diff options
Diffstat (limited to 'src/osd/modules/render/bgfxutil.cpp')
-rw-r--r-- | src/osd/modules/render/bgfxutil.cpp | 34 |
1 files changed, 30 insertions, 4 deletions
diff --git a/src/osd/modules/render/bgfxutil.cpp b/src/osd/modules/render/bgfxutil.cpp index e864cb98fb4..3d555bb60ad 100644 --- a/src/osd/modules/render/bgfxutil.cpp +++ b/src/osd/modules/render/bgfxutil.cpp @@ -14,10 +14,11 @@ #include "render.h" -const bgfx::Memory* bgfx_util::mame_texture_data_to_bgfx_texture_data(bgfx::TextureFormat::Enum &dst_format, uint32_t src_format, int rowpixels, int height, const rgb_t *palette, void *base, uint16_t &out_pitch, int &width_div_factor, int &width_mul_factor) +const bgfx::Memory* bgfx_util::mame_texture_data_to_bgfx_texture_data(bgfx::TextureFormat::Enum &dst_format, uint32_t src_format, int rowpixels, int width_margin, int height, const rgb_t *palette, void *base, uint16_t &out_pitch, int &width_div_factor, int &width_mul_factor) { bgfx::TextureInfo info; const bgfx::Memory *data = nullptr; + uint8_t *adjusted_base = (uint8_t *)base; switch (src_format) { @@ -28,7 +29,11 @@ const bgfx::Memory* bgfx_util::mame_texture_data_to_bgfx_texture_data(bgfx::Text out_pitch = rowpixels * 2; bgfx::calcTextureSize(info, rowpixels / width_div_factor, height, 1, false, false, 1, dst_format); - data = bgfx::copy(base, info.storageSize); + if (width_margin) + { + adjusted_base -= width_margin * 2; + } + data = bgfx::copy(adjusted_base, info.storageSize); break; case PRIMFLAG_TEXFORMAT(TEXFORMAT_PALETTE16): dst_format = bgfx::TextureFormat::R8; @@ -37,7 +42,11 @@ const bgfx::Memory* bgfx_util::mame_texture_data_to_bgfx_texture_data(bgfx::Text out_pitch = rowpixels * 2; bgfx::calcTextureSize(info, rowpixels * width_mul_factor, height, 1, false, false, 1, dst_format); - data = bgfx::copy(base, info.storageSize); + if (width_margin) + { + adjusted_base -= width_margin * 2; + } + data = bgfx::copy(adjusted_base, info.storageSize); break; case PRIMFLAG_TEXFORMAT(TEXFORMAT_ARGB32): case PRIMFLAG_TEXFORMAT(TEXFORMAT_RGB32): @@ -47,7 +56,11 @@ const bgfx::Memory* bgfx_util::mame_texture_data_to_bgfx_texture_data(bgfx::Text out_pitch = rowpixels * 4; bgfx::calcTextureSize(info, rowpixels, height, 1, false, false, 1, dst_format); - data = bgfx::copy(base, info.storageSize); + if (width_margin) + { + adjusted_base -= width_margin * 4; + } + data = bgfx::copy(adjusted_base, info.storageSize); break; } @@ -96,6 +109,7 @@ uint64_t bgfx_util::get_blend_state(uint32_t blend) case BLENDMODE_ALPHA: return BGFX_STATE_BLEND_FUNC(BGFX_STATE_BLEND_SRC_ALPHA, BGFX_STATE_BLEND_INV_SRC_ALPHA); case BLENDMODE_RGB_MULTIPLY: + //return BGFX_STATE_BLEND_FUNC_SEPARATE(BGFX_STATE_BLEND_DST_COLOR, BGFX_STATE_BLEND_INV_SRC_COLOR, BGFX_STATE_BLEND_ONE, BGFX_STATE_BLEND_ZERO); return BGFX_STATE_BLEND_FUNC_SEPARATE(BGFX_STATE_BLEND_DST_COLOR, BGFX_STATE_BLEND_ZERO, BGFX_STATE_BLEND_DST_ALPHA, BGFX_STATE_BLEND_ZERO); case BLENDMODE_ADD: return BGFX_STATE_BLEND_FUNC(BGFX_STATE_BLEND_SRC_ALPHA, BGFX_STATE_BLEND_ONE); @@ -104,3 +118,15 @@ uint64_t bgfx_util::get_blend_state(uint32_t blend) } return 0L; } + +void bgfx_util::find_prescale_factor(uint16_t width, uint16_t height, uint16_t max_prescale_size, uint16_t &xprescale, uint16_t &yprescale) +{ + while (xprescale > 1 && width * xprescale > max_prescale_size) + { + xprescale--; + } + while (yprescale > 1 && height * yprescale > max_prescale_size) + { + yprescale--; + } +} |