[PATCH 5/7] wined3d: Specify geometry shader outputs to record in stream output buffers.
Józef Kucia
jkucia at codeweavers.com
Tue Mar 28 05:00:06 CDT 2017
Signed-off-by: Józef Kucia <jkucia at codeweavers.com>
---
Without ARB_transform_feedback3 the interleaved mode is very limited.
---
dlls/wined3d/glsl_shader.c | 132 ++++++++++++++++++++++++++++++++++++++++-
dlls/wined3d/shader.c | 30 ++++++++--
dlls/wined3d/wined3d_private.h | 2 +
3 files changed, 157 insertions(+), 7 deletions(-)
diff --git a/dlls/wined3d/glsl_shader.c b/dlls/wined3d/glsl_shader.c
index 004d490..128464c 100644
--- a/dlls/wined3d/glsl_shader.c
+++ b/dlls/wined3d/glsl_shader.c
@@ -727,6 +727,133 @@ static void shader_glsl_load_program_resources(const struct wined3d_context *con
shader_glsl_load_samplers(context, priv, program_id, reg_maps);
}
+static void append_transform_feedback_varying(const char **varyings, unsigned int *varying_count,
+ char **strings, unsigned int *strings_length, struct wined3d_string_buffer *buffer)
+{
+ if (varyings && *strings)
+ {
+ char *ptr = *strings;
+
+ varyings[*varying_count] = ptr;
+
+ memcpy(ptr, buffer->buffer, buffer->content_size + 1);
+ ptr += buffer->content_size + 1;
+
+ *strings = ptr;
+ }
+
+ *strings_length += buffer->content_size + 1;
+ ++(*varying_count);
+}
+
+static void shader_glsl_generate_transform_feedback_varyings(const struct wined3d_stream_output_desc *so_desc,
+ struct wined3d_string_buffer *buffer, const char **varyings, unsigned int *varying_count,
+ char *strings, unsigned int *strings_length)
+{
+ unsigned int i, j, buffer_idx, count, length, highest_output_slot;
+
+ count = length = 0;
+ highest_output_slot = 0;
+ for (buffer_idx = 0; buffer_idx < WINED3D_MAX_STREAM_OUTPUT_BUFFERS; ++buffer_idx)
+ {
+ for (i = 0; i < so_desc->element_count; ++i)
+ {
+ const struct wined3d_stream_output_element *e = &so_desc->elements[i];
+
+ highest_output_slot = max(highest_output_slot, e->output_slot);
+ if (e->output_slot != buffer_idx)
+ continue;
+
+ if (e->stream_idx)
+ {
+ FIXME("Unhandled stream %u.\n", e->stream_idx);
+ continue;
+ }
+
+ if (e->register_idx == WINED3D_STREAM_OUTPUT_GAP)
+ {
+ for (j = 0; j < e->component_count / 4; ++j)
+ {
+ string_buffer_sprintf(buffer, "gl_SkipComponents4");
+ append_transform_feedback_varying(varyings, &count, &strings, &length, buffer);
+ }
+ if (e->component_count % 4)
+ {
+ string_buffer_sprintf(buffer, "gl_SkipComponents%u", e->component_count % 4);
+ append_transform_feedback_varying(varyings, &count, &strings, &length, buffer);
+ }
+ continue;
+ }
+
+ if (e->component_idx || e->component_count != 4)
+ {
+ FIXME("Unsupported component range %u-%u.\n", e->component_idx, e->component_count);
+ continue;
+ }
+
+ string_buffer_sprintf(buffer, "ps_link[%u]", e->register_idx);
+ append_transform_feedback_varying(varyings, &count, &strings, &length, buffer);
+ }
+
+ if (highest_output_slot <= buffer_idx)
+ break;
+
+ string_buffer_sprintf(buffer, "gl_NextBuffer");
+ append_transform_feedback_varying(varyings, &count, &strings, &length, buffer);
+ }
+
+ if (varying_count)
+ *varying_count = count;
+ if (strings_length)
+ *strings_length = length;
+}
+
+static void shader_glsl_init_transform_feedback(const struct wined3d_context *context,
+ struct shader_glsl_priv *priv, GLuint program_id, const struct wined3d_shader *shader)
+{
+ const struct wined3d_stream_output_desc *so_desc = &shader->u.gs.so_desc;
+ const struct wined3d_gl_info *gl_info = context->gl_info;
+ struct wined3d_string_buffer *buffer;
+ unsigned int count, length;
+ const char **varyings;
+ char *strings;
+
+ if (!gl_info->supported[ARB_TRANSFORM_FEEDBACK3])
+ {
+ FIXME("ARB_transform_feedback3 not supported by OpenGL implementation.\n");
+ return;
+ }
+
+ if (so_desc->buffer_stride_count)
+ FIXME("Ignoring buffer strides.\n");
+
+ buffer = string_buffer_get(&priv->string_buffers);
+
+ shader_glsl_generate_transform_feedback_varyings(so_desc, buffer, NULL, &count, NULL, &length);
+
+ if (!(varyings = wined3d_calloc(count, sizeof(*varyings))))
+ {
+ ERR("Out of memory.\n");
+ string_buffer_release(&priv->string_buffers, buffer);
+ return;
+ }
+ if (!(strings = wined3d_calloc(length, sizeof(*strings))))
+ {
+ ERR("Out of memory.\n");
+ HeapFree(GetProcessHeap(), 0, varyings);
+ string_buffer_release(&priv->string_buffers, buffer);
+ return;
+ }
+
+ shader_glsl_generate_transform_feedback_varyings(so_desc, buffer, varyings, NULL, strings, NULL);
+ GL_EXTCALL(glTransformFeedbackVaryings(program_id, count, varyings, GL_INTERLEAVED_ATTRIBS));
+ checkGLcall("glTransformFeedbackVaryings");
+
+ HeapFree(GetProcessHeap(), 0, varyings);
+ HeapFree(GetProcessHeap(), 0, strings);
+ string_buffer_release(&priv->string_buffers, buffer);
+}
+
/* Context activation is done by the caller. */
static inline void walk_constant_heap(const struct wined3d_gl_info *gl_info, const struct wined3d_vec4 *constants,
const GLint *constant_locations, const struct constant_heap *heap, unsigned char *stack, DWORD version)
@@ -8994,6 +9121,8 @@ static void set_glsl_shader_program(const struct wined3d_context *context, const
checkGLcall("glProgramParameteriARB");
}
+ shader_glsl_init_transform_feedback(context, priv, program_id, gshader);
+
list_add_head(&gshader->linked_programs, &entry->gs.shader_entry);
}
@@ -9588,7 +9717,8 @@ static void shader_glsl_get_caps(const struct wined3d_gl_info *gl_info, struct s
&& gl_info->supported[ARB_SHADER_ATOMIC_COUNTERS]
&& gl_info->supported[ARB_SHADER_IMAGE_LOAD_STORE]
&& gl_info->supported[ARB_SHADER_IMAGE_SIZE]
- && gl_info->supported[ARB_SHADING_LANGUAGE_PACKING])
+ && gl_info->supported[ARB_SHADING_LANGUAGE_PACKING]
+ && gl_info->supported[ARB_TRANSFORM_FEEDBACK3])
shader_model = 5;
else if (gl_info->glsl_version >= MAKEDWORD_VERSION(1, 50) && gl_info->supported[WINED3D_GL_VERSION_3_2]
&& gl_info->supported[ARB_SHADER_BIT_ENCODING] && gl_info->supported[ARB_SAMPLER_OBJECTS]
diff --git a/dlls/wined3d/shader.c b/dlls/wined3d/shader.c
index 7ba6993..ab8d85c 100644
--- a/dlls/wined3d/shader.c
+++ b/dlls/wined3d/shader.c
@@ -2813,6 +2813,9 @@ static void shader_trace_init(const struct wined3d_shader_frontend *fe, void *fe
static void shader_cleanup(struct wined3d_shader *shader)
{
+ if (shader->reg_maps.shader_version.type == WINED3D_SHADER_TYPE_GEOMETRY)
+ HeapFree(GetProcessHeap(), 0, shader->u.gs.so_desc.elements);
+
HeapFree(GetProcessHeap(), 0, shader->output_signature.elements);
HeapFree(GetProcessHeap(), 0, shader->input_signature.elements);
HeapFree(GetProcessHeap(), 0, shader->signature_strings);
@@ -3399,9 +3402,27 @@ static HRESULT hull_shader_init(struct wined3d_shader *shader, struct wined3d_de
}
static HRESULT geometry_shader_init(struct wined3d_shader *shader, struct wined3d_device *device,
- const struct wined3d_shader_desc *desc, void *parent, const struct wined3d_parent_ops *parent_ops)
+ const struct wined3d_shader_desc *desc, const struct wined3d_stream_output_desc *so_desc,
+ void *parent, const struct wined3d_parent_ops *parent_ops)
{
- return shader_init(shader, device, desc, 0, WINED3D_SHADER_TYPE_GEOMETRY, parent, parent_ops);
+ HRESULT hr;
+
+ if (FAILED(hr = shader_init(shader, device, desc, 0, WINED3D_SHADER_TYPE_GEOMETRY, parent, parent_ops)))
+ return hr;
+
+ if (so_desc)
+ {
+ struct wined3d_stream_output_desc *d = &shader->u.gs.so_desc;
+ *d = *so_desc;
+ if (!(d->elements = wined3d_calloc(so_desc->element_count, sizeof(*d->elements))))
+ {
+ shader_cleanup(shader);
+ return E_OUTOFMEMORY;
+ }
+ memcpy(d->elements, so_desc->elements, so_desc->element_count * sizeof(*d->elements));
+ }
+
+ return WINED3D_OK;
}
void find_gs_compile_args(const struct wined3d_state *state, const struct wined3d_shader *shader,
@@ -3797,13 +3818,10 @@ HRESULT CDECL wined3d_shader_create_gs(struct wined3d_device *device, const stru
TRACE("device %p, desc %p, so_desc %p, parent %p, parent_ops %p, shader %p.\n",
device, desc, so_desc, parent, parent_ops, shader);
- if (so_desc)
- FIXME("Stream output not supported.\n");
-
if (!(object = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*object))))
return E_OUTOFMEMORY;
- if (FAILED(hr = geometry_shader_init(object, device, desc, parent, parent_ops)))
+ if (FAILED(hr = geometry_shader_init(object, device, desc, so_desc, parent, parent_ops)))
{
WARN("Failed to initialize geometry shader, hr %#x.\n", hr);
HeapFree(GetProcessHeap(), 0, object);
diff --git a/dlls/wined3d/wined3d_private.h b/dlls/wined3d/wined3d_private.h
index 3f4696e..1d59982 100644
--- a/dlls/wined3d/wined3d_private.h
+++ b/dlls/wined3d/wined3d_private.h
@@ -3610,6 +3610,8 @@ struct wined3d_geometry_shader
enum wined3d_primitive_type input_type;
enum wined3d_primitive_type output_type;
UINT vertices_out;
+
+ struct wined3d_stream_output_desc so_desc;
};
struct wined3d_pixel_shader
--
2.10.2
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