}
+/**
+ * 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
*/
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;
{
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);
}
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 pipe_sampler_view *sv;
GLfloat *color;
enum pipe_format srcFormat, texFormat;
- int ptw, pth;
+ GLboolean invertTex = GL_FALSE;
pipe->flush(pipe, PIPE_FLUSH_RENDER_CACHE, NULL);
}
}
- if (st_fb_orientation(ctx->DrawBuffer) == Y_0_TOP) {
- srcy = ctx->DrawBuffer->Height - srcy - height;
+ if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) {
+ srcy = ctx->ReadBuffer->Height - srcy - height;
if (srcy < 0) {
height -= -srcy;
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);
+ invertTex = !invertTex;
}
- pt = st_texture_create(st, PIPE_TEXTURE_2D, texFormat, 0,
- ptw, pth, 1,
- PIPE_TEXTURE_USAGE_SAMPLER);
+ /* alloc temporary texture */
+ pt = alloc_texture(st, width, height, texFormat);
if (!pt)
return;
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 */
struct pipe_surface *psRead = screen->get_tex_surface(screen,
psRead,
srcx, srcy, width, height);
}
+
+ 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);
}
/* 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, 0, 0, width, height, buf);
+ pipe_put_tile_rgba(pipe, ptTex, 0, 0, width, height, 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, 0, 0, width, height, buf);
+ pipe_put_tile_z(pipe, ptTex, 0, 0, width, height, 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 */
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