agg_platform_support.cpp

gnash 在pc和嵌入式下开发需要的源码

//----------------------------------------------------------------------------
// Anti-Grain Geometry (AGG) - Version 2.5
// A high quality rendering engine for C++
// Copyright (C) 2002-2006 Maxim Shemanarev
// Contact: [e-mail]
//          [e-mail]
//          http://antigrain.com
// 
// AGG is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
// 
// AGG is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
// 
// You should have received a copy of the GNU General Public License
// along with AGG; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, 
// MA 02110-1301, USA.
//----------------------------------------------------------------------------

#include <windows.h>
#include <string.h>
#include "platform/agg_platform_support.h"
#include "platform/win32/agg_win32_bmp.h"
#include "util/agg_color_conv_rgb8.h"
#include "util/agg_color_conv_rgb16.h"


namespace agg
{
    
    //------------------------------------------------------------------------
    HINSTANCE g_windows_instance = 0;
    int       g_windows_cmd_show = 0;


    //------------------------------------------------------------------------
    class platform_specific
    {
    public:
        platform_specific(pix_format_e format, bool flip_y);

        void create_pmap(unsigned width, unsigned height, 
                         rendering_buffer* wnd);

        void display_pmap(HDC dc, const rendering_buffer* src);
        bool load_pmap(const char* fn, unsigned idx, 
                       rendering_buffer* dst);

        bool save_pmap(const char* fn, unsigned idx, 
                       const rendering_buffer* src);

        unsigned translate(unsigned keycode);

        pix_format_e  m_format;
        pix_format_e  m_sys_format;
        bool          m_flip_y;
        unsigned      m_bpp;
        unsigned      m_sys_bpp;
        HWND          m_hwnd;
        pixel_map     m_pmap_window;
        pixel_map     m_pmap_img[platform_support::max_images];
        unsigned      m_keymap[256];
        unsigned      m_last_translated_key;
        int           m_cur_x;
        int           m_cur_y;
        unsigned      m_input_flags;
        bool          m_redraw_flag;
        HDC           m_current_dc;
        LARGE_INTEGER m_sw_freq;
        LARGE_INTEGER m_sw_start;
    };


    //------------------------------------------------------------------------
    platform_specific::platform_specific(pix_format_e format, bool flip_y) :
        m_format(format),
        m_sys_format(pix_format_undefined),
        m_flip_y(flip_y),
        m_bpp(0),
        m_sys_bpp(0),
        m_hwnd(0),
        m_last_translated_key(0),
        m_cur_x(0),
        m_cur_y(0),
        m_input_flags(0),
        m_redraw_flag(true),
        m_current_dc(0)
    {
        memset(m_keymap, 0, sizeof(m_keymap));

        m_keymap[VK_PAUSE]      = key_pause;
        m_keymap[VK_CLEAR]      = key_clear;

        m_keymap[VK_NUMPAD0]    = key_kp0;
        m_keymap[VK_NUMPAD1]    = key_kp1;
        m_keymap[VK_NUMPAD2]    = key_kp2;
        m_keymap[VK_NUMPAD3]    = key_kp3;
        m_keymap[VK_NUMPAD4]    = key_kp4;
        m_keymap[VK_NUMPAD5]    = key_kp5;
        m_keymap[VK_NUMPAD6]    = key_kp6;
        m_keymap[VK_NUMPAD7]    = key_kp7;
        m_keymap[VK_NUMPAD8]    = key_kp8;
        m_keymap[VK_NUMPAD9]    = key_kp9;
        m_keymap[VK_DECIMAL]    = key_kp_period;
        m_keymap[VK_DIVIDE]     = key_kp_divide;
        m_keymap[VK_MULTIPLY]   = key_kp_multiply;
        m_keymap[VK_SUBTRACT]   = key_kp_minus;
        m_keymap[VK_ADD]        = key_kp_plus;

        m_keymap[VK_UP]         = key_up;
        m_keymap[VK_DOWN]       = key_down;
        m_keymap[VK_RIGHT]      = key_right;
        m_keymap[VK_LEFT]       = key_left;
        m_keymap[VK_INSERT]     = key_insert;
        m_keymap[VK_DELETE]     = key_delete;
        m_keymap[VK_HOME]       = key_home;
        m_keymap[VK_END]        = key_end;
        m_keymap[VK_PRIOR]      = key_page_up;
        m_keymap[VK_NEXT]       = key_page_down;

        m_keymap[VK_F1]         = key_f1;
        m_keymap[VK_F2]         = key_f2;
        m_keymap[VK_F3]         = key_f3;
        m_keymap[VK_F4]         = key_f4;
        m_keymap[VK_F5]         = key_f5;
        m_keymap[VK_F6]         = key_f6;
        m_keymap[VK_F7]         = key_f7;
        m_keymap[VK_F8]         = key_f8;
        m_keymap[VK_F9]         = key_f9;
        m_keymap[VK_F10]        = key_f10;
        m_keymap[VK_F11]        = key_f11;
        m_keymap[VK_F12]        = key_f12;
        m_keymap[VK_F13]        = key_f13;
        m_keymap[VK_F14]        = key_f14;
        m_keymap[VK_F15]        = key_f15;

        m_keymap[VK_NUMLOCK]    = key_numlock;
        m_keymap[VK_CAPITAL]    = key_capslock;
        m_keymap[VK_SCROLL]     = key_scrollock;


        switch(m_format)
        {
        case pix_format_bw:
            m_sys_format = pix_format_bw;
            m_bpp = 1;
            m_sys_bpp = 1;
            break;

        case pix_format_gray8:
            m_sys_format = pix_format_gray8;
            m_bpp = 8;
            m_sys_bpp = 8;
            break;

        case pix_format_gray16:
            m_sys_format = pix_format_gray8;
            m_bpp = 16;
            m_sys_bpp = 8;
            break;

        case pix_format_rgb565:
        case pix_format_rgb555:
            m_sys_format = pix_format_rgb555;
            m_bpp = 16;
            m_sys_bpp = 16;
            break;

        case pix_format_rgbAAA:
        case pix_format_bgrAAA:
        case pix_format_rgbBBA:
        case pix_format_bgrABB:
            m_sys_format = pix_format_bgr24;
            m_bpp = 32;
            m_sys_bpp = 24;
            break;

        case pix_format_rgb24:
        case pix_format_bgr24:
            m_sys_format = pix_format_bgr24;
            m_bpp = 24;
            m_sys_bpp = 24;
            break;

        case pix_format_rgb48:
        case pix_format_bgr48:
            m_sys_format = pix_format_bgr24;
            m_bpp = 48;
            m_sys_bpp = 24;
            break;

        case pix_format_bgra32:
        case pix_format_abgr32:
        case pix_format_argb32:
        case pix_format_rgba32:
            m_sys_format = pix_format_bgra32;
            m_bpp = 32;
            m_sys_bpp = 32;
            break;

        case pix_format_bgra64:
        case pix_format_abgr64:
        case pix_format_argb64:
        case pix_format_rgba64:
            m_sys_format = pix_format_bgra32;
            m_bpp = 64;
            m_sys_bpp = 32;
            break;
        }
        ::QueryPerformanceFrequency(&m_sw_freq);
        ::QueryPerformanceCounter(&m_sw_start);
    }


    //------------------------------------------------------------------------
    void platform_specific::create_pmap(unsigned width, 
                                        unsigned height,
                                        rendering_buffer* wnd)
    {
        m_pmap_window.create(width, height, org_e(m_bpp));
        wnd->attach(m_pmap_window.buf(), 
                    m_pmap_window.width(),
                    m_pmap_window.height(),
                      m_flip_y ?
                      m_pmap_window.stride() :
                     -m_pmap_window.stride());
    }


    //------------------------------------------------------------------------
    static void convert_pmap(rendering_buffer* dst, 
                             const rendering_buffer* src, 
                             pix_format_e format)
    {
        switch(format)
        {
        case pix_format_gray8:
            break;

        case pix_format_gray16:
            color_conv(dst, src, color_conv_gray16_to_gray8());
            break;

        case pix_format_rgb565:
            color_conv(dst, src, color_conv_rgb565_to_rgb555());
            break;

        case pix_format_rgbAAA:
            color_conv(dst, src, color_conv_rgbAAA_to_bgr24());
            break;

        case pix_format_bgrAAA:
            color_conv(dst, src, color_conv_bgrAAA_to_bgr24());
            break;

        case pix_format_rgbBBA:
            color_conv(dst, src, color_conv_rgbBBA_to_bgr24());
            break;

        case pix_format_bgrABB:
            color_conv(dst, src, color_conv_bgrABB_to_bgr24());
            break;

        case pix_format_rgb24:
            color_conv(dst, src, color_conv_rgb24_to_bgr24());
            break;

        case pix_format_rgb48:
            color_conv(dst, src, color_conv_rgb48_to_bgr24());
            break;

        case pix_format_bgr48:
            color_conv(dst, src, color_conv_bgr48_to_bgr24());
            break;

        case pix_format_abgr32:
            color_conv(dst, src, color_conv_abgr32_to_bgra32());
            break;

        case pix_format_argb32:
            color_conv(dst, src, color_conv_argb32_to_bgra32());
            break;

        case pix_format_rgba32:
            color_conv(dst, src, color_conv_rgba32_to_bgra32());
            break;

        case pix_format_bgra64:
            color_conv(dst, src, color_conv_bgra64_to_bgra32());
            break;

        case pix_format_abgr64:
            color_conv(dst, src, color_conv_abgr64_to_bgra32());
            break;

        case pix_format_argb64:
            color_conv(dst, src, color_conv_argb64_to_bgra32());
            break;

        case pix_format_rgba64:
            color_conv(dst, src, color_conv_rgba64_to_bgra32());
            break;
        }
    }


    //------------------------------------------------------------------------
    void platform_specific::display_pmap(HDC dc, const rendering_buffer* src)
    {
        if(m_sys_format == m_format)
        {
            m_pmap_window.draw(dc);
        }
        else
        {
            pixel_map pmap_tmp;
            pmap_tmp.create(m_pmap_window.width(), 
                            m_pmap_window.height(),
                            org_e(m_sys_bpp));

            rendering_buffer rbuf_tmp;
            rbuf_tmp.attach(pmap_tmp.buf(),
                            pmap_tmp.width(),
                            pmap_tmp.height(),
                            m_flip_y ?
                              pmap_tmp.stride() :
                             -pmap_tmp.stride());

            convert_pmap(&rbuf_tmp, src, m_format);
            pmap_tmp.draw(dc);
        }
    }



    //------------------------------------------------------------------------
    bool platform_specific::save_pmap(const char* fn, unsigned idx, 
                                      const rendering_buffer* src)
    {
        if(m_sys_format == m_format)
        {
            return m_pmap_img[idx].save_as_bmp(fn);
        }

        pixel_map pmap_tmp;
        pmap_tmp.create(m_pmap_img[idx].width(), 
                          m_pmap_img[idx].height(),
                          org_e(m_sys_bpp));

        rendering_buffer rbuf_tmp;
        rbuf_tmp.attach(pmap_tmp.buf(),
                          pmap_tmp.width(),
                          pmap_tmp.height(),
                          m_flip_y ?
                          pmap_tmp.stride() :
                          -pmap_tmp.stride());

        convert_pmap(&rbuf_tmp, src, m_format);
        return pmap_tmp.save_as_bmp(fn);
    }



    //------------------------------------------------------------------------
    bool platform_specific::load_pmap(const char* fn, unsigned idx,