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i965: implement GL_MESA_framebuffer_flip_y [v3] 

Instead of using _mesa_is_winsys_fbo or
_mesa_is_user_fbo to infer if an fbo is
flipped use the FlipY flag.

v2:
  * additional window-system framebuffer checks [for jason]
v3:
  * s/inverted_y/flip_y/g [for chadv]
  * s/InvertedY/FlipY/g [for chadv]

Reviewed-by: Chad Versace <chadversary@chromium.org>
This commit is contained in:
Fritz Koenig 2018-07-23 10:10:55 -07:00 committed by Chad Versace
parent 318c265160
commit ab05dd183c
9 changed files with 44 additions and 46 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
src/mesa/drivers/dri/i965/brw_blorp.c
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@ -740,7 +740,7 @@ brw_blorp_copytexsubimage(struct brw_context *brw,
/* Account for the fact that in the system framebuffer, the origin is at
* the lower left.
*/
bool mirror_y = _mesa_is_winsys_fbo(ctx->ReadBuffer);
bool mirror_y = ctx->ReadBuffer->FlipY;
if (mirror_y)
apply_y_flip(&srcY0, &srcY1, src_rb->Height);

4
src/mesa/drivers/dri/i965/brw_meta_util.c
View File

@ -250,13 +250,13 @@ brw_meta_mirror_clip_and_scissor(const struct gl_context *ctx,
/* Account for the fact that in the system framebuffer, the origin is at
* the lower left.
*/
if (_mesa_is_winsys_fbo(read_fb)) {
if (read_fb->FlipY) {
GLint tmp = read_fb->Height - *srcY0;
*srcY0 = read_fb->Height - *srcY1;
*srcY1 = tmp;
*mirror_y = !*mirror_y;
}
if (_mesa_is_winsys_fbo(draw_fb)) {
if (draw_fb->FlipY) {
GLint tmp = draw_fb->Height - *dstY0;
*dstY0 = draw_fb->Height - *dstY1;
*dstY1 = tmp;

6
src/mesa/drivers/dri/i965/brw_sf.c
View File

@ -90,7 +90,7 @@ brw_upload_sf_prog(struct brw_context *brw)
return;
/* _NEW_BUFFERS */
bool render_to_fbo = _mesa_is_user_fbo(ctx->DrawBuffer);
bool flip_y = ctx->DrawBuffer->FlipY;
memset(&key, 0, sizeof(key));
@ -137,7 +137,7 @@ brw_upload_sf_prog(struct brw_context *brw)
* Window coordinates in a FBO are inverted, which means point
* sprite origin must be inverted, too.
*/
if ((ctx->Point.SpriteOrigin == GL_LOWER_LEFT) != render_to_fbo)
if ((ctx->Point.SpriteOrigin == GL_LOWER_LEFT) == flip_y)
key.sprite_origin_lower_left = true;
/* BRW_NEW_FS_PROG_DATA */
@ -161,7 +161,7 @@ brw_upload_sf_prog(struct brw_context *brw)
* face orientation, just as we invert the viewport in
* sf_unit_create_from_key().
*/
key.frontface_ccw = brw->polygon_front_bit == render_to_fbo;
key.frontface_ccw = brw->polygon_front_bit != flip_y;
}
if (!brw_search_cache(&brw->cache, BRW_CACHE_SF_PROG, &key, sizeof(key),

52
src/mesa/drivers/dri/i965/genX_state_upload.c
View File

@ -217,7 +217,7 @@ genX(upload_polygon_stipple)(struct brw_context *brw)
* to a FBO (i.e. any named frame buffer object), we *don't*
* need to invert - we already match the layout.
*/
if (_mesa_is_winsys_fbo(ctx->DrawBuffer)) {
if (ctx->DrawBuffer->FlipY) {
for (unsigned i = 0; i < 32; i++)
poly.PatternRow[i] = ctx->PolygonStipple[31 - i]; /* invert */
} else {
@ -257,7 +257,7 @@ genX(upload_polygon_stipple_offset)(struct brw_context *brw)
* to a user-created FBO then our native pixel coordinate system
* works just fine, and there's no window system to worry about.
*/
if (_mesa_is_winsys_fbo(ctx->DrawBuffer)) {
if (ctx->DrawBuffer->FlipY) {
poly.PolygonStippleYOffset =
(32 - (_mesa_geometric_height(ctx->DrawBuffer) & 31)) & 31;
}
@ -1468,7 +1468,7 @@ genX(upload_clip_state)(struct brw_context *brw)
#endif
#if GEN_GEN == 7
clip.FrontWinding = brw->polygon_front_bit == _mesa_is_user_fbo(fb);
clip.FrontWinding = brw->polygon_front_bit != fb->FlipY;
if (ctx->Polygon.CullFlag) {
switch (ctx->Polygon.CullFaceMode) {
@ -1583,7 +1583,7 @@ genX(upload_sf)(struct brw_context *brw)
#if GEN_GEN <= 7
/* _NEW_BUFFERS */
bool render_to_fbo = _mesa_is_user_fbo(ctx->DrawBuffer);
bool flip_y = ctx->DrawBuffer->FlipY;
UNUSED const bool multisampled_fbo =
_mesa_geometric_samples(ctx->DrawBuffer) > 1;
#endif
@ -1635,7 +1635,7 @@ genX(upload_sf)(struct brw_context *brw)
#if GEN_GEN <= 7
/* _NEW_POLYGON */
sf.FrontWinding = brw->polygon_front_bit == render_to_fbo;
sf.FrontWinding = brw->polygon_front_bit != flip_y;
#if GEN_GEN >= 6
sf.GlobalDepthOffsetEnableSolid = ctx->Polygon.OffsetFill;
sf.GlobalDepthOffsetEnableWireframe = ctx->Polygon.OffsetLine;
@ -1773,7 +1773,7 @@ genX(upload_sf)(struct brw_context *brw)
* Window coordinates in an FBO are inverted, which means point
* sprite origin must be inverted, too.
*/
if ((ctx->Point.SpriteOrigin == GL_LOWER_LEFT) != render_to_fbo) {
if ((ctx->Point.SpriteOrigin == GL_LOWER_LEFT) == flip_y) {
sf.PointSpriteTextureCoordinateOrigin = LOWERLEFT;
} else {
sf.PointSpriteTextureCoordinateOrigin = UPPERLEFT;
@ -2379,7 +2379,7 @@ const struct brw_tracked_state genX(cc_vp) = {
static void
set_scissor_bits(const struct gl_context *ctx, int i,
bool render_to_fbo, unsigned fb_width, unsigned fb_height,
bool flip_y, unsigned fb_width, unsigned fb_height,
struct GENX(SCISSOR_RECT) *sc)
{
int bbox[4];
@ -2401,7 +2401,7 @@ set_scissor_bits(const struct gl_context *ctx, int i,
sc->ScissorRectangleXMax = 0;
sc->ScissorRectangleYMin = 1;
sc->ScissorRectangleYMax = 0;
} else if (render_to_fbo) {
} else if (!flip_y) {
/* texmemory: Y=0=bottom */
sc->ScissorRectangleXMin = bbox[0];
sc->ScissorRectangleXMax = bbox[1] - 1;
@ -2421,7 +2421,7 @@ static void
genX(upload_scissor_state)(struct brw_context *brw)
{
struct gl_context *ctx = &brw->ctx;
const bool render_to_fbo = _mesa_is_user_fbo(ctx->DrawBuffer);
const bool flip_y = ctx->DrawBuffer->FlipY;
struct GENX(SCISSOR_RECT) scissor;
uint32_t scissor_state_offset;
const unsigned int fb_width = _mesa_geometric_width(ctx->DrawBuffer);
@ -2445,7 +2445,7 @@ genX(upload_scissor_state)(struct brw_context *brw)
* inclusive but max is exclusive.
*/
for (unsigned i = 0; i < viewport_count; i++) {
set_scissor_bits(ctx, i, render_to_fbo, fb_width, fb_height, &scissor);
set_scissor_bits(ctx, i, flip_y, fb_width, fb_height, &scissor);
GENX(SCISSOR_RECT_pack)(
NULL, scissor_map + i * GENX(SCISSOR_RECT_length), &scissor);
}
@ -2571,7 +2571,7 @@ genX(upload_sf_clip_viewport)(struct brw_context *brw)
const unsigned viewport_count = brw->clip.viewport_count;
/* _NEW_BUFFERS */
const bool render_to_fbo = _mesa_is_user_fbo(ctx->DrawBuffer);
const bool flip_y = ctx->DrawBuffer->FlipY;
const uint32_t fb_width = (float)_mesa_geometric_width(ctx->DrawBuffer);
const uint32_t fb_height = (float)_mesa_geometric_height(ctx->DrawBuffer);
@ -2595,12 +2595,12 @@ genX(upload_sf_clip_viewport)(struct brw_context *brw)
#endif
/* _NEW_BUFFERS */
if (render_to_fbo) {
y_scale = 1.0;
y_bias = 0;
} else {
if (flip_y) {
y_scale = -1.0;
y_bias = (float)fb_height;
} else {
y_scale = 1.0;
y_bias = 0;
}
for (unsigned i = 0; i < brw->clip.viewport_count; i++) {
@ -2628,7 +2628,7 @@ genX(upload_sf_clip_viewport)(struct brw_context *brw)
clv.YMaxClipGuardband = gb_ymax;
#if GEN_GEN < 6
set_scissor_bits(ctx, i, render_to_fbo, fb_width, fb_height,
set_scissor_bits(ctx, i, flip_y, fb_width, fb_height,
&sfv.ScissorRectangle);
#elif GEN_GEN >= 8
/* _NEW_VIEWPORT | _NEW_BUFFERS: Screen Space Viewport
@ -2645,16 +2645,16 @@ genX(upload_sf_clip_viewport)(struct brw_context *brw)
const float viewport_Ymax =
MIN2(ctx->ViewportArray[i].Y + ctx->ViewportArray[i].Height, fb_height);
if (render_to_fbo) {
sfv.XMinViewPort = viewport_Xmin;
sfv.XMaxViewPort = viewport_Xmax - 1;
sfv.YMinViewPort = viewport_Ymin;
sfv.YMaxViewPort = viewport_Ymax - 1;
} else {
if (flip_y) {
sfv.XMinViewPort = viewport_Xmin;
sfv.XMaxViewPort = viewport_Xmax - 1;
sfv.YMinViewPort = fb_height - viewport_Ymax;
sfv.YMaxViewPort = fb_height - viewport_Ymin - 1;
} else {
sfv.XMinViewPort = viewport_Xmin;
sfv.XMaxViewPort = viewport_Xmax - 1;
sfv.YMinViewPort = viewport_Ymin;
sfv.YMaxViewPort = viewport_Ymax - 1;
}
#endif
@ -3585,14 +3585,14 @@ genX(upload_sbe)(struct brw_context *brw)
sbe.NumberofSFOutputAttributes = wm_prog_data->num_varying_inputs;
/* _NEW_BUFFERS */
bool render_to_fbo = _mesa_is_user_fbo(ctx->DrawBuffer);
bool flip_y = ctx->DrawBuffer->FlipY;
/* _NEW_POINT
*
* Window coordinates in an FBO are inverted, which means point
* sprite origin must be inverted.
*/
if ((ctx->Point.SpriteOrigin == GL_LOWER_LEFT) != render_to_fbo)
if ((ctx->Point.SpriteOrigin == GL_LOWER_LEFT) == flip_y)
sbe.PointSpriteTextureCoordinateOrigin = LOWERLEFT;
else
sbe.PointSpriteTextureCoordinateOrigin = UPPERLEFT;
@ -4520,7 +4520,7 @@ genX(upload_raster)(struct brw_context *brw)
const struct gl_context *ctx = &brw->ctx;
/* _NEW_BUFFERS */
const bool render_to_fbo = _mesa_is_user_fbo(ctx->DrawBuffer);
const bool flip_y = ctx->DrawBuffer->FlipY;
/* _NEW_POLYGON */
const struct gl_polygon_attrib *polygon = &ctx->Polygon;
@ -4529,7 +4529,7 @@ genX(upload_raster)(struct brw_context *brw)
const struct gl_point_attrib *point = &ctx->Point;
brw_batch_emit(brw, GENX(3DSTATE_RASTER), raster) {
if (brw->polygon_front_bit == render_to_fbo)
if (brw->polygon_front_bit != flip_y)
raster.FrontWinding = CounterClockwise;
if (polygon->CullFlag) {

1
src/mesa/drivers/dri/i965/intel_extensions.c
View File

@ -119,6 +119,7 @@ intelInitExtensions(struct gl_context *ctx)
ctx->Extensions.AMD_seamless_cubemap_per_texture = true;
ctx->Extensions.APPLE_object_purgeable = true;
ctx->Extensions.ATI_texture_env_combine3 = true;
ctx->Extensions.MESA_framebuffer_flip_y = true;
ctx->Extensions.MESA_pack_invert = true;
ctx->Extensions.NV_conditional_render = true;
ctx->Extensions.NV_fog_distance = true;

11
src/mesa/drivers/dri/i965/intel_fbo.c
View File

@ -115,9 +115,6 @@ intel_map_renderbuffer(struct gl_context *ctx,
void *map;
ptrdiff_t stride;
/* driver does not support GL_FRAMEBUFFER_FLIP_Y_MESA */
assert((rb->Name == 0) == flip_y);
if (srb->Buffer) {
/* this is a malloc'd renderbuffer (accum buffer), not an irb */
GLint bpp = _mesa_get_format_bytes(rb->Format);
@ -166,14 +163,14 @@ intel_map_renderbuffer(struct gl_context *ctx,
* upside-down. So we need to ask for a rectangle on flipped vertically, and
* we then return a pointer to the bottom of it with a negative stride.
*/
if (rb->Name == 0) {
if (flip_y) {
y = rb->Height - y - h;
}
intel_miptree_map(brw, mt, irb->mt_level, irb->mt_layer,
x, y, w, h, mode, &map, &stride);
if (rb->Name == 0) {
if (flip_y) {
map += (h - 1) * stride;
stride = -stride;
}
@ -849,10 +846,10 @@ intel_blit_framebuffer_with_blitter(struct gl_context *ctx,
if (!intel_miptree_blit(brw,
src_irb->mt,
src_irb->mt_level, src_irb->mt_layer,
srcX0, srcY0, src_rb->Name == 0,
srcX0, srcY0, readFb->FlipY,
dst_irb->mt,
dst_irb->mt_level, dst_irb->mt_layer,
dstX0, dstY0, dst_rb->Name == 0,
dstX0, dstY0, drawFb->FlipY,
dstX1 - dstX0, dstY1 - dstY0,
COLOR_LOGICOP_COPY)) {
perf_debug("glBlitFramebuffer(): unknown blit failure. "

8
src/mesa/drivers/dri/i965/intel_pixel_bitmap.c
View File

@ -158,10 +158,10 @@ static GLuint get_bitmap_rect(GLsizei width, GLsizei height,
static inline int
y_flip(struct gl_framebuffer *fb, int y, int height)
{
if (_mesa_is_user_fbo(fb))
return y;
else
if (fb->FlipY)
return fb->Height - y - height;
else
return y;
}
/*
@ -283,7 +283,7 @@ do_blit_bitmap( struct gl_context *ctx,
w, h,
(GLubyte *)stipple,
8,
_mesa_is_winsys_fbo(fb));
fb->FlipY);
if (count == 0)
continue;

4
src/mesa/drivers/dri/i965/intel_pixel_copy.c
View File

@ -170,9 +170,9 @@ do_blit_copypixels(struct gl_context * ctx,
if (!intel_miptree_blit(brw,
read_irb->mt, read_irb->mt_level, read_irb->mt_layer,
srcx, srcy, _mesa_is_winsys_fbo(read_fb),
srcx, srcy, read_fb->FlipY,
draw_irb->mt, draw_irb->mt_level, draw_irb->mt_layer,
dstx, dsty, _mesa_is_winsys_fbo(fb),
dstx, dsty, fb->FlipY,
width, height,
(ctx->Color.ColorLogicOpEnabled ?
ctx->Color._LogicOp : COLOR_LOGICOP_COPY))) {

2
src/mesa/drivers/dri/i965/intel_pixel_draw.c
View File

@ -127,7 +127,7 @@ do_blit_drawpixels(struct gl_context * ctx,
pbo_mt, 0, 0,
0, 0, src_flip,
irb->mt, irb->mt_level, irb->mt_layer,
x, y, _mesa_is_winsys_fbo(ctx->DrawBuffer),
x, y, ctx->DrawBuffer->FlipY,
width, height, COLOR_LOGICOP_COPY)) {
DBG("%s: blit failed\n", __func__);
intel_miptree_release(&pbo_mt);