[vlc-devel] [PATCH 2/5] opengl: initialize pl_gpu

[Steve Lhomme]

If it depends on a libplacebo version, it should check the version match 
via the version in the headers or by detecting the feature in configure.ac

On 2020-08-28 18:49, Louis Régnier wrote:
> ---
>   modules/video_output/opengl/sampler.c | 41 +++++++++++++++++++++++++++
>   1 file changed, 41 insertions(+)
> 
> diff --git a/modules/video_output/opengl/sampler.c b/modules/video_output/opengl/sampler.c
> index 4cfeada6ba..ace1d723e1 100644
> --- a/modules/video_output/opengl/sampler.c
> +++ b/modules/video_output/opengl/sampler.c
> @@ -960,7 +960,48 @@ vlc_gl_sampler_New(struct vlc_gl_interop *interop)
>   
>   #ifdef HAVE_LIBPLACEBO
>       // Create the main libplacebo context
> +    struct pl_gpu_dummy_params gpu_dummy_params = {
> +        .caps = PL_GPU_CAP_INPUT_VARIABLES,
> +        .glsl = (struct pl_glsl_desc) {
> +#       ifdef USE_OPENGL_ES2
> +            .version = 100,
> +            .gles = true,
> +#       else
> +            .version = 120,
> +#       endif
> +            .vulkan = false,
> +        },
> +    };
> +
> +    const opengl_vtable_t *vt = interop->vt;
> +
> +    vt->GetIntegerv(GL_MAX_TEXTURE_SIZE,
> +                    (GLint *)&gpu_dummy_params.limits.max_tex_1d_dim);
> +    gpu_dummy_params.limits.max_tex_2d_dim = gpu_dummy_params.limits.max_tex_1d_dim;
> +    vt->GetIntegerv(GL_MAX_3D_TEXTURE_SIZE,
> +                    (GLint *)&gpu_dummy_params.limits.max_tex_3d_dim);
> +    vt->GetIntegerv(GL_MAX_UNIFORM_BLOCK_SIZE,
> +                    (GLint *)&gpu_dummy_params.limits.max_ubo_size);
> +    vt->GetIntegerv(GL_MAX_SHADER_STORAGE_BLOCK_SIZE,
> +                    (GLint *)&gpu_dummy_params.limits.max_ssbo_size);
> +    vt->GetIntegerv(GL_MIN_PROGRAM_TEXTURE_GATHER_OFFSET_ARB,
> +                    (GLint *)&gpu_dummy_params.limits.min_gather_offset);
> +    vt->GetIntegerv(GL_MAX_PROGRAM_TEXTURE_GATHER_OFFSET_ARB,
> +                    (GLint *)&gpu_dummy_params.limits.max_gather_offset);
> +    vt->GetIntegerv(GL_MAX_COMPUTE_SHARED_MEMORY_SIZE,
> +                    (GLint *)&gpu_dummy_params.limits.max_shmem_size);
> +    vt->GetIntegerv(GL_MAX_COMPUTE_WORK_GROUP_INVOCATIONS,
> +                    (GLint *)&gpu_dummy_params.limits.max_group_threads);
> +    for (int i = 0; i < 3; i++)
> +    {
> +        vt->GetIntegeri_v(GL_MAX_COMPUTE_WORK_GROUP_COUNT, i,
> +                          (GLint *)&gpu_dummy_params.limits.max_dispatch[i]);
> +        vt->GetIntegeri_v(GL_MAX_COMPUTE_WORK_GROUP_SIZE, i,
> +                          (GLint *)&gpu_dummy_params.limits.max_group_size[i]);
> +    }
>       priv->pl_ctx = vlc_placebo_Create(VLC_OBJECT(interop->gl));
> +    priv->pl_gpu = pl_gpu_dummy_create(priv->pl_ctx, &gpu_dummy_params);
> +
>       if (priv->pl_ctx) {
>   #   if PL_API_VER >= 20
>           priv->pl_sh = pl_shader_alloc(priv->pl_ctx, &(struct pl_shader_params) {
> -- 
> 2.28.0
> 
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