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Optimise Wii U video code a little

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This commit is contained in:
Clownacy 2020-04-17 18:07:54 +01:00
parent 76e7a6f857
commit 670f49db77
1 changed files with 26 additions and 19 deletions
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45
src/Backends/WiiU/Window-Software.cpp
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@ -61,7 +61,7 @@ unsigned char* WindowBackend_Software_GetFramebuffer(size_t *pitch)
void WindowBackend_Software_Display(void)
{
const size_t line_size = (drc_buffer_size / 480) / 2;
const size_t pitch = (drc_buffer_size / 480) / 2;
static bool flipflop;
@ -69,17 +69,18 @@ void WindowBackend_Software_Display(void)
if (framebuffer_width == 320 && framebuffer_height == 240)
{
const size_t line_size = framebuffer_width * 2 * 4;
const size_t line_delta = pitch - line_size;
unsigned char *out_pointer = drc_framebuffer;
if (!flipflop)
out_pointer += drc_buffer_size / 2;
out_pointer += ((854 - (framebuffer_width * 2)) * 4) / 2;
for (size_t y = 0; y < framebuffer_height; ++y)
{
unsigned char *out_line = &drc_framebuffer[line_size * 2 * y];
if (!flipflop)
out_line += drc_buffer_size / 2;
out_line += ((854 - (framebuffer_width * 2)) * 4) / 2;
unsigned char *out_pointer = out_line;
for (size_t x = 0; x < framebuffer_width; ++x)
{
*out_pointer++ = in_pointer[0];
@ -94,21 +95,25 @@ void WindowBackend_Software_Display(void)
in_pointer += 3;
}
memcpy(out_line + line_size, out_line, framebuffer_width * 4 * 2);
memcpy(out_pointer + line_delta, out_pointer - line_size, line_size);
out_pointer += line_delta + pitch;
}
}
else
{
const size_t line_size = framebuffer_width * 4;
const size_t line_delta = pitch - line_size;
unsigned char *out_pointer = drc_framebuffer;
if (!flipflop)
out_pointer += drc_buffer_size / 2;
out_pointer += ((854 - framebuffer_width) * 4) / 2;
for (size_t y = 0; y < framebuffer_height; ++y)
{
unsigned char *out_pointer = &drc_framebuffer[line_size * y];
if (!flipflop)
out_pointer += drc_buffer_size / 2;
out_pointer += ((854 - framebuffer_width) * 4) / 2;
out_pointer += ((480 - framebuffer_height) * line_size) / 2;
for (size_t x = 0; x < framebuffer_width; ++x)
{
*out_pointer++ = *in_pointer++;
@ -116,6 +121,8 @@ void WindowBackend_Software_Display(void)
*out_pointer++ = *in_pointer++;
*out_pointer++ = 0;
}
out_pointer += line_delta;
}
}