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[obs] added monochrome cursor support

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This commit is contained in:
Geoffrey McRae 2020-10-11 12:04:10 +11:00
parent eb343ca82e
commit 4f40ce4b40
1 changed files with 120 additions and 51 deletions
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153
obs/lg.c
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@ -12,6 +12,7 @@
#include <stdio.h>
#include <unistd.h>
#include <stdatomic.h>
#include <GL/gl.h>
typedef enum
{
@ -40,14 +41,17 @@ typedef struct
pthread_t frameThread, pointerThread;
os_sem_t * frameSem;
bool cursorMono;
gs_texture_t * cursorTex;
struct gs_rect cursorRect;
bool cursorVisible;
volatile KVMFRCursor cursor;
KVMFRCursor cursor;
os_sem_t * cursorSem;
atomic_uint cursorVer;
unsigned int cursorCurVer;
uint32_t cursorSize;
void * cursorData;
uint32_t * cursorData;
}
LGPlugin;
@ -182,6 +186,16 @@ static void * frameThread(void * data)
return NULL;
}
inline static void allocCursorData(LGPlugin * this, const unsigned int size)
{
if (this->cursorSize >= size)
return;
bfree(this->cursorData);
this->cursorSize = size;
this->cursorData = bmalloc(size);
}
static void * pointerThread(void * data)
{
LGPlugin * this = (LGPlugin *)data;
@ -209,57 +223,69 @@ static void * pointerThread(void * data)
continue;
}
KVMFRCursor * cursor = (KVMFRCursor *)msg.mem;
const KVMFRCursor * const cursor = (const KVMFRCursor * const)msg.mem;
this->cursorVisible =
msg.udata & CURSOR_FLAG_VISIBLE;
if (msg.udata & CURSOR_FLAG_SHAPE)
{
os_sem_wait(this->cursorSem);
const uint8_t * data = (const uint8_t *)(cursor + 1);
const uint8_t * const data = (const uint8_t * const)(cursor + 1);
unsigned int dataSize = 0;
this->cursor.type = cursor->type;
switch(cursor->type)
{
case CURSOR_TYPE_MASKED_COLOR:
// fall through
{
dataSize = cursor->height * cursor->pitch;
allocCursorData(this, dataSize);
const uint32_t * s = (const uint32_t *)data;
uint32_t * d = this->cursorData;
for(int i = 0; i < dataSize; ++i, ++s, ++d)
*d = (*s & ~0xFF000000) | (*s & 0xFF000000 ? 0x0 : 0xFF000000);
break;
}
case CURSOR_TYPE_COLOR:
{
dataSize = cursor->height * cursor->pitch;
allocCursorData(this, dataSize);
memcpy(this->cursorData, data, dataSize);
break;
}
case CURSOR_TYPE_MONOCHROME:
dataSize = cursor->width * cursor->height;
{
dataSize = cursor->height * sizeof(uint32_t);
allocCursorData(this, dataSize);
const int hheight = cursor->height / 2;
uint32_t * d = this->cursorData;
for(int y = 0; y < hheight; ++y)
for(int x = 0; x < cursor->width; ++x)
{
const uint8_t * srcAnd = data + (cursor->pitch * y) + (x / 8);
const uint8_t * srcXor = srcAnd + cursor->pitch * hheight;
const uint8_t mask = 0x80 >> (x % 8);
const uint32_t andMask = (*srcAnd & mask) ? 0xFFFFFFFF : 0xFF000000;
const uint32_t xorMask = (*srcXor & mask) ? 0x00FFFFFF : 0x00000000;
d[y * cursor->width + x ] = andMask;
d[y * cursor->width + x + cursor->width * hheight] = xorMask;
}
break;
}
default:
printf("Invalid cursor type\n");
break;
}
if (this->cursorSize < dataSize)
{
free(this->cursorData);
this->cursorSize = dataSize;
this->cursorData = bmalloc(dataSize);
}
memcpy(this->cursorData, data, dataSize);
if (cursor->type == CURSOR_TYPE_MASKED_COLOR)
{
for(int i = 0; i < dataSize; ++i)
{
const uint32_t c = ((uint32_t *)this->cursorData)[i];
((uint32_t *)this->cursorData)[i] = (c & ~0xFF000000) | (c & 0xFF000000 ? 0x0 : 0xFF000000);
}
}
this->cursor.type = cursor->type;
this->cursor.width = cursor->width;
this->cursor.height = cursor->height;
this->cursor.hx = cursor->hx;
this->cursor.hy = cursor->hy;
atomic_fetch_add_explicit(&this->cursorVer, 1, memory_order_relaxed);
os_sem_post(this->cursorSem);
@ -342,6 +368,9 @@ static void lgVideoTick(void * data, float seconds)
return;
}
this->cursorRect.x = this->cursor.x;
this->cursorRect.y = this->cursor.y;
/* update the cursor texture */
unsigned int cursorVer = atomic_load(&this->cursorVer);
if (cursorVer != this->cursorCurVer)
@ -361,23 +390,39 @@ static void lgVideoTick(void * data, float seconds)
/* fallthrough */
case CURSOR_TYPE_COLOR:
this->cursorMono = false;
this->cursorTex =
gs_texture_create(
this->cursor.width,
this->cursor.height,
GS_BGRA,
1,
(const uint8_t**)&this->cursorData,
(const uint8_t **)&this->cursorData,
GS_DYNAMIC);
break;
case CURSOR_TYPE_MONOCHROME:
this->cursorMono = true;
this->cursorTex =
gs_texture_create(
this->cursor.width,
this->cursor.height,
GS_RGBA,
1,
(const uint8_t **)&this->cursorData,
GS_DYNAMIC);
break;
default:
printf("only rgb cursors supported at this time\n");
break;
}
obs_leave_graphics();
this->cursorCurVer = cursorVer;
this->cursorRect.cx = this->cursor.width;
this->cursorRect.cy = this->cursor.height;
os_sem_post(this->cursorSem);
}
@ -483,6 +528,15 @@ static void lgVideoRender(void * data, gs_effect_t * effect)
if (!this->texture)
return;
effect = obs_get_base_effect(OBS_EFFECT_OPAQUE);
gs_eparam_t *image = gs_effect_get_param_by_name(effect, "image");
gs_effect_set_texture(image, this->texture);
while (gs_effect_loop(effect, "Draw"))
gs_draw_sprite(this->texture, 0, 0, 0);
if (this->cursorVisible && this->cursorTex)
{
struct matrix4 m4;
gs_matrix_get(&m4);
struct gs_rect r =
@ -494,28 +548,43 @@ static void lgVideoRender(void * data, gs_effect_t * effect)
};
gs_set_scissor_rect(&r);
effect = obs_get_base_effect(OBS_EFFECT_OPAQUE);
gs_eparam_t *image = gs_effect_get_param_by_name(effect, "image");
gs_effect_set_texture(image, this->texture);
while (gs_effect_loop(effect, "Draw"))
gs_draw_sprite(this->texture, 0, 0, 0);
if (this->cursorVisible && this->cursorTex)
{
effect = obs_get_base_effect(OBS_EFFECT_DEFAULT);
image = gs_effect_get_param_by_name(effect, "image");
gs_effect_set_texture(image, this->cursorTex);
gs_matrix_push();
gs_matrix_translate3f(this->cursorRect.x, this->cursorRect.y, 0.0f);
if (!this->cursorMono)
{
while (gs_effect_loop(effect, "Draw"))
gs_draw_sprite(this->cursorTex, 0, 0, 0);
}
else
{
while (gs_effect_loop(effect, "Draw"))
{
gs_matrix_push();
gs_matrix_translate3f(this->cursor.x, this->cursor.y, 0.0f);
gs_draw_sprite(this->cursorTex, 0, 0, 0);
gs_matrix_pop();
glEnable(GL_COLOR_LOGIC_OP);
glLogicOp(GL_AND);
gs_draw_sprite_subregion(
this->cursorTex , 0,
0 , 0,
this->cursorRect.cx, this->cursorRect.cy / 2 - 1);
glLogicOp(GL_XOR);
gs_draw_sprite_subregion(
this->cursorTex , 0,
0 , this->cursorRect.cy / 2 + 1,
this->cursorRect.cx, this->cursorRect.cy / 2);
glDisable(GL_COLOR_LOGIC_OP);
}
}
gs_matrix_pop();
gs_set_scissor_rect(NULL);
}
}
static uint32_t lgGetWidth(void * data)