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d3d11testsrc: Use const buffer in shader

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Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5426>
This commit is contained in:
Seungha Yang 2023-09-30 20:30:44 +09:00 committed by GStreamer Marge Bot
parent 42717a30f8
commit 6fdcd07e59
1 changed files with 76 additions and 40 deletions
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116
subprojects/gst-plugins-bad/sys/d3d11/gstd3d11testsrc.cpp
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@ -187,6 +187,21 @@ enum
COLOR_DARK_GREY,
};
typedef struct
{
FLOAT time;
FLOAT alpha;
FLOAT padding[2];
} SnowConstBuffer;
typedef struct
{
FLOAT width;
FLOAT height;
FLOAT checker_size;
FLOAT alpha;
} CheckerConstBuffer;
typedef struct
{
ID3D11PixelShader *ps;
@ -197,6 +212,10 @@ typedef struct
ID3D11Buffer *const_buffer;
guint vertex_stride;
guint index_count;
gboolean is_checker;
gboolean is_snow;
CheckerConstBuffer checker_const_buffer;
SnowConstBuffer snow_const_buffer;
} GstD3D11TestSrcQuad;
typedef struct
@ -240,12 +259,6 @@ struct _GstD3D11TestSrc
GstClockTime running_time;
};
typedef struct
{
FLOAT time;
FLOAT padding[3];
} TimeConstBuffer;
typedef struct
{
struct
@ -288,7 +301,7 @@ static const gchar templ_vs_coord[] =
" float4 Position: SV_POSITION;\n"
" float2 Texture: TEXCOORD;\n"
"};\n"
"VS_OUTPUT main (VS_INPUT input)\n"
"VS_OUTPUT VSMain_coord (VS_INPUT input)\n"
"{\n"
" return input;\n"
"}";
@ -302,16 +315,17 @@ static const gchar templ_vs_color[] =
" float4 Position: SV_POSITION;\n"
" float4 Color: COLOR;\n"
"};\n"
"VS_OUTPUT main (VS_INPUT input)\n"
"VS_OUTPUT VSMain_color (VS_INPUT input)\n"
"{\n"
" return input;\n"
"}";
static const gchar templ_ps_snow[] =
"cbuffer TimeConstBuffer : register(b0)\n"
"cbuffer SnowConstBuffer : register(b0)\n"
"{\n"
" float time;\n"
" float3 padding;\n"
" float alpha;\n"
" float2 padding;\n"
"}\n"
"struct PS_INPUT {\n"
" float4 Position: SV_POSITION;\n"
@ -321,12 +335,12 @@ static const gchar templ_ps_snow[] =
"{\n"
" return frac(sin(dot(uv, float2(12.9898,78.233))) * 43758.5453);\n"
"}\n"
"float4 main(PS_INPUT input) : SV_Target\n"
"float4 PSMain_snow(PS_INPUT input) : SV_Target\n"
"{\n"
" float4 output;\n"
" float val = get_rand (time * input.Texture);\n"
" output.rgb = float3(val, val, val);\n"
" output.a = %s;\n"
" output.a = alpha;\n"
" return output;\n"
"}";
@ -335,20 +349,24 @@ static const gchar templ_ps_smpte[] =
" float4 Position: SV_POSITION;\n"
" float4 Color: COLOR;\n"
"};\n"
"float4 main(PS_INPUT input) : SV_TARGET\n"
"float4 PSMain_smpte (PS_INPUT input) : SV_TARGET\n"
"{\n"
" return input.Color;\n"
"}";
static const gchar templ_ps_checker[] =
"static const float width = %d;\n"
"static const float height = %d;\n"
"static const float checker_size = %d;\n"
"cbuffer CheckerConstBuffer : register(b0)\n"
"{\n"
" float width;\n"
" float height;\n"
" float checker_size;\n"
" float alpha;\n"
"};\n"
"struct PS_INPUT {\n"
" float4 Position: SV_POSITION;\n"
" float2 Texture: TEXCOORD;\n"
"};\n"
"float4 main(PS_INPUT input) : SV_Target\n"
"float4 PSMain_checker (PS_INPUT input) : SV_Target\n"
"{\n"
" float4 output;\n"
" float2 xy_mod = floor (0.5 * input.Texture * float2 (width, height) / checker_size);\n"
@ -356,7 +374,7 @@ static const gchar templ_ps_checker[] =
" output.r = step (result, 0.5);\n"
" output.g = 1.0 - output.r;\n"
" output.b = 0;\n"
" output.a = %s;\n"
" output.a = alpha;\n"
" return output;\n"
"}";
/* *INDENT-ON* */
@ -382,8 +400,6 @@ setup_snow_render (GstD3D11TestSrc * self, GstD3D11TestSrcRender * render,
ComPtr < ID3D11Buffer > index_buffer;
ComPtr < ID3D11Buffer > const_buffer;
GstD3D11TestSrcQuad *quad;
gchar *ps_src;
gchar float_str_buf[G_ASCII_DTOSTR_BUF_SIZE];
memset (input_desc, 0, sizeof (input_desc));
memset (&buffer_desc, 0, sizeof (buffer_desc));
@ -405,16 +421,14 @@ setup_snow_render (GstD3D11TestSrc * self, GstD3D11TestSrcRender * render,
input_desc[1].InstanceDataStepRate = 0;
hr = gst_d3d11_create_vertex_shader_simple (self->device, templ_vs_coord,
"main", input_desc, G_N_ELEMENTS (input_desc), &vs, &layout);
"VSMain_coord", input_desc, G_N_ELEMENTS (input_desc), &vs, &layout);
if (!gst_d3d11_result (hr, self->device)) {
GST_ERROR_OBJECT (self, "Failed to compile vertext shader");
return FALSE;
}
g_ascii_formatd (float_str_buf, G_ASCII_DTOSTR_BUF_SIZE, "%f", self->alpha);
ps_src = g_strdup_printf (templ_ps_snow, float_str_buf);
hr = gst_d3d11_create_pixel_shader_simple (self->device, ps_src, "main", &ps);
g_free (ps_src);
hr = gst_d3d11_create_pixel_shader_simple (self->device,
templ_ps_snow, "PSMain_snow", &ps);
if (!gst_d3d11_result (hr, self->device)) {
GST_ERROR_OBJECT (self, "Failed to compile pixel shader");
return FALSE;
@ -443,7 +457,7 @@ setup_snow_render (GstD3D11TestSrc * self, GstD3D11TestSrcRender * render,
}
buffer_desc.Usage = D3D11_USAGE_DYNAMIC;
buffer_desc.ByteWidth = sizeof (TimeConstBuffer);
buffer_desc.ByteWidth = sizeof (SnowConstBuffer);
buffer_desc.BindFlags = D3D11_BIND_CONSTANT_BUFFER;
buffer_desc.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE;
hr = device_handle->CreateBuffer (&buffer_desc, nullptr, &const_buffer);
@ -566,6 +580,9 @@ setup_snow_render (GstD3D11TestSrc * self, GstD3D11TestSrcRender * render,
quad->const_buffer = const_buffer.Detach ();
quad->vertex_stride = sizeof (UvVertexData);
quad->index_count = 6;
quad->is_snow = TRUE;
quad->snow_const_buffer.time = 0;
quad->snow_const_buffer.alpha = self->alpha;
return TRUE;
}
@ -612,14 +629,14 @@ setup_smpte_render (GstD3D11TestSrc * self, GstD3D11TestSrcRender * render)
input_desc[1].InstanceDataStepRate = 0;
hr = gst_d3d11_create_vertex_shader_simple (self->device, templ_vs_color,
"main", input_desc, G_N_ELEMENTS (input_desc), &vs, &layout);
"VSMain_color", input_desc, G_N_ELEMENTS (input_desc), &vs, &layout);
if (!gst_d3d11_result (hr, self->device)) {
GST_ERROR_OBJECT (self, "Failed to compile vertext shader");
return FALSE;
}
hr = gst_d3d11_create_pixel_shader_simple (self->device,
templ_ps_smpte, "main", &ps);
templ_ps_smpte, "PSMain_smpte", &ps);
if (!gst_d3d11_result (hr, self->device)) {
GST_ERROR_OBJECT (self, "Failed to compile pixel shader");
return FALSE;
@ -937,9 +954,8 @@ setup_checker_render (GstD3D11TestSrc * self, GstD3D11TestSrcRender * render,
ComPtr < ID3D11InputLayout > layout;
ComPtr < ID3D11Buffer > vertex_buffer;
ComPtr < ID3D11Buffer > index_buffer;
ComPtr < ID3D11Buffer > const_buffer;
GstD3D11TestSrcQuad *quad;
gchar *ps_src;
gchar float_str_buf[G_ASCII_DTOSTR_BUF_SIZE];
memset (input_desc, 0, sizeof (input_desc));
memset (&buffer_desc, 0, sizeof (buffer_desc));
@ -961,18 +977,14 @@ setup_checker_render (GstD3D11TestSrc * self, GstD3D11TestSrcRender * render,
input_desc[1].InstanceDataStepRate = 0;
hr = gst_d3d11_create_vertex_shader_simple (self->device, templ_vs_coord,
"main", input_desc, G_N_ELEMENTS (input_desc), &vs, &layout);
"VSMain_coord", input_desc, G_N_ELEMENTS (input_desc), &vs, &layout);
if (!gst_d3d11_result (hr, self->device)) {
GST_ERROR_OBJECT (self, "Failed to compile vertext shader");
return FALSE;
}
g_ascii_formatd (float_str_buf, G_ASCII_DTOSTR_BUF_SIZE, "%f", self->alpha);
ps_src = g_strdup_printf (templ_ps_checker,
self->info.width, self->info.height, checker_size, float_str_buf);
hr = gst_d3d11_create_pixel_shader_simple (self->device, ps_src, "main", &ps);
g_free (ps_src);
hr = gst_d3d11_create_pixel_shader_simple (self->device,
templ_ps_checker, "PSMain_checker", &ps);
if (!gst_d3d11_result (hr, self->device)) {
GST_ERROR_OBJECT (self, "Failed to compile pixel shader");
return FALSE;
@ -1000,6 +1012,16 @@ setup_checker_render (GstD3D11TestSrc * self, GstD3D11TestSrcRender * render,
return FALSE;
}
buffer_desc.Usage = D3D11_USAGE_DYNAMIC;
buffer_desc.ByteWidth = sizeof (CheckerConstBuffer);
buffer_desc.BindFlags = D3D11_BIND_CONSTANT_BUFFER;
buffer_desc.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE;
hr = device_handle->CreateBuffer (&buffer_desc, nullptr, &const_buffer);
if (!gst_d3d11_result (hr, self->device)) {
GST_ERROR_OBJECT (self, "Failed to create constant buffer");
return FALSE;
}
GstD3D11DeviceLockGuard lk (self->device);
hr = context_handle->Map (vertex_buffer.Get (), 0, D3D11_MAP_WRITE_DISCARD, 0,
&map);
@ -1064,8 +1086,14 @@ setup_checker_render (GstD3D11TestSrc * self, GstD3D11TestSrcRender * render,
quad->layout = layout.Detach ();
quad->vertex_buffer = vertex_buffer.Detach ();
quad->index_buffer = index_buffer.Detach ();
quad->const_buffer = const_buffer.Detach ();
quad->vertex_stride = sizeof (UvVertexData);
quad->index_count = 6;
quad->is_checker = TRUE;
quad->checker_const_buffer.width = self->info.width;
quad->checker_const_buffer.height = self->info.height;
quad->checker_const_buffer.checker_size = checker_size;
quad->checker_const_buffer.alpha = self->alpha;
return TRUE;
}
@ -1996,7 +2024,6 @@ gst_d3d11_test_src_draw_pattern (GstD3D11TestSrc * self,
{
GstD3D11TestSrcRender *render = self->render;
HRESULT hr;
TimeConstBuffer *time_buf;
D3D11_MAPPED_SUBRESOURCE map;
UINT offsets = 0;
@ -2032,8 +2059,17 @@ gst_d3d11_test_src_draw_pattern (GstD3D11TestSrc * self,
return FALSE;
}
time_buf = (TimeConstBuffer *) map.pData;
time_buf->time = (FLOAT) pts / GST_SECOND;
if (quad->is_snow) {
SnowConstBuffer *const_buf = (SnowConstBuffer *) map.pData;
const_buf->time = (FLOAT) pts / GST_SECOND;
const_buf->alpha = self->alpha;
} else if (quad->is_checker) {
CheckerConstBuffer *const_buf = (CheckerConstBuffer *) map.pData;
quad->checker_const_buffer.alpha = self->alpha;
memcpy (const_buf, &quad->checker_const_buffer,
sizeof (CheckerConstBuffer));
}
context->Unmap (quad->const_buffer, 0);
context->PSSetConstantBuffers (0, 1, &quad->const_buffer);