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win-capture: Implement D3D8 game capture support

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This commit is contained in:
Bl00drav3n
2015-02-06 18:43:24 +01:00
committed by jp9000
parent bc57e5b2c2
commit 74042fff96
5 changed files with 418 additions and 7 deletions
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111
plugins/win-capture/game-capture.c
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@@ -86,6 +86,7 @@ struct game_capture {
bool error_acquiring : 1;
bool dwm_capture : 1;
bool initial_config : 1;
bool convert_16bit : 1;
struct game_capture_config config;
@@ -838,6 +839,94 @@ static inline bool init_capture_data(struct game_capture *gc)
return true;
}
#define PIXEL_16BIT_SIZE 2
#define PIXEL_32BIT_SIZE 4
static inline uint32_t convert_5_to_8bit(uint16_t val)
{
return (uint32_t)((double)(val & 0x1F) * (255.0/31.0));
}
static inline uint32_t convert_6_to_8bit(uint16_t val)
{
return (uint32_t)((double)(val & 0x3F) * (255.0/63.0));
}
static void copy_b5g6r5_tex(struct game_capture *gc, int cur_texture,
uint8_t *data, uint32_t pitch)
{
uint8_t *input = gc->texture_buffers[cur_texture];
uint32_t gc_cx = gc->cx;
uint32_t gc_cy = gc->cy;
uint32_t gc_pitch = gc->pitch;
for (uint32_t y = 0; y < gc_cy; y++) {
register uint8_t *in = input + (gc_pitch * y);
register uint8_t *end = input + (gc_cx * PIXEL_16BIT_SIZE);
register uint8_t *out = data + pitch;
while (in < end) {
register uint16_t in_pix = *(uint16_t*)in;
register uint32_t out_pix = 0xFF000000;
out_pix |= convert_5_to_8bit(in_pix);
in_pix >>= 5;
out_pix |= convert_6_to_8bit(in_pix) << 8;
in_pix >>= 6;
out_pix |= convert_5_to_8bit(in_pix) << 16;
*(uint32_t*)out = out_pix;
in += PIXEL_16BIT_SIZE;
out += PIXEL_32BIT_SIZE;
}
}
}
static void copy_b5g5r5a1_tex(struct game_capture *gc, int cur_texture,
uint8_t *data, uint32_t pitch)
{
uint8_t *input = gc->texture_buffers[cur_texture];
uint32_t gc_cx = gc->cx;
uint32_t gc_cy = gc->cy;
uint32_t gc_pitch = gc->pitch;
for (uint32_t y = 0; y < gc_cy; y++) {
register uint8_t *in = input + (gc_pitch * y);
register uint8_t *end = input + (gc_cx * PIXEL_16BIT_SIZE);
register uint8_t *out = data + pitch;
while (in < end) {
register uint16_t in_pix = *(uint16_t*)in;
register uint32_t out_pix = 0;
out_pix |= convert_5_to_8bit(in_pix);
in_pix >>= 5;
out_pix |= convert_5_to_8bit(in_pix) << 8;
in_pix >>= 5;
out_pix |= convert_5_to_8bit(in_pix) << 16;
in_pix >>= 5;
out_pix |= (in_pix * 255) << 24;
*(uint32_t*)out = out_pix;
in += PIXEL_16BIT_SIZE;
out += PIXEL_32BIT_SIZE;
}
}
}
static inline void copy_16bit_tex(struct game_capture *gc, int cur_texture,
uint8_t *data, uint32_t pitch)
{
if (gc->global_hook_info->format == DXGI_FORMAT_B5G5R5A1_UNORM) {
copy_b5g5r5a1_tex(gc, cur_texture, data, pitch);
} else if (gc->global_hook_info->format == DXGI_FORMAT_B5G6R5_UNORM) {
copy_b5g6r5_tex(gc, cur_texture, data, pitch);
}
}
static void copy_shmem_tex(struct game_capture *gc)
{
int cur_texture = gc->shmem_data->last_tex;
@@ -863,7 +952,10 @@ static void copy_shmem_tex(struct game_capture *gc)
}
if (gs_texture_map(gc->texture, &data, &pitch)) {
if (pitch == gc->pitch) {
if (gc->convert_16bit) {
copy_16bit_tex(gc, cur_texture, data, pitch);
} else if (pitch == gc->pitch) {
memcpy(data, gc->texture_buffers[cur_texture],
pitch * gc->cy);
} else {
@@ -884,18 +976,29 @@ static void copy_shmem_tex(struct game_capture *gc)
ReleaseMutex(mutex);
}
static inline bool is_16bit_format(uint32_t format)
{
return format == DXGI_FORMAT_B5G5R5A1_UNORM ||
format == DXGI_FORMAT_B5G6R5_UNORM;
}
static inline bool init_shmem_capture(struct game_capture *gc)
{
enum gs_color_format format;
gc->texture_buffers[0] =
(uint8_t*)gc->data + gc->shmem_data->tex1_offset;
gc->texture_buffers[1] =
(uint8_t*)gc->data + gc->shmem_data->tex2_offset;
gc->convert_16bit = is_16bit_format(gc->global_hook_info->format);
format = gc->convert_16bit ?
GS_BGRA : convert_format(gc->global_hook_info->format);
obs_enter_graphics();
gs_texture_destroy(gc->texture);
gc->texture = gs_texture_create(gc->cx, gc->cy,
convert_format(gc->global_hook_info->format),
1, NULL, GS_DYNAMIC);
gc->texture = gs_texture_create(gc->cx, gc->cy, format, 1, NULL,
GS_DYNAMIC);
obs_leave_graphics();
if (!gc->texture) {