diff options
author | Brian Paul <[email protected]> | 2005-09-03 16:42:19 +0000 |
---|---|---|
committer | Brian Paul <[email protected]> | 2005-09-03 16:42:19 +0000 |
commit | e6925b51e1e71dc45079636ce336a09806356999 (patch) | |
tree | 9aedd34db3089a49b11fb5835cd660aaafcf34f4 /src/mesa/drivers/dri/common/drirenderbuffer.c | |
parent | c6262cd8c5e1ca8f702e9694c81749601287fb10 (diff) |
added flippedData field for page flipping, code to flip stereo color buffers
Diffstat (limited to 'src/mesa/drivers/dri/common/drirenderbuffer.c')
-rw-r--r-- | src/mesa/drivers/dri/common/drirenderbuffer.c | 70 |
1 files changed, 45 insertions, 25 deletions
diff --git a/src/mesa/drivers/dri/common/drirenderbuffer.c b/src/mesa/drivers/dri/common/drirenderbuffer.c index 45c81e293c6..8376fa27170 100644 --- a/src/mesa/drivers/dri/common/drirenderbuffer.c +++ b/src/mesa/drivers/dri/common/drirenderbuffer.c @@ -22,6 +22,16 @@ driRenderbufferStorage(GLcontext *ctx, struct gl_renderbuffer *rb, } +static void +driDeleteRenderbuffer(struct gl_renderbuffer *rb) +{ + /* don't free rb->Data Chances are it's a memory mapped region for + * the dri drivers. + */ + _mesa_free(rb); +} + + /** * Allocate a new driRenderbuffer object. * Individual drivers are free to implement different versions of @@ -86,8 +96,7 @@ driNewRenderbuffer(GLenum format, GLint cpp, GLint offset, GLint pitch) */ drb->Base.AllocStorage = driRenderbufferStorage; - /* using default Delete function */ - + drb->Base.Delete = driDeleteRenderbuffer; /* DRI renderbuffer-specific fields: */ drb->offset = offset; @@ -103,32 +112,43 @@ driNewRenderbuffer(GLenum format, GLint cpp, GLint offset, GLint pitch) /** - * Update the front and back renderbuffers' flippedPitch/Offset fields. + * Update the front and back renderbuffers' flippedPitch/Offset/Data fields. + * If stereo, flip both the left and right pairs. * This is used when we do double buffering via page flipping. + * \param fb the framebuffer we're page flipping + * \param flipped if true, set flipped values, else set non-flipped values */ void -driFlipRenderbuffers(struct gl_framebuffer *fb, GLenum flipped) +driFlipRenderbuffers(struct gl_framebuffer *fb, GLboolean flipped) { - driRenderbuffer *front_drb - = (driRenderbuffer *) fb->Attachment[BUFFER_FRONT_LEFT].Renderbuffer; - driRenderbuffer *back_drb - = (driRenderbuffer *) fb->Attachment[BUFFER_BACK_LEFT].Renderbuffer; - - /* If this fails, it means we're trying to do page flipping for a - * single-buffered window! - */ - assert(back_drb); - - if (flipped) { - front_drb->flippedOffset = back_drb->offset; - front_drb->flippedPitch = back_drb->pitch; - back_drb->flippedOffset = front_drb->offset; - back_drb->flippedPitch = front_drb->pitch; - } - else { - front_drb->flippedOffset = front_drb->offset; - front_drb->flippedPitch = front_drb->pitch; - back_drb->flippedOffset = back_drb->offset; - back_drb->flippedPitch = back_drb->pitch; + const GLuint count = fb->Visual.stereoMode ? 2 : 1; + GLuint lr; /* left or right */ + + ASSERT(fb->Visual.doubleBufferMode); + + for (lr = 0; lr < count; lr++) { + GLuint frontBuf = (lr == 0) ? BUFFER_FRONT_LEFT : BUFFER_FRONT_RIGHT; + GLuint backBuf = (lr == 0) ? BUFFER_BACK_LEFT : BUFFER_BACK_RIGHT; + driRenderbuffer *front_drb + = (driRenderbuffer *) fb->Attachment[frontBuf].Renderbuffer; + driRenderbuffer *back_drb + = (driRenderbuffer *) fb->Attachment[backBuf].Renderbuffer; + + if (flipped) { + front_drb->flippedOffset = back_drb->offset; + front_drb->flippedPitch = back_drb->pitch; + front_drb->flippedData = back_drb->Base.Data; + back_drb->flippedOffset = front_drb->offset; + back_drb->flippedPitch = front_drb->pitch; + back_drb->flippedData = front_drb->Base.Data; + } + else { + front_drb->flippedOffset = front_drb->offset; + front_drb->flippedPitch = front_drb->pitch; + front_drb->flippedData = front_drb->Base.Data; + back_drb->flippedOffset = back_drb->offset; + back_drb->flippedPitch = back_drb->pitch; + back_drb->flippedData = back_drb->Base.Data; + } } } |