}
+/**
+ * Create a temporary texture to hold an image of the given size.
+ * If width, height are not POT and the driver only handles POT textures,
+ * allocate the next larger size of texture that is POT.
+ */
+static struct pipe_texture *
+alloc_texture(struct st_context *st, GLsizei width, GLsizei height,
+ enum pipe_format texFormat)
+{
+ struct pipe_context *pipe = st->pipe;
+ struct pipe_screen *screen = pipe->screen;
+ struct pipe_texture *pt;
+ int ptw, pth;
+
+ ptw = width;
+ pth = height;
+
+ /* Need to use POT texture? */
+ if (!screen->get_param(screen, PIPE_CAP_NPOT_TEXTURES)) {
+ int l2pt, maxSize;
+
+ l2pt = util_logbase2(width);
+ if (1 << l2pt != width) {
+ ptw = 1 << (l2pt + 1);
+ }
+
+ l2pt = util_logbase2(height);
+ if (1 << l2pt != height) {
+ pth = 1 << (l2pt + 1);
+ }
+
+ /* Check against maximum texture size */
+ maxSize = 1 << (pipe->screen->get_param(pipe->screen,
+ PIPE_CAP_MAX_TEXTURE_2D_LEVELS) - 1);
+ assert(ptw <= maxSize);
+ assert(pth <= maxSize);
+ }
+
+ pt = st_texture_create(st, PIPE_TEXTURE_2D, texFormat, 0,
+ ptw, pth, 1, PIPE_TEXTURE_USAGE_SAMPLER);
+
+ return pt;
+}
+
+
/**
* Make texture containing an image for glDrawPixels image.
* If 'pixels' is NULL, leave the texture image data undefined.
{
GLcontext *ctx = st->ctx;
struct pipe_context *pipe = st->pipe;
- struct pipe_screen *screen = pipe->screen;
gl_format mformat;
struct pipe_texture *pt;
enum pipe_format pipeFormat;
GLuint cpp;
GLenum baseFormat;
- int ptw, pth;
baseFormat = base_format(format);
if (!pixels)
return NULL;
- /* Need to use POT texture? */
- ptw = width;
- pth = height;
- if (!screen->get_param(screen, PIPE_CAP_NPOT_TEXTURES)) {
- int l2pt, maxSize;
-
- l2pt = util_logbase2(width);
- if (1<<l2pt != width) {
- ptw = 1<<(l2pt+1);
- }
- l2pt = util_logbase2(height);
- if (1<<l2pt != height) {
- pth = 1<<(l2pt+1);
- }
-
- /* Check against maximum texture size */
- maxSize = 1 << (pipe->screen->get_param(pipe->screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS) - 1);
- assert(ptw <= maxSize);
- assert(pth <= maxSize);
- }
-
- pt = st_texture_create(st, PIPE_TEXTURE_2D, pipeFormat, 0, ptw, pth, 1,
- PIPE_TEXTURE_USAGE_SAMPLER);
+ /* alloc temporary texture */
+ pt = alloc_texture(st, width, height, pipeFormat);
if (!pt) {
_mesa_unmap_pbo_source(ctx, unpack);
return NULL;
width, height);
/* map texture transfer */
- dest = screen->transfer_map(screen, transfer);
+ dest = pipe->transfer_map(pipe, transfer);
/* Put image into texture transfer.
unpack);
/* unmap */
- screen->transfer_unmap(screen, transfer);
- screen->tex_transfer_destroy(transfer);
+ pipe->transfer_unmap(pipe, transfer);
+ pipe->tex_transfer_destroy(pipe, transfer);
assert(success);
/**
* Draw quad with texcoords and optional color.
- * Coords are window coords with y=0=bottom.
+ * Coords are gallium window coords with y=0=top.
* \param color may be null
* \param invertTex if true, flip texcoords vertically
*/
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);
/* rasterizer state: just scissor */
{
cso_set_viewport(cso, &vp);
}
+ cso_set_vertex_elements(cso, 3, st->velems_util_draw);
+
/* 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 window coords (y=0=bottom) with pixel zoom.
+ /* Compute Gallium window coords (y=0=top) with pixel zoom.
* Recall that these coords are transformed by the current
* vertex shader and viewport transformation.
*/
+ if (st_fb_orientation(ctx->DrawBuffer) == Y_0_BOTTOM) {
+ y = ctx->DrawBuffer->Height - (int) (y + height * ctx->Pixel.ZoomY);
+ invertTex = !invertTex;
+ }
+
x0 = (GLfloat) x;
x1 = x + width * ctx->Pixel.ZoomX;
y0 = (GLfloat) y;
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 st_context *st = st_context(ctx);
struct pipe_context *pipe = st->pipe;
- struct pipe_screen *screen = pipe->screen;
struct st_renderbuffer *strb;
enum pipe_transfer_usage usage;
struct pipe_transfer *pt;
usage, x, y,
width, height);
- stmap = screen->transfer_map(screen, pt);
+ stmap = pipe->transfer_map(pipe, pt);
pixels = _mesa_map_pbo_source(ctx, &clippedUnpack, pixels);
assert(pixels);
_mesa_unmap_pbo_source(ctx, &clippedUnpack);
/* 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);
}
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);
}
}
GLint dstx, GLint dsty)
{
struct st_renderbuffer *rbDraw = st_renderbuffer(ctx->DrawBuffer->_StencilBuffer);
- struct pipe_screen *screen = ctx->st->pipe->screen;
+ struct pipe_context *pipe = ctx->st->pipe;
enum pipe_transfer_usage usage;
struct pipe_transfer *ptDraw;
ubyte *drawMap;
assert(util_format_get_blockheight(ptDraw->texture->format) == 1);
/* map the stencil buffer */
- drawMap = screen->transfer_map(screen, ptDraw);
+ drawMap = pipe->transfer_map(pipe, ptDraw);
/* draw */
/* XXX PixelZoom not handled yet */
free(buffer);
/* unmap the stencil buffer */
- screen->transfer_unmap(screen, ptDraw);
- screen->tex_transfer_destroy(ptDraw);
+ pipe->transfer_unmap(pipe, ptDraw);
+ pipe->tex_transfer_destroy(pipe, ptDraw);
}
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;
- int ptw, pth;
+ 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 */
}
}
- if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) {
- srcy = ctx->DrawBuffer->Height - srcy - height;
-
- if (srcy < 0) {
- height -= -srcy;
- srcy = 0;
- }
-
- if (height < 0)
- return;
- }
-
- /* Need to use POT texture? */
- ptw = width;
- pth = height;
- if (!screen->get_param(screen, PIPE_CAP_NPOT_TEXTURES)) {
- int l2pt, maxSize;
-
- l2pt = util_logbase2(width);
- if (1<<l2pt != width) {
- ptw = 1<<(l2pt+1);
- }
- l2pt = util_logbase2(height);
- if (1<<l2pt != height) {
- pth = 1<<(l2pt+1);
- }
-
- /* Check against maximum texture size */
- maxSize = 1 << (pipe->screen->get_param(pipe->screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS) - 1);
- assert(ptw <= maxSize);
- assert(pth <= maxSize);
+ /* Invert src region if needed */
+ if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) {
+ srcy = ctx->ReadBuffer->Height - srcy - height;
+ invertTex = !invertTex;
}
- pt = st_texture_create(st, PIPE_TEXTURE_2D, texFormat, 0,
- ptw, pth, 1,
- PIPE_TEXTURE_USAGE_SAMPLER);
+ /* 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.
+ */
if (srcFormat == texFormat) {
/* copy source framebuffer surface into mipmap/texture */
struct pipe_surface *psRead = screen->get_tex_surface(screen,
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) {
+ /* debug */
+ debug_dump_surface(pipe, "copypixsrcsurf", psRead);
+ debug_dump_surface(pipe, "copypixtemptex", psTex);
+ }
+
pipe_surface_reference(&psRead, NULL);
pipe_surface_reference(&psTex, NULL);
}
/* 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(ptRead, 0, 0, width, height, buf);
- pipe_put_tile_rgba(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(ptRead, 0, 0, width, height, buf);
- pipe_put_tile_z(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);
}
- screen->tex_transfer_destroy(ptRead);
- screen->tex_transfer_destroy(ptTex);
+ pipe->tex_transfer_destroy(pipe, ptRead);
+ 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, GL_TRUE);
+ color, invertTex);
pipe_texture_reference(&pt, NULL);
+ pipe_sampler_view_reference(&sv, NULL);
}
projects / mesa.git / blobdiff