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osmesa: use swrast_renderbuffer

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(cherry picked from commit 797c18be1f)
This commit is contained in:
Brian Paul 2012-01-16 13:01:35 -07:00 • committed by Ian Romanick
parent 83602e8342
commit 9567178ca2
1 changed files with 44 additions and 41 deletions
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85
src/mesa/drivers/osmesa/osmesa.c
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@ -67,7 +67,7 @@ struct osmesa_context
{
struct gl_context mesa; /*< Base class - this must be first */
struct gl_config *gl_visual; /*< Describes the buffers */
struct gl_renderbuffer *rb; /*< The user's colorbuffer */
struct swrast_renderbuffer *srb; /*< The user's colorbuffer */
struct gl_framebuffer *gl_buffer; /*< The framebuffer, containing user's rb */
GLenum format; /*< User-specified context format */
GLint userRowLength; /*< user-specified number of pixels per row */
@ -354,16 +354,16 @@ static void
compute_row_addresses( OSMesaContext osmesa )
{
GLint bytesPerRow, i;
GLubyte *origin = (GLubyte *) osmesa->rb->Buffer;
GLubyte *origin = (GLubyte *) osmesa->srb->Buffer;
GLint rowlength; /* in pixels */
GLint height = osmesa->rb->Height;
GLint height = osmesa->srb->Base.Height;
if (osmesa->userRowLength)
rowlength = osmesa->userRowLength;
else
rowlength = osmesa->rb->Width;
rowlength = osmesa->srb->Base.Width;
bytesPerRow = rowlength * _mesa_get_format_bytes(osmesa->rb->Format);
bytesPerRow = rowlength * _mesa_get_format_bytes(osmesa->srb->Base.Format);
if (osmesa->yup) {
/* Y=0 is bottom line of window */
@ -505,21 +505,25 @@ osmesa_renderbuffer_storage(struct gl_context *ctx, struct gl_renderbuffer *rb,
/**
* Allocate a new renderbuffer to describe the user-provided color buffer.
*/
static struct gl_renderbuffer *
static struct swrast_renderbuffer *
new_osmesa_renderbuffer(struct gl_context *ctx, GLenum format, GLenum type)
{
const GLuint name = 0;
struct gl_renderbuffer *rb = _mesa_new_renderbuffer(ctx, name);
if (rb) {
rb->RefCount = 1;
rb->Delete = osmesa_delete_renderbuffer;
rb->AllocStorage = osmesa_renderbuffer_storage;
rb->ClassID = OSMESA_RENDERBUFFER_CLASS;
struct swrast_renderbuffer *srb = CALLOC_STRUCT(swrast_renderbuffer);
rb->InternalFormat = GL_RGBA;
rb->_BaseFormat = GL_RGBA;
if (srb) {
_mesa_init_renderbuffer(&srb->Base, name);
srb->Base.ClassID = OSMESA_RENDERBUFFER_CLASS;
srb->Base.Delete = osmesa_delete_renderbuffer;
srb->Base.AllocStorage = osmesa_renderbuffer_storage;
srb->Base.InternalFormat = GL_RGBA;
srb->Base._BaseFormat = GL_RGBA;
return srb;
}
return rb;
return NULL;
}
@ -535,6 +539,7 @@ osmesa_MapRenderbuffer(struct gl_context *ctx,
if (rb->ClassID == OSMESA_RENDERBUFFER_CLASS) {
/* this is an OSMesa renderbuffer which wraps user memory */
struct swrast_renderbuffer *srb = swrast_renderbuffer(rb);
const GLuint bpp = _mesa_get_format_bytes(rb->Format);
GLint rowStride; /* in bytes */
@ -552,7 +557,7 @@ osmesa_MapRenderbuffer(struct gl_context *ctx,
*rowStrideOut = rowStride;
}
*mapOut = (GLubyte *) rb->Data + y * rowStride + x * bpp;
*mapOut = (GLubyte *) srb->Buffer + y * rowStride + x * bpp;
}
else {
_swrast_map_soft_renderbuffer(ctx, rb, x, y, w, h, mode,
@ -795,8 +800,8 @@ GLAPI void GLAPIENTRY
OSMesaDestroyContext( OSMesaContext osmesa )
{
if (osmesa) {
if (osmesa->rb)
_mesa_reference_renderbuffer(&osmesa->rb, NULL);
if (osmesa->srb)
_mesa_reference_renderbuffer((struct gl_renderbuffer **) &osmesa->srb, NULL);
_mesa_meta_free( &osmesa->mesa );
@ -879,11 +884,12 @@ OSMesaMakeCurrent( OSMesaContext osmesa, void *buffer, GLenum type,
* that converts rendering from CHAN_BITS to the user-requested channel
* size.
*/
if (!osmesa->rb) {
osmesa->rb = new_osmesa_renderbuffer(&osmesa->mesa, osmesa->format, type);
if (!osmesa->srb) {
osmesa->srb = new_osmesa_renderbuffer(&osmesa->mesa, osmesa->format, type);
_mesa_remove_renderbuffer(osmesa->gl_buffer, BUFFER_FRONT_LEFT);
_mesa_add_renderbuffer(osmesa->gl_buffer, BUFFER_FRONT_LEFT, osmesa->rb);
assert(osmesa->rb->RefCount == 2);
_mesa_add_renderbuffer(osmesa->gl_buffer, BUFFER_FRONT_LEFT,
&osmesa->srb->Base);
assert(osmesa->srb->Base.RefCount == 2);
}
osmesa->DataType = type;
@ -891,8 +897,8 @@ OSMesaMakeCurrent( OSMesaContext osmesa, void *buffer, GLenum type,
/* Set renderbuffer fields. Set width/height = 0 to force
* osmesa_renderbuffer_storage() being called by _mesa_resize_framebuffer()
*/
osmesa->rb->Buffer = buffer;
osmesa->rb->Width = osmesa->rb->Height = 0;
osmesa->srb->Buffer = buffer;
osmesa->srb->Base.Width = osmesa->srb->Base.Height = 0;
/* Set the framebuffer's size. This causes the
* osmesa_renderbuffer_storage() function to get called.
@ -906,7 +912,8 @@ OSMesaMakeCurrent( OSMesaContext osmesa, void *buffer, GLenum type,
* renderbuffer adaptor/wrapper if needed (for bpp conversion).
*/
_mesa_remove_renderbuffer(osmesa->gl_buffer, BUFFER_FRONT_LEFT);
_mesa_add_renderbuffer(osmesa->gl_buffer, BUFFER_FRONT_LEFT, osmesa->rb);
_mesa_add_renderbuffer(osmesa->gl_buffer, BUFFER_FRONT_LEFT,
&osmesa->srb->Base);
/* this updates the visual's red/green/blue/alphaBits fields */
@ -981,12 +988,7 @@ OSMesaGetIntegerv( GLint pname, GLint *value )
return;
case OSMESA_TYPE:
/* current color buffer's data type */
if (osmesa->rb) {
*value = osmesa->DataType;
}
else {
*value = 0;
}
*value = osmesa->DataType;
return;
case OSMESA_ROW_LENGTH:
*value = osmesa->userRowLength;
@ -1019,12 +1021,13 @@ GLAPI GLboolean GLAPIENTRY
OSMesaGetDepthBuffer( OSMesaContext c, GLint *width, GLint *height,
GLint *bytesPerValue, void **buffer )
{
struct gl_renderbuffer *rb = NULL;
struct swrast_renderbuffer *srb = NULL;
if (c->gl_buffer)
rb = c->gl_buffer->Attachment[BUFFER_DEPTH].Renderbuffer;
srb = swrast_renderbuffer(c->gl_buffer->
Attachment[BUFFER_DEPTH].Renderbuffer);
if (!rb || !rb->Buffer) {
if (!srb || !srb->Buffer) {
*width = 0;
*height = 0;
*bytesPerValue = 0;
@ -1032,13 +1035,13 @@ OSMesaGetDepthBuffer( OSMesaContext c, GLint *width, GLint *height,
return GL_FALSE;
}
else {
*width = rb->Width;
*height = rb->Height;
*width = srb->Base.Width;
*height = srb->Base.Height;
if (c->gl_visual->depthBits <= 16)
*bytesPerValue = sizeof(GLushort);
else
*bytesPerValue = sizeof(GLuint);
*buffer = (void *) rb->Buffer;
*buffer = (void *) srb->Buffer;
return GL_TRUE;
}
}
@ -1056,11 +1059,11 @@ GLAPI GLboolean GLAPIENTRY
OSMesaGetColorBuffer( OSMesaContext osmesa, GLint *width,
GLint *height, GLint *format, void **buffer )
{
if (osmesa->rb && osmesa->rb->Buffer) {
*width = osmesa->rb->Width;
*height = osmesa->rb->Height;
if (osmesa->srb && osmesa->srb->Buffer) {
*width = osmesa->srb->Base.Width;
*height = osmesa->srb->Base.Height;
*format = osmesa->format;
*buffer = (void *) osmesa->rb->Buffer;
*buffer = (void *) osmesa->srb->Buffer;
return GL_TRUE;
}
else {