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tests/vgem_fb_test: Use gbm_bo_import and gbm_bo_map

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Voilà! GBM (using generic API) and GEM (using drm_intel) now perform equally.
This commit is contained in:
Tiago Vignatti 2015-06-02 18:01:28 -03:00
parent 4938e30751
commit 834bd09e86
1 changed files with 42 additions and 44 deletions
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86
tests/vgem_fb_test.c
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@ -16,6 +16,7 @@
#define _GNU_SOURCE
#include <assert.h>
#include <dlfcn.h>
#include <errno.h>
#include <fcntl.h>
#include <stdbool.h>
@ -35,7 +36,7 @@
#include "drmtest.h"
// to use DRM, one has to comment USE_GEM defines.
#define USE_GEM
//#define USE_GEM
#ifdef USE_GEM
#include "ioctl_wrappers.h"
@ -58,13 +59,15 @@ struct context {
#ifdef USE_GEM
drm_intel_bufmgr *bufmgr;
drm_intel_bo *intel_bo_handle[BUFFERS];
// render
drm_intel_bo *intel_bo[BUFFERS];
unsigned long bo_stride;
#else
struct gbm_device *drm_gbm;
struct gbm_bo *gbm_buffer[BUFFERS];
// render
struct gbm_bo *drm_bo[BUFFERS];
#endif
uint32_t bo_handle[BUFFERS];
};
#ifdef USE_GEM
@ -110,28 +113,6 @@ static void * mmap_intel_bo(drm_intel_bo *buffer)
assert(buffer->virtual);
return buffer->virtual;
}
#else
void * mmap_dumb_bo(int fd, int handle, size_t size)
{
struct drm_mode_map_dumb mmap_arg;
void *ptr;
int ret;
memset(&mmap_arg, 0, sizeof(mmap_arg));
mmap_arg.handle = handle;
ret = drmIoctl(fd, DRM_IOCTL_MODE_MAP_DUMB, &mmap_arg);
assert(ret == 0);
assert(mmap_arg.offset != 0);
ptr = mmap(NULL, size, (PROT_READ|PROT_WRITE), MAP_SHARED, fd,
mmap_arg.offset);
assert(ptr != MAP_FAILED);
return ptr;
}
#endif
static bool setup_drm(struct context *ctx)
@ -275,8 +256,8 @@ static void draw(struct context *ctx)
size_t bo_stride = ctx->bo_stride;
size_t bo_size = ctx->bo_stride * ctx->mode->vdisplay;
#else
size_t bo_stride = gbm_bo_get_stride(ctx->gbm_buffer[fb_idx]);
size_t bo_size = gbm_bo_get_stride(ctx->gbm_buffer[fb_idx]) * gbm_bo_get_height(ctx->gbm_buffer[fb_idx]);
size_t bo_stride = gbm_bo_get_stride(ctx->drm_bo[fb_idx]);
size_t bo_size = gbm_bo_get_stride(ctx->drm_bo[fb_idx]) * gbm_bo_get_height(ctx->drm_bo[fb_idx]);
#endif
uint32_t *bo_ptr;
volatile uint32_t *ptr;
@ -288,9 +269,9 @@ static void draw(struct context *ctx)
if (!disable_profiling)
gettimeofday(&start, NULL);
#ifdef USE_GEM
bo_ptr = (uint32_t*)mmap_intel_bo(ctx->intel_bo_handle[fb_idx]);
bo_ptr = (uint32_t*)mmap_intel_bo(ctx->intel_bo[fb_idx]);
#else
bo_ptr = mmap_dumb_bo(ctx->drm_card_fd, ctx->bo_handle[fb_idx], bo_size);
bo_ptr = gbm_bo_map(ctx->drm_bo[fb_idx]);
#endif
if (!disable_profiling) {
gettimeofday(&end, NULL);
@ -331,9 +312,9 @@ static void draw(struct context *ctx)
}
}
#ifdef USE_GEM
drm_intel_bo_unmap(ctx->intel_bo_handle[fb_idx]);
drm_intel_bo_unmap(ctx->intel_bo[fb_idx]);
#else
munmap(bo_ptr, bo_size);
gbm_bo_unmap(ctx->drm_bo[fb_idx]);
#endif
usleep(1e6 / 120); /* 120 Hz */
@ -361,6 +342,7 @@ int main(int argc, char **argv)
int ret = 0;
struct context ctx;
unsigned long bo_stride = 0;
uint32_t bo_handle[BUFFERS];
int drm_prime_fd;
size_t i;
@ -383,6 +365,13 @@ int main(int argc, char **argv)
ctx.card_fd = ctx.drm_card_fd;
fprintf(stderr, "Method to open video card: DRM\n");
/* GBM will load a dri driver, but even though they need symbols from
* libglapi, in some version of Mesa they are not linked to it. Since
* only the gl-renderer module links to it, the call above won't make
* these symbols globally available, and loading the DRI driver fails.
* Workaround this by dlopen()'ing libglapi with RTLD_GLOBAL. */
dlopen("libglapi.so.0", RTLD_LAZY | RTLD_GLOBAL);
ctx.drm_gbm = gbm_create_device(ctx.drm_card_fd);
if (!ctx.drm_gbm) {
fprintf(stderr, "failed to create gbm device on %s\n", drm_card_path);
@ -412,19 +401,20 @@ int main(int argc, char **argv)
ctx.bo_stride = bo_stride;
drm_intel_bo_gem_export_to_prime(intel_bo, &drm_prime_fd);
#else
ctx.gbm_buffer[i] = gbm_bo_create(ctx.drm_gbm,
struct gbm_bo *gbm_buffer;
gbm_buffer = gbm_bo_create(ctx.drm_gbm,
ctx.mode->hdisplay, ctx.mode->vdisplay, GBM_BO_FORMAT_XRGB8888,
GBM_BO_USE_SCANOUT | GBM_BO_USE_RENDERING);
GBM_BO_USE_LINEAR);
if (!ctx.gbm_buffer[i]) {
if (!gbm_buffer) {
fprintf(stderr, "failed to create buffer object\n");
ret = 1;
goto free_buffers;
}
bo_stride = gbm_bo_get_stride(ctx.gbm_buffer[i]);
bo_stride = gbm_bo_get_stride(gbm_buffer);
drm_prime_fd = gbm_bo_get_fd(ctx.gbm_buffer[i]);
drm_prime_fd = gbm_bo_get_fd(gbm_buffer);
#endif // USE_GEM
if (drm_prime_fd < 0) {
fprintf(stderr, "failed to turn handle into fd\n");
@ -433,19 +423,29 @@ int main(int argc, char **argv)
}
ret = drmPrimeFDToHandle(ctx.drm_card_fd, drm_prime_fd,
&ctx.bo_handle[i]);
&bo_handle[i]);
if (ret) {
fprintf(stderr, "failed to import handle\n");
ret = 1;
goto free_buffers;
}
#ifdef USE_GEM
ctx.intel_bo_handle[i] = drm_intel_bo_gem_create_from_prime(
ctx.intel_bo[i] = drm_intel_bo_gem_create_from_prime(
ctx.bufmgr, drm_prime_fd, BO_SIZE);
#else
struct gbm_import_fd_data gbm_dmabuf = {
.fd = drm_prime_fd,
.width = ctx.mode->hdisplay,
.height = ctx.mode->vdisplay,
.stride = bo_stride,
.format = DRM_FORMAT_XRGB8888
};
ctx.drm_bo[i] = gbm_bo_import(ctx.drm_gbm, GBM_BO_IMPORT_FD, &gbm_dmabuf, 0);
#endif
ret = drmModeAddFB(ctx.drm_card_fd, ctx.mode->hdisplay, ctx.mode->vdisplay,
24, 32, bo_stride, ctx.bo_handle[i], &ctx.drm_fb_id[i]);
24, 32, bo_stride, bo_handle[i], &ctx.drm_fb_id[i]);
if (ret) {
fprintf(stderr, "failed to add fb\n");
ret = 1;
@ -467,8 +467,8 @@ free_buffers:
if (ctx.drm_fb_id[i])
drmModeRmFB(ctx.drm_card_fd, ctx.drm_fb_id[i]);
#ifndef USE_GEM
if (ctx.gbm_buffer[i])
gbm_bo_destroy(ctx.gbm_buffer[i]);
if (ctx.drm_bo[i])
gbm_bo_destroy(ctx.drm_bo[i]);
#endif
}
@ -482,7 +482,5 @@ destroy_drm_gbm:
close_card:
close(ctx.drm_card_fd);
fail:
return ret;
igt_exit();
}