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/*
* Direct Rendering Support for SMedia Glamo 336x/337x
*
* (c) 2009 Thomas White <taw@bitwiz.org.uk>
* Roughly based on sis_screen.c (c) 2003 Eric Anholt
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include "dri_util.h"
#include "utils.h"
#include "xmlconfig.h"
#include "GL/internal/dri_interface.h"
#include "main/framebuffer.h"
#include "main/renderbuffer.h"
#include "glamo_screen.h"
#include "glamo_context.h"
#include "glamo_fbo.h"
/* This comes from libdrm_glamo */
#include <glamo_bo_gem.h>
static int glamoInitDriver(__DRIscreen *psp)
{
return 0;
}
static glamoScreenPtr glamoCreateScreen(__DRIscreen *sPriv)
{
glamoScreenPtr glamoScreen;
/* Allocate the private area */
glamoScreen = (glamoScreenPtr)CALLOC(sizeof(*glamoScreen));
if ( glamoScreen == NULL )
return NULL;
glamoScreen->driScreen = sPriv;
/* This is our link to the kernel's memory manager, via libdrm */
glamoScreen->bom = glamo_bo_manager_gem_ctor(sPriv->fd);
return glamoScreen;
}
static void glamoDestroyScreen(__DRIscreen *sPriv)
{
glamoScreenPtr glamoScreen = (glamoScreenPtr)sPriv->private;
if ( glamoScreen == NULL )
return;
FREE(glamoScreen);
sPriv->private = NULL;
}
static const __DRIconfig **glamoInitScreen(__DRIscreen *sPriv)
{
__DRIconfig **configs;
uint8_t depth_bits_array[2];
uint8_t stencil_bits_array[2];
uint8_t msaa_samples_array[1];
static const GLenum db_modes[] = { GLX_SWAP_COPY_OML, GLX_NONE };
/* Driver initialisation */
if ( glamoInitDriver(sPriv) ) {
return NULL;
}
/* Screen-specific initialisation */
sPriv->private = glamoCreateScreen(sPriv);
if ( !sPriv->private ) {
glamoDestroyScreen(sPriv);
return NULL;
}
depth_bits_array[0] = 0;
stencil_bits_array[0] = 0;
depth_bits_array[1] = 16;
stencil_bits_array[1] = 0;
msaa_samples_array[0] = 0;
configs = driCreateConfigs(GL_RGB, GL_UNSIGNED_SHORT_5_6_5,
depth_bits_array, stencil_bits_array, 2,
db_modes, 2, msaa_samples_array, 1);
if ( configs == NULL ) {
fprintf(stderr, "[%s:%u] Error creating FBConfig!\n", __func__, __LINE__);
return NULL;
}
return (const __DRIconfig **)configs;
}
static const __DRIconfig **glamoInitScreen2(__DRIscreen *sPriv)
{
__DRIconfig **configs;
uint8_t depth_bits_array[2];
uint8_t stencil_bits_array[2];
uint8_t msaa_samples_array[1];
static const GLenum db_modes[] = { GLX_SWAP_COPY_OML, GLX_NONE };
/* Driver initialisation */
if ( glamoInitDriver(sPriv) ) {
return NULL;
}
/* Screen-specific initialisation */
sPriv->private = glamoCreateScreen(sPriv);
if ( !sPriv->private ) {
glamoDestroyScreen(sPriv);
return NULL;
}
depth_bits_array[0] = 0;
stencil_bits_array[0] = 0;
depth_bits_array[1] = 16;
stencil_bits_array[1] = 0;
msaa_samples_array[0] = 0;
configs = driCreateConfigs(GL_RGB, GL_UNSIGNED_SHORT_5_6_5,
depth_bits_array, stencil_bits_array, 2,
db_modes, 2, msaa_samples_array, 1);
if ( configs == NULL ) {
fprintf(stderr, "[%s:%u] Error creating FBConfig!\n", __func__, __LINE__);
return NULL;
}
return (const __DRIconfig **)configs;
}
/* Allocate buffers for a context. This is where the fun starts... */
static GLboolean glamoCreateBuffer(__DRIscreen *driScrnPriv,
__DRIdrawable *driDrawPriv,
const __GLcontextModes *mesaVis,
GLboolean isPixmap)
{
struct glamo_framebuffer *gfb;
GLenum rgbFormat;
if ( isPixmap ) return GL_FALSE; /* not implemented */
gfb = CALLOC_STRUCT(glamo_framebuffer);
if ( !gfb ) return GL_FALSE;
_mesa_initialize_framebuffer(&gfb->base, mesaVis);
/* we only support this one format at the moment */
rgbFormat = GL_RGB5;
/* Front color renderbuffer */
gfb->color_rb[0] = glamo_create_renderbuffer(rgbFormat, driDrawPriv);
_mesa_add_renderbuffer(&gfb->base, BUFFER_FRONT_LEFT,
&gfb->color_rb[0]->base);
/* Back color renderbuffer, if requested */
if ( mesaVis->doubleBufferMode ) {
gfb->color_rb[1] = glamo_create_renderbuffer(rgbFormat, driDrawPriv);
_mesa_add_renderbuffer(&gfb->base, BUFFER_BACK_LEFT,
&gfb->color_rb[1]->base);
}
if ( mesaVis->depthBits == 16 ) {
struct glamo_renderbuffer *depth;
depth = glamo_create_renderbuffer(GL_DEPTH_COMPONENT16, driDrawPriv);
_mesa_add_renderbuffer(&gfb->base, BUFFER_DEPTH, &depth->base);
}
/* Add software renderbuffers for the things we can't support in hardware */
_mesa_add_soft_renderbuffers(&gfb->base,
GL_FALSE, /* color */
GL_FALSE, /* depth */
mesaVis->stencilBits > 0, /* stencil, if required */
mesaVis->accumRedBits > 0, /* accum, if required */
GL_FALSE, /* alpha */
GL_FALSE /* aux */
);
driDrawPriv->driverPrivate = (void *)gfb;
return (driDrawPriv->driverPrivate != NULL);
}
static void glamoDestroyBuffer(__DRIdrawable *driDrawPriv)
{
}
static void glamoSwapBuffers(__DRIdrawable *driDrawPriv)
{
printf("glamoSwapBuffers\n"); fflush(stdout);
}
/*
* Mesa entry points
*
* See src/mesa/drivers/dri/common/dri_util.h for information about these
*/
const struct __DriverAPIRec driDriverAPI = {
.InitScreen = glamoInitScreen,
.DestroyScreen = glamoDestroyScreen,
.CreateContext = glamoCreateContext,
.DestroyContext = glamoDestroyContext,
.CreateBuffer = glamoCreateBuffer,
.DestroyBuffer = glamoDestroyBuffer,
.SwapBuffers = glamoSwapBuffers,
.MakeCurrent = glamoMakeCurrent,
.UnbindContext = glamoUnbindContext,
.GetSwapInfo = NULL, /* Not used */
.WaitForMSC = NULL,
.WaitForSBC = NULL,
.SwapBuffersMSC = NULL,
.CopySubBuffer = NULL,
.GetDrawableMSC = NULL, /* Not used */
.InitScreen2 = glamoInitScreen2, /* For DRI2 */
};
/* kate: space-indent on; indent-width 3; mixedindent off; indent-mode cstyle; */
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