PIPE_BUFFER_USAGE_GPU_WRITE );
if (pipe->surface_copy) {
pipe->surface_copy(pipe,
- psTex, /* dest */
- 0, 0, /* destx/y */
- psRead,
- srcx, srcy, width, height);
+ psTex, /* dest surf */
+ unpack.SkipPixels, unpack.SkipRows, /* dest pos */
+ psRead, /* src surf */
+ readX, readY, readW, readH); /* src region */
} else {
util_surface_copy(pipe, FALSE,
psTex,
- 0, 0,
+ unpack.SkipPixels, unpack.SkipRows,
psRead,
- srcx, srcy, width, height);
+ readX, readY, readW, readH);
}
if (0) {
/* CPU-based fallback/conversion */
struct pipe_transfer *ptRead =
st_cond_flush_get_tex_transfer(st, rbRead->texture, 0, 0, 0,
- PIPE_TRANSFER_READ, srcx, srcy, width,
- height);
+ PIPE_TRANSFER_READ,
+ readX, readY, readW, readH);
struct pipe_transfer *ptTex;
enum pipe_transfer_usage transfer_usage;
ptTex = st_cond_flush_get_tex_transfer(st, pt, 0, 0, 0, transfer_usage,
0, 0, width, height);
+ /* copy image from ptRead surface to ptTex surface */
if (type == GL_COLOR) {
/* alternate path using get/put_tile() */
GLfloat *buf = (GLfloat *) malloc(width * height * 4 * sizeof(GLfloat));
-
- pipe_get_tile_rgba(pipe, ptRead, 0, 0, width, height, buf);
- pipe_put_tile_rgba(pipe, ptTex, 0, 0, width, height, buf);
-
+ pipe_get_tile_rgba(pipe, ptRead, readX, readY, readW, readH, buf);
+ pipe_put_tile_rgba(pipe, ptTex, unpack.SkipPixels, unpack.SkipRows,
+ readW, readH, buf);
free(buf);
}
else {
/* GL_DEPTH */
GLuint *buf = (GLuint *) malloc(width * height * sizeof(GLuint));
- pipe_get_tile_z(pipe, ptRead, 0, 0, width, height, buf);
- pipe_put_tile_z(pipe, ptTex, 0, 0, width, height, buf);
+ pipe_get_tile_z(pipe, ptRead, readX, readY, readW, readH, buf);
+ pipe_put_tile_z(pipe, ptTex, unpack.SkipPixels, unpack.SkipRows,
+ readW, readH, buf);
free(buf);
}
pipe->tex_transfer_destroy(pipe, ptTex);
}
- /* draw textured quad */
+ /* OK, the texture 'pt' contains the src image/pixels. Now draw a
+ * textured quad with that texture.
+ */
draw_textured_quad(ctx, dstx, dsty, ctx->Current.RasterPos[2],
width, height, ctx->Pixel.ZoomX, ctx->Pixel.ZoomY,
- pt,
+ sv,
driver_vp,
driver_fp,
color, invertTex);
pipe_texture_reference(&pt, NULL);
+ pipe_sampler_view_reference(&sv, NULL);
}
projects / mesa.git / blobdiff