diff options
Diffstat (limited to 'src/mesa/drivers/dri/common/drirenderbuffer.c')
| -rw-r--r-- | src/mesa/drivers/dri/common/drirenderbuffer.c | 180 |
1 files changed, 0 insertions, 180 deletions
diff --git a/src/mesa/drivers/dri/common/drirenderbuffer.c b/src/mesa/drivers/dri/common/drirenderbuffer.c deleted file mode 100644 index ccc39e4a8de..00000000000 --- a/src/mesa/drivers/dri/common/drirenderbuffer.c +++ /dev/null @@ -1,180 +0,0 @@ - -#include "main/mtypes.h" -#include "main/formats.h" -#include "main/renderbuffer.h" -#include "main/imports.h" -#include "drirenderbuffer.h" - - -/** - * This will get called when a window (gl_framebuffer) is resized (probably - * via driUpdateFramebufferSize(), below). - * Just update width, height and internal format fields for now. - * There's usually no memory allocation above because the present - * DRI drivers use statically-allocated full-screen buffers. If that's not - * the case for a DRI driver, a different AllocStorage method should - * be used. - */ -static GLboolean -driRenderbufferStorage(struct gl_context *ctx, struct gl_renderbuffer *rb, - GLenum internalFormat, GLuint width, GLuint height) -{ - rb->Width = width; - rb->Height = height; - rb->InternalFormat = internalFormat; - return GL_TRUE; -} - - -static void -driDeleteRenderbuffer(struct gl_renderbuffer *rb) -{ - /* don't free rb->Data Chances are it's a memory mapped region for - * the dri drivers. - */ - free(rb); -} - - -/** - * Allocate a new driRenderbuffer object. - * Individual drivers are free to implement different versions of - * this function. - * - * At this time, this function can only be used for window-system - * renderbuffers, not user-created RBOs. - * - * \param format Either GL_RGBA, GL_DEPTH_COMPONENT16, GL_DEPTH_COMPONENT24, - * GL_DEPTH_COMPONENT32, or GL_STENCIL_INDEX8_EXT (for now). - * \param addr address in main memory of the buffer. Probably a memory - * mapped region. - * \param cpp chars or bytes per pixel - * \param offset start of renderbuffer with respect to start of framebuffer - * \param pitch pixels per row - */ -driRenderbuffer * -driNewRenderbuffer(gl_format format, GLvoid *addr, - GLint cpp, GLint offset, GLint pitch, - __DRIdrawable *dPriv) -{ - driRenderbuffer *drb; - - assert(cpp > 0); - assert(pitch > 0); - - drb = calloc(1, sizeof(driRenderbuffer)); - if (drb) { - const GLuint name = 0; - - _mesa_init_renderbuffer(&drb->Base, name); - - /* Make sure we're using a null-valued GetPointer routine */ - assert(drb->Base.GetPointer(NULL, &drb->Base, 0, 0) == NULL); - - switch (format) { - case MESA_FORMAT_ARGB8888: - if (cpp == 2) { - /* override format */ - format = MESA_FORMAT_RGB565; - } - drb->Base.DataType = GL_UNSIGNED_BYTE; - break; - case MESA_FORMAT_Z16: - /* Depth */ - /* we always Get/Put 32-bit Z values */ - drb->Base.DataType = GL_UNSIGNED_INT; - assert(cpp == 2); - break; - case MESA_FORMAT_Z32: - /* Depth */ - /* we always Get/Put 32-bit Z values */ - drb->Base.DataType = GL_UNSIGNED_INT; - assert(cpp == 4); - break; - case MESA_FORMAT_Z24_S8: - drb->Base.DataType = GL_UNSIGNED_INT_24_8_EXT; - assert(cpp == 4); - break; - case MESA_FORMAT_S8_Z24: - drb->Base.DataType = GL_UNSIGNED_INT_24_8_EXT; - assert(cpp == 4); - break; - case MESA_FORMAT_S8: - /* Stencil */ - drb->Base.DataType = GL_UNSIGNED_BYTE; - break; - default: - _mesa_problem(NULL, "Bad format 0x%x in driNewRenderbuffer", format); - return NULL; - } - - drb->Base.Format = format; - - drb->Base.InternalFormat = - drb->Base._BaseFormat = _mesa_get_format_base_format(format); - - drb->Base.AllocStorage = driRenderbufferStorage; - drb->Base.Delete = driDeleteRenderbuffer; - - drb->Base.Data = addr; - - /* DRI renderbuffer-specific fields: */ - drb->dPriv = dPriv; - drb->offset = offset; - drb->pitch = pitch; - drb->cpp = cpp; - - /* may be changed if page flipping is active: */ - drb->flippedOffset = offset; - drb->flippedPitch = pitch; - drb->flippedData = addr; - } - return drb; -} - - -/** - * 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, GLboolean flipped) -{ - const GLuint count = fb->Visual.stereoMode ? 2 : 1; - GLuint lr; /* left or right */ - - /* we shouldn't really call this function if single-buffered, but - * play it safe. - */ - if (!fb->Visual.doubleBufferMode) - return; - - 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; - } - } -} |